Bioenergy engineering companies focus on converting organic materials into renewable energy and products. This industry is vital in tackling climate change by reducing reliance on fossil fuels and harnessing sustainable energy sources. Companies range from small startups developing innovative technology to large enterprises specializing in comprehensive systems for large-scale production. The sector is poised for substantial growth as global demands for cleaner energy solutions rise, especially with advancements in efficiency and resource recovery techniques that improve economic viability. As sustainability becomes a pressing necessity, bioenergy stands out as a promising field for investment and innovation.

The following list highlights 28 prominent bioenergy engineering companies, varying in size from small firms to those employing thousands. Most are headquartered in Brazil, emphasizing the country's strong presence in this renewable energy sector, but notable companies also hail from the United States and Europe. Founded from the late 1950s through recent years, these companies showcase expertise in biofuels, biogas technologies, and innovative waste management solutions. Their impressive range of specializations signals the dynamic nature of the industry as it anticipates transformations in energy consumption and production.

Continue reading to explore the top bioenergy engineering companies.

Top 28 Bioenergy Engineering Companies

1. GranBio

• Website: granbio.com.br
• Ownership type: Private
• Headquarters: Sao Paulo, Sao Paulo, Brazil
• Employee distribution: Brazil 98%, United States (USA) 2%
• Founded year: 2011
• Headcount: 201-500
• LinkedIn: granbio

GranBio Investimentos S.A., founded in 2011 and based in São Paulo, Brazil, is a biotechnology firm dedicated to creating sustainable technologies to address climate change. The company specializes in the production of advanced biofuels, biochemicals, and renewable materials, catering to the energy and manufacturing sectors. GranBio operates through integrated solutions that convert biomass into valuable products, aiming for a Net Zero carbon footprint. Their notable technologies include GreenPower+ for producing cellulosic sugars and AVAP+ for generating high-purity lignocellulosic sugars. GranBio also runs the BioFlex plant, which is the largest facility for cellulosic ethanol in Brazil. The company has established a strong research and development presence, particularly through its Thomaston center in the United States, where it has developed numerous patented technologies. GranBio's commitment to innovation and sustainability positions it as a significant contributor to the bioenergy industry.

2. BP Bunge Bioenergia

• Website: bpbunge.com.br
• Ownership type: Private
• Headquarters: Sao Paulo, Sao Paulo, Brazil
• Founded year: 2019
• Headcount: 10001+
• LinkedIn: bp-bunge-bioenergia

BP Bunge Bioenergia, based in Sao Paulo, Brazil, is a bioenergy company that specializes in the production of bioethanol and sugar. Established in 2019, the company has rapidly positioned itself as a key player in the bioenergy sector. BP Bunge Bioenergia provides essential products that support sustainable energy solutions and contribute to food supply chains. Their operations not only focus on bioethanol production but also extend to renewable energy services, making them a vital contributor to Brazil's energy landscape. The company serves various businesses in the agricultural and energy sectors, highlighting its integral role in promoting sustainability and innovation within the industry.

3. Bioenergy Devco

• Website: bioenergydevco.com
• Ownership type: Private Equity
• Headquarters: Annapolis, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $30.0M, March 2023
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: bioenergydevco

Bioenergy Devco, founded in 2016 and based in Annapolis, Maryland, is a private equity-backed company specializing in renewable energy through anaerobic digestion technology. The firm focuses on converting food waste into renewable natural gas and nutrient-rich soil amendments, catering to municipalities, companies, and utilities. With a global presence that includes over 250 facilities, Bioenergy Devco is dedicated to providing sustainable waste management solutions that help clients achieve environmental goals and reduce greenhouse gas emissions. The company has recently secured $30 million in funding, reflecting its growth trajectory and commitment to advancing its innovative technologies in the bioenergy sector.

4. BTS Biogas

• Website: bts-biogas.com
• Ownership type: Corporate
• Headquarters: Affi, Italy
• Employee distribution: Italy 92%, United Kingdom (UK) 3%, France 3%, Other 3%
• Latest funding: August 2019
• Founded year: 1996
• Headcount: 51-200
• LinkedIn: b-t-s-italia-srl

BTS Biogas, founded in 1996 and based in Affi, Italy, specializes in the production of biogas and biomethane. The company designs and manages anaerobic digesters, offering comprehensive technical assistance and biological consulting services to clients in agriculture and waste management. Their solutions are aimed at transforming waste into clean energy, thereby promoting sustainability and minimizing environmental impact. With a workforce of approximately 106 employees, BTS Biogas operates primarily in Italy, but also has a presence in the United Kingdom, France, and the United States. The company emphasizes the importance of the circular economy, focusing on the recovery and reuse of materials to create renewable energy. Their commitment to innovation and operational excellence is evident in their tailored projects that integrate seamlessly into existing infrastructures, providing value to their clients while supporting environmental goals.

5. Bevap Bioenergia

• Website: bevapbioenergia.com.br
• Ownership type: Private
• Headquarters: Madagascar
• Employee distribution: Brazil 100%
• Founded year: 2009
• Headcount: 1001-5000
• LinkedIn: bevapbioenergia

Bevap Bioenergia, established in 2009, operates primarily in the bioenergy sector, specializing in the production of ethanol, sugar, and electricity. The company is based in João Pinheiro, Minas Gerais, Brazil, and employs a workforce of approximately 909 individuals. Bevap is recognized for its advanced technological approaches in both agricultural and industrial processes, which enhance sustainability and operational efficiency. The company utilizes modern equipment and automated systems to optimize production, ensuring minimal environmental impact. Additionally, Bevap has been awarded for its innovative practices, including its commitment to social responsibility and environmental stewardship. Their focus on co-generation of energy from biomass, particularly through the use of sugarcane byproducts, further underscores their role in promoting renewable energy solutions. Overall, Bevap Bioenergia is positioned as a significant contributor to the bioenergy industry, actively engaging in practices that align with the growing demand for sustainable energy sources.

6. BTG Biomass Technology Group BV

• Website: btgworld.com
• Ownership type: Private
• Headquarters: Enschede, Overijssel, Netherlands
• Employee distribution: Netherlands 100%
• Founded year: 1987
• Headcount: 11-50
• LinkedIn: btg-biomass-technology-group

BTG Biomass Technology Group BV, based in Enschede, Netherlands, is a private consulting and research firm that has been active since 1987. The company specializes in biomass technology, focusing on the conversion of biomass into fuels, energy, and biobased raw materials. With a team of approximately 26 professionals, BTG combines academic intelligence with practical experience to provide consultancy, research and development, and sustainability analysis. They serve a wide range of clients, including businesses, governments, and non-governmental organizations, helping them navigate the complexities of transitioning to bio-based energy solutions. BTG has a strong track record, having successfully completed hundreds of projects in over 80 countries. Their work spans various themes, including energy transition, sustainability, and circular economy, reflecting their commitment to fostering a sustainable future. The company also operates a research and technology development unit, where they innovate and develop new processes for biomass conversion, further solidifying their role in the bioenergy sector.

7. Agraferm GmbH

• Website: agraferm.com
• Ownership type: Private
• Headquarters: Pfaffenhofen An Der Ilm, Bavaria, Germany
• Employee distribution: Germany 100%
• Founded year: 2004
• Headcount: 11-50
• LinkedIn: agraferm

Agraferm GmbH, based in Pfaffenhofen An Der Ilm, Bavaria, Germany, is a private company founded in 2004. It specializes in biogas technology and renewable energy solutions, focusing on the design and construction of biogas plants and biomethane processing systems. The company serves clients in the renewable energy and waste management sectors, providing comprehensive services that include technical and biological support, maintenance, and training to ensure efficient operations. Agraferm has established itself as a key player in the industry, with a portfolio that includes over 100 reference projects across 20 countries. Their innovative approach allows for flexibility in substrate use, enabling them to adapt to various organic materials. This adaptability, combined with their commitment to quality and operational efficiency, positions Agraferm as a significant contributor to the bioenergy engineering field.

8. Agrivert

• Website: agrivert.co.uk
• Ownership type: Private Equity
• Headquarters: Stokenchurch, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 60%, Hong Kong S.A.R 40%
• Latest funding: $52.0M, August 2015
• Founded year: 1994
• Headcount: 51-200
• LinkedIn: agrivert-limited

Agrivert, established in 1994 and based in Stokenchurch, England, is a private equity-backed renewable energy company. The firm specializes in biogas and solar energy solutions, focusing on the design, construction, and operation of anaerobic digestion facilities and solar photovoltaic (PV) systems. Agrivert serves a range of clients, including commercial, agricultural, and domestic sectors, helping them achieve energy efficiency and sustainability. With a workforce of approximately 58 employees, the company has built a reputation for operational excellence, significantly outperforming industry norms in energy generation and uptime. Agrivert's recent acquisition of Chiltern Solar in 2023 further expands its offerings, allowing for integrated solar solutions alongside its biogas services. This strategic move positions Agrivert as a comprehensive provider in the renewable energy sector, enhancing its capabilities in both biogas and solar energy.

9. McJones Energy

• Website: mcjonesenergy.com
• Ownership type: Private
• Headquarters: London, England, United Kingdom (UK)
• Employee distribution: Ghana 86%, United Kingdom (UK) 14%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: mcjones-energy

McJones Energy is a private green energy company based in London, UK, founded in 2010. The firm specializes in renewable energy and biofuel projects, focusing on designing, building, and operating energy solutions that promote sustainability and reduce carbon emissions. Their portfolio includes the production of biofuels, such as bioethanol from cassava and granular activated carbon from waste coconut shells. McJones Energy targets fast-growing economies, aiming to meet increasing energy demands while maintaining ecological balance. The company operates with a strong project pipeline and collaborates with established technology firms to enhance their offerings. With a workforce primarily based in Ghana, McJones Energy is positioned to make a significant impact in the green energy sector, contributing to global carbon reduction efforts.

10. PlanET Biogastechnik GmbH

• Website: planet-biogas.com
• Ownership type: Corporate
• Headquarters: Gescher, North Rhine-Westphalia, Germany
• Employee distribution: Germany 95%, Brazil 2%, Poland 2%
• Latest funding: October 2017
• Founded year: 1998
• Headcount: 201-500
• LinkedIn: planet-biogastechnik-gmbh

PlanET Biogastechnik GmbH, based in Gescher, North Rhine-Westphalia, Germany, specializes in biogas solutions aimed at producing renewable energy from organic waste. Founded in 1998, the company has established itself as a significant player in the bioenergy sector. They offer a wide range of services, including the construction of biogas and biomethane plants, technical and biological services, and RePowering solutions. Their clientele primarily consists of businesses in agriculture and the food industry, which seek to enhance sustainability and energy efficiency. With a workforce of around 132 employees, PlanET has developed over 870 reference plants globally, demonstrating their expertise and commitment to advancing renewable energy solutions. Their operations extend beyond Germany, with a presence in Brazil and Poland, indicating their international reach and influence in the bioenergy market.

11. Biochemtex

• Website: biochemtex.com
• Ownership type: Corporate
• Headquarters: Tortona, Piedmont, Italy
• Employee distribution: Italy 89%, Canada 11%
• Latest funding: October 2018
• Founded year: 1958
• Headcount: 1001-5000
• LinkedIn: biochemtex

Biochemtex, based in Tortona, Piedmont, Italy, is a biochemical technology company that focuses on engineering processes for the production of biofuels and biochemicals from non-food biomass. Founded in 1958, the company has developed the Proesa™ technology, which allows for the sustainable production of ethanol from lignocellulosic materials. This technology has been demonstrated at the Crescentino plant, recognized as the first industrial-scale facility for second-generation bioethanol production. Biochemtex operates two research and development centers in Rivalta Scrivia and Modugno, where they work on optimizing their processes and developing new technologies. The company collaborates with various partners, including Beta Renewables, to advance their projects and expand their impact in the bioenergy sector. Their focus on sustainable chemistry and innovative solutions positions them as a significant player in the bioenergy engineering industry.

12. KATZEN International, Inc.

• Website: katzen.com
• Ownership type: Private
• Headquarters: Cincinnati, Ohio, United States (USA)
• Employee distribution: United States (USA) 89%, Brazil 11%
• Founded year: 1955
• Headcount: 11-50
• LinkedIn: katzen-international

KATZEN International, Inc., based in Cincinnati, Ohio, is an engineering consulting firm that specializes in the biofuels and bioethanol industries. Founded in 1955, the company has built a reputation for providing process design, construction liaison, training, and consulting services to clients in the chemical and agricultural sectors. With a dedicated team of engineers and scientists, KATZEN focuses on optimizing ethanol production facilities to enhance efficiency and reliability. Their extensive portfolio includes over 140 completed projects across 35 countries, demonstrating their global presence. KATZEN has been instrumental in developing technologies that have shaped the industry, such as the SSF process, which is now standard in 90% of grain-based ethanol plants. Their commitment to innovation and sustainability positions them as a significant player in the bioenergy sector.

13. quasar energy group

• Website: quasareg.com
• Ownership type: Private
• Headquarters: Cleveland, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: quasar-energy-group

Quasar Energy Group, founded in 2006 and based in Cleveland, Ohio, is a private company dedicated to renewable energy solutions, particularly in the field of biomass management and anaerobic digestion systems. The company serves agricultural businesses and municipalities, assisting them in managing organic waste and converting it into renewable energy. Their offerings include laboratory services, nutrient services, and transportation services, all designed to promote sustainability and effective waste management. Quasar Energy Group is also involved in the design and construction of anaerobic digestion systems, showcasing their engineering capabilities in the bioenergy sector. Their team comprises professionals with extensive experience in bioenergy and biomaterial production, which enhances their operational effectiveness and innovation in the industry.

14. LR Energy

• Website: lrenergy.in
• Ownership type: Private
• Headquarters: Gurugram, Haryana, India
• Employee distribution: India 100%
• Founded year: 2016
• Headcount: 201-500
• LinkedIn: lrenergy

LR Energy, founded in 2016 and based in Gurugram, Haryana, India, is a private renewable energy company that specializes in sustainable energy solutions. The company focuses on solar power, compressed biogas, and biodiesel, catering to businesses and organizations aiming to enhance energy security while minimizing environmental impact. With a workforce of around 72 employees, LR Energy operates through innovative technologies and projects that promote a greener future. Their portfolio includes significant projects like a 24 MW solar installation in Tosham and multiple compressed biogas projects in Karnal and Sonipat. LR Energy is dedicated to advancing sustainability through its comprehensive suite of renewable energy solutions, which also includes research and development initiatives. They have not reported any funding, indicating a self-sustained operational model.

15. Destilaria Novo Milênio

• Website: destilarianovomilenio.com.br
• Ownership type: Private
• Headquarters: Ribeirãozinho, Mato Grosso, Brazil
• Employee distribution: Brazil 100%
• Founded year: 2000
• Headcount: 501-1000
• LinkedIn: destilaria-novo-milenio

Destilaria Novo Milênio, founded in 2000 and located in Ribeirãozinho, Mato Grosso, Brazil, is a private bioenergy producer with a workforce of approximately 162 employees. The company focuses on renewable energy products, primarily derived from sugarcane, including ethanol, bioelectricity, and biofertilizers. Their ethanol production significantly reduces greenhouse gas emissions compared to traditional fossil fuels, making it a sustainable choice for various markets. Additionally, the company engages in cogeneration, producing bioelectricity from biomass, which not only meets their operational energy needs but also allows them to export surplus electricity to the Brazilian grid. They are also developing a sugar production project to further enhance their product offerings. Destilaria Novo Milênio emphasizes ethical standards and environmental responsibility in all its operations, reflecting a commitment to sustainable practices in the bioenergy sector.

16. TSK Electrónica y Electricidad

• Website: grupotsk.com
• Ownership type: Private
• Headquarters: Gijón, Asturias, Spain
• Employee distribution: Spain 55%, Mexico 10%, Dominican Republic 6%, Other 29%
• Founded year: 1986
• Headcount: 1001-5000
• LinkedIn: grupotsk

TSK Electrónica y Electricidad, founded in 1986 and based in Gijón, Asturias, Spain, is a private engineering and energy solutions provider. The company specializes in renewable energy and environmental services, offering a wide array of solutions that include energy transition strategies, electrical infrastructure, and industrial installations. TSK's portfolio features various renewable energy technologies, such as solar, wind, hydraulic, and notably, biomass energy. Their projects aim to support businesses and organizations in achieving sustainable and innovative energy solutions. With a workforce of over 1,400 employees, TSK operates not only in Spain but also in countries like Mexico, the Dominican Republic, and Kuwait, showcasing their international reach. The company has received multiple awards for its commitment to quality and innovation, further solidifying its reputation in the energy sector.

17. Biotechnika

• Website: biotechnika.net
• Ownership type: Private
• Headquarters: Lodz, Łódź Voivodeship, Poland
• Employee distribution: Poland 75%, India 25%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: biotechnika

Biotechnika, founded in 2006 and based in Lodz, Poland, is a private biotechnology firm with a workforce of approximately 56 employees. The company specializes in industrial biotechnology solutions, focusing on the production of ethanol and biofuels, bioenergy, and wastewater treatment. Biotechnika serves clients primarily in the agriculture and energy sectors, providing sustainable and efficient solutions tailored to their needs. The company is actively involved in research and development, working on innovative projects that enhance their service offerings. Their expertise extends to the design and construction of biogas plants and systems for producing high-value chemicals, showcasing their commitment to advancing bioenergy technologies. With a significant portion of their operations in Poland and a growing presence in India, Biotechnika is positioned as a notable player in the bioenergy engineering sector.

18. Millenium Bio

• Website: milleniumbioenergia.com.br
• Ownership type: Private
• Headquarters: Sao Paulo, Sao Paulo, Brazil
• Employee distribution: Brazil 90%, Australia 10%
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: millenium-bioenergia

Millenium Bioenergia, founded in 2014 and based in Sao Paulo, Brazil, is a private company dedicated to sustainable energy solutions. With a workforce of approximately 20 employees, the company operates primarily in Brazil, with a small presence in Australia. Millenium Bio focuses on producing a range of bioenergy products, including ethanol derived from both sugarcane and corn, bioelectricity, and biofertilizers. Their operations are characterized by a commitment to innovative agricultural practices and renewable energy technologies. The company has developed several proprietary processes, such as Total Flex, which enhances the efficiency of ethanol production by integrating the use of corn and sugarcane. Millenium Bio also emphasizes its environmental impact, claiming to have avoided millions of tons of CO2 emissions and generated substantial amounts of renewable energy. Their ongoing projects and expansion plans, including new facilities in Brazil and the United States, further demonstrate their active role in the bioenergy sector.

19. BDI-BioEnergy International GmbH

• Website: bdi-bioenergy.com
• Ownership type: Corporate
• Headquarters: Raaba-Grambach, Styria, Austria
• Employee distribution: Austria 100%
• Latest funding: January 2024
• Founded year: 1996
• Headcount: 51-200
• LinkedIn: bdi---bioenergy-international-ag

BDI-BioEnergy International GmbH, based in Raaba-Grambach, Austria, is a bioenergy company that specializes in innovative solutions for biodiesel and biogas production. Since its inception in 1996, BDI has focused on developing resource-saving technologies that upgrade residual and waste streams from various industries. The company provides a full range of services, including engineering, research and development, and plant optimization, catering to both industrial and municipal clients. BDI's commitment to sustainability is evident in its advanced technologies, such as Multi-Feedstock technology for biodiesel production, which allows for the use of various raw materials, including waste oils and animal fats. With a strong emphasis on R&D, BDI has secured over 320 patents, showcasing its innovative capabilities. The company has successfully completed more than 70 international plant construction projects, demonstrating its expertise and reliability in the bioenergy sector.

20. Bambuí Bioenergia S/A

• Website: bambuibioenergia.com.br
• Ownership type: Private
• Headquarters: Madagascar
• Employee distribution: Brazil 97%, Cameroon 3%
• Founded year: 2006
• Headcount: 1001-5000
• LinkedIn: bambu%c3%ad-bioenergia-s-a

Bambuí Bioenergia S/A, founded in 2006, is a private company based in Brazil that operates in the bioenergy sector, specifically focusing on the production of ethanol and electricity generation from biomass. The company cultivates sugarcane to source the biomass needed for its operations, ensuring a sustainable supply chain. Bambuí Bioenergia's facility is equipped with advanced technology, allowing it to process up to 520 tons of sugarcane per hour and produce approximately 1.1 million liters of hydrated ethanol daily. Additionally, the company generates electricity through a thermal power plant that utilizes biomass, contributing to Brazil's energy matrix. Bambuí Bioenergia is committed to environmental sustainability, employing practices such as mechanized harvesting and ensuring no child labor is involved in its operations. The company also aims to enhance its agricultural productivity and expand its product range to include anhydrous ethanol and sugar, while maintaining a focus on environmental, social, and governance (ESG) principles.

21. POET Ethanol Products

• Website: poetep.com
• Ownership type: Private
• Headquarters: Wichita, Kansas, United States (USA)
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: poet-ethanol-products

POET Ethanol Products, founded in 2000 and based in Wichita, Kansas, is a private company that specializes in the production of biofuels and sustainable bioproducts. With a workforce of approximately 129 employees, POET operates numerous bioprocessing facilities throughout the Midwest, focusing on the production of bioethanol, feed ingredients, and various renewable energy solutions. The company is dedicated to innovation and sustainability, pledging to achieve carbon neutrality by 2050. POET's integrated business model combines research and development with expertise in design, construction, and operations, allowing them to create plant-based alternatives to fossil fuels. Their commitment to the agricultural sector is evident through their partnerships with local farmers for grain purchasing, which supports both the economy and sustainable practices. POET has also made significant strides in biotechnology, holding over 80 patents worldwide, and continues to develop cleaner and more efficient renewable products. Their outreach initiatives, including scholarships and community grants, further demonstrate their commitment to social responsibility and community engagement.

22. Alder

• Website: alderfuels.com
• Ownership type: Private
• Headquarters: Washington, D.C., District Of Columbia, United States (USA)
• Founded year: 2021
• Headcount: 51-200
• LinkedIn: alder-fuels

Alder Renewables, founded in 2021 and based in Washington, D.C., is a private company dedicated to advancing renewable energy solutions. The firm specializes in producing sustainable fuels and bio-based chemicals from biomass, targeting sectors such as energy, aviation, and transportation. Their flagship technology, Alder Renewable Crude (ARC), allows for the scalable production of low-carbon alternatives to fossil fuels, including sustainable aviation fuel (SAF) and low-carbon marine and transport fuels. Alder's technology is adaptable, utilizing a variety of biomass sources, including agricultural residues and purpose-grown energy crops. The company has established partnerships with industry leaders like Honeywell UOP and United Airlines Ventures, and their technology has been tested at the Department of Energy’s National Renewable Energy Laboratory (NREL). This involvement underscores their commitment to innovation and sustainability in the bioenergy sector.

23. SGTech - Zero Carbon, Sustainable Farming

• Website: sgtech.co.il
• Ownership type: Venture Capital
• Headquarters: Netanya, Center, Israel
• Employee distribution: Israel 100%
• Latest funding: Series A, $7.0M, January 2019
• Founded year: 2015
• Headcount: 11-50
• LinkedIn: sgtech.co.il

SGTech - Zero Carbon, Sustainable Farming, founded in 2015 and based in Netanya, Israel, is a venture capital-backed company focused on renewable energy solutions. The firm specializes in biogas production and nutrient recovery from agricultural and municipal waste. SGTech employs innovative technologies, including an Integrated Ecosystem Solution (IES) and precision microbiome management, to enhance the efficiency of anaerobic digestion processes. Their in-house laboratory supports ongoing research and development, allowing them to refine their methods and develop new solutions. With a team of experts in R&D, engineering, and biochemistry, SGTech aims to provide sustainable waste treatment solutions that not only generate renewable energy but also improve soil health and reduce environmental pollution. The company has successfully raised $7 million in funding, which underscores its potential for growth and innovation in the bioenergy sector.

24. DMT Environmental Technology

• Website: dmt-et.com
• Ownership type: Corporate
• Headquarters: Joure, Friesland, Netherlands
• Employee distribution: Netherlands 96%, United States (USA) 2%, India 2%
• Latest funding: May 2021
• Founded year: 1987
• Headcount: 51-200
• LinkedIn: dmt-environmental-technology

DMT Environmental Technology, based in Joure, Friesland, Netherlands, is an environmental technology firm that specializes in renewable gas solutions. Founded in 1987, the company has carved out a niche in biogas upgrading and gas desulphurization, providing technologies that transform waste into valuable biomethane. DMT's innovative approach includes the use of membrane technology for biogas upgrading, which allows for efficient separation of methane from carbon dioxide. This technology is crucial for various industries, including agriculture and wastewater treatment. DMT operates globally, with a significant presence in Europe, North America, and Asia, and has established over 195 operational sites. Their commitment to sustainability is evident in their mission to create a cleaner environment through renewable energy solutions. DMT also offers 24/7 service support, ensuring that their clients receive continuous assistance in optimizing their biogas projects.

25. Zilor

• Website: zilor.com.br
• Ownership type: Private
• Headquarters: Sao Paulo, Sao Paulo, Brazil
• Employee distribution: Brazil 100%
• Founded year: 1946
• Headcount: 1001-5000
• LinkedIn: zilor

Zilor, founded in 1946, is a Brazilian company based in São Paulo that specializes in the sugar and ethanol industry. With a workforce of approximately 2,435 employees, Zilor processes sugarcane to produce sugar, ethanol, and renewable energy. The company operates through its Biorigin unit, which is dedicated to providing natural ingredients for food and animal nutrition. Zilor's operations span across three agro-industrial units in São Paulo, where they employ mechanized harvesting and sustainable agricultural practices. The company exports around 90% of its production to over 60 countries, emphasizing its global reach. Zilor is also a significant player in the renewable energy sector, generating electricity from biomass, which contributes to its commitment to sustainability and environmental responsibility.

26. Weltec Biopower

• Website: weltec-biopower.com
• Ownership type: Private Equity
• Headquarters: Vechta, Lower Saxony, Germany
• Employee distribution: Germany 94%, United Kingdom (UK) 6%
• Latest funding: October 2023
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: weltec-biopower-gmbh

Weltec Biopower, founded in 2001 and based in Vechta, Lower Saxony, Germany, is a private equity company that specializes in biogas technology. The firm focuses on the construction and operation of biogas and biomethane plants, providing solutions that convert organic waste into renewable energy. Weltec serves a variety of sectors, including waste management, agriculture, and food processing, offering services that range from plant construction to maintenance and energy contracting. With a workforce of approximately 66 employees, the company has successfully implemented over 350 energy plants in more than 25 countries across five continents. Their commitment to sustainability and innovation is evident in their ongoing projects and technological advancements in biogas production and utilization.

27. De Smet Engineers & Contractors (DSEC)

• Website: dsengineers.com
• Ownership type: Private
• Headquarters: Mont-Saint-Guibert, Wallonia, Belgium
• Employee distribution: Belgium 46%, India 40%, Other 14%
• Founded year: 1989
• Headcount: 51-200
• LinkedIn: dsec

De Smet Engineers & Contractors (DSEC), founded in 1989 and based in Mont-Saint-Guibert, Belgium, is a private engineering and construction firm that specializes in the agro-industrial sector. The company provides a comprehensive range of services, including audits, engineering studies, and turnkey project management. DSEC has carved out a niche in sugar production, biofuels, and chemical manufacturing, catering primarily to businesses looking to enhance their production processes and adopt sustainable practices. Their portfolio includes significant projects in bioenergy, such as bioethanol plants and biomass cogeneration facilities. DSEC's focus on energy efficiency and the transition to renewable energy sources further underscores their commitment to sustainable development in the bioenergy field. With a workforce of around 333 employees, the company operates not only in Belgium but also has a substantial presence in India and other regions, reflecting its global reach and expertise in the industry.

28. Virent, Inc

• Website: virent.com
• Ownership type: Corporate
• Headquarters: Madison, Wisconsin, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: September 2016
• Founded year: 2002
• Headcount: 11-50
• LinkedIn: virent-inc

Virent, Inc. is a renewable energy company based in Madison, Wisconsin, founded in 2002. The company focuses on producing renewable fuels and bio-based chemicals through its proprietary BioForming technology, which converts plant sugars into sustainable alternatives for gasoline, diesel, and various chemicals. Virent's innovative approach allows for the creation of 'drop-in' fuels that can seamlessly integrate into existing infrastructure, making them compatible with current engines and fuel systems. Their product offerings include renewable gasoline, sustainable aviation fuel (SAF), and renewable chemicals that can be used in textiles and plastics. Virent has established partnerships with notable companies such as Marathon Petroleum Corporation, BP, and Johnson Matthey, which underscores its active engagement in the bioenergy sector. The company has demonstrated its technology at a pilot scale and continues to explore commercial opportunities in the renewable energy market.

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