The renewable energy consultancy industry focuses on aiding clients in the transition from traditional energy sources to cleaner alternatives. Companies in this field provide expertise in energy efficiency, sustainability practices, and regulatory compliance. Their work supports various projects, such as wind, solar, and hydro power developments. With growing global concern over climate change, the demand for consultancy services is expected to rise, driving innovation and collaboration. Notably, consultancies also play a role in shaping policies and helping organizations meet increasingly strict environmental regulations, showcasing their vital role in determining future energy strategies.


This list features 25 consultancy firms specializing in renewable energy, ranging from small teams to large corporations. The companies span various countries, with notable presences in regions such as the Netherlands, USA, and Germany. Founded from 1922 to 2016, they bring a depth of experience across sectors like policy development, project management, and energy advisory services. Key players like Ecofys and Natural Power specialize in optimizing renewable assets and enhancing sustainability practices, reflecting a commitment to addressing energy challenges comprehensively.


Read on to discover the top renewable energy consultancy companies.


Top 25 Renewable Energy Consultancy Companies


1. Ecofys

  • Website: ecofys.com
  • Ownership type: Corporate
  • Headquarters: Utrecht, Utrecht, Netherlands
  • Employee distribution: United States (USA) 100%
  • Latest funding: November 2016
  • Founded year: 1984
  • Headcount: 51-200
  • LinkedIn: ecofys

Ecofys, based in Utrecht, Netherlands, is an international consultancy firm that focuses on energy and sustainability. Founded in 1984, the company has built a reputation for providing expert consulting services to a wide range of clients, including utilities, energy companies, government agencies, NGOs, and large corporations. Their work primarily revolves around helping these entities navigate the complexities of energy transitions and develop effective climate strategies. In November 2016, Ecofys became part of Guidehouse, which has allowed them to enhance their capabilities and collaborate with a larger team of experts in the energy sector. This integration has positioned Ecofys to address significant energy challenges and support clients in adapting to a rapidly changing energy environment.


2. Fichtner

  • Website: fichtner.de
  • Ownership type: Private
  • Headquarters: Stuttgart, Baden-Württemberg, Germany
  • Employee distribution: Germany 59%, India 8%, Saudi Arabia 8%, Other 25%
  • Founded year: 1922
  • Headcount: 1001-5000
  • LinkedIn: fichtner

Fichtner GmbH & Co. KG, based in Stuttgart, Germany, is an engineering and consulting firm that has been operational since 1922. With a workforce of approximately 1,471 employees, the company specializes in energy and infrastructure projects. Fichtner offers a broad spectrum of services, including energy consulting, environmental management, and project management. Their expertise extends to renewable energy sectors, where they provide consulting for wind, solar, hydropower, and biomass projects. The firm is actively involved in helping clients achieve energy efficiency and navigate the challenges of decarbonization. Fichtner's projects span across various countries, showcasing their capability to handle complex energy initiatives on a global scale. Their recent focus on hydrogen technology and compliance with EU taxonomies highlights their commitment to advancing sustainable energy solutions.


3. Natural Power

  • Website: naturalpower.com
  • Ownership type: Private
  • Headquarters: Castle Douglas, Scotland, United Kingdom (UK)
  • Employee distribution: United Kingdom (UK) 75%, United States (USA) 12%, France 9%, Other 4%
  • Founded year: 1995
  • Headcount: 501-1000
  • LinkedIn: natural-power

Natural Power is a consulting firm based in Castle Douglas, Scotland, specializing in renewable energy solutions. Established in 1995, the company has built a reputation for providing a wide array of services tailored to the renewable energy sector. These services include advisory, engineering, project management, and asset optimization, aimed at helping clients navigate the complexities of renewable energy projects. Natural Power operates globally, with a significant presence in the UK, USA, France, and Ireland, employing around 551 professionals. The firm is dedicated to supporting clients in various sectors, including onshore and offshore wind, solar, hydro, and energy storage. Their expertise not only aids in project development but also ensures compliance with environmental regulations and enhances the performance of renewable energy assets. Natural Power's commitment to green energy is evident in their operational philosophy, as they exclusively work on projects that contribute to sustainable energy solutions.


4. Pondera Consult

  • Website: ponderaconsult.com
  • Ownership type: Corporate
  • Headquarters: Arnhem, Gelderland, Netherlands
  • Employee distribution: Netherlands 84%, Indonesia 8%, Other 8%
  • Latest funding: February 2023
  • Founded year: 2007
  • Headcount: 51-200
  • LinkedIn: pondera-consult

Pondera Consult, based in Arnhem, Gelderland, Netherlands, is a consulting firm that specializes in renewable energy. Established in 2007, the company has grown to employ between 51 and 200 professionals, with a significant portion of its workforce based in the Netherlands. Pondera offers a comprehensive range of services aimed at facilitating the energy transition, including feasibility studies, environmental impact assessments, project management, and financial advisory services. Their projects span various locations, showcasing their international reach and expertise. Notably, Pondera has contributed to significant renewable energy initiatives, such as the development of offshore wind farms and energy storage solutions. Their commitment to providing tailored solutions to complex energy challenges positions them as a valuable partner in the renewable energy sector.


5. Energy Futures Group

  • Website: energyfuturesgroup.com
  • Ownership type: Private
  • Headquarters: Hinesburg, Vermont, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: Other (Grant), $1.7M, November 2017
  • Founded year: 2010
  • Headcount: 11-50
  • LinkedIn: energy-futures-group

Energy Futures Group (EFG), based in Hinesburg, Vermont, is a consulting firm founded in 2010 that specializes in clean energy solutions. With a team of 16 experienced professionals, EFG focuses on policy development, energy planning, analysis, program design, and implementation. Their clients range from government agencies to industry leaders, all seeking to improve energy efficiency and adopt renewable energy strategies. EFG has been involved in various projects across the U.S. and Canada, contributing to significant advancements in energy efficiency and decarbonization policies. The firm has also received funding, including a notable grant of $1.7 million in 2017, which underscores their active role in the clean energy sector. EFG's mission is to transform the energy system into one that is clean, efficient, and equitable, reflecting their commitment to addressing critical energy challenges.


6. SgurrEnergy

  • Website: sgurrenergy.com
  • Ownership type: Corporate
  • Headquarters: Pune, Maharashtra, India
  • Employee distribution: India 95%, Kenya 2%, Other 3%
  • Latest funding: September 2010
  • Founded year: 2002
  • Headcount: 51-200
  • LinkedIn: sgurrenergyindiapvtltd

SgurrEnergy, established in 2002, is a renewable energy consultancy based in Pune, Maharashtra, India. The company specializes in engineering and project management services across various sectors, including solar, wind, and energy storage. With a workforce of approximately 169 employees, SgurrEnergy has made significant strides in the renewable energy industry, having contributed to over 160GW of renewable energy projects globally. Their services range from feasibility studies and bankability assessments to detailed engineering and project management. SgurrEnergy has also expanded its operations internationally, with offices in regions such as Saudi Arabia and the United States. The company is recognized for its technical proficiency and has received multiple awards for its contributions to solar energy consulting. SgurrEnergy's commitment to environmental sustainability and its proactive approach to addressing climate risks further enhance its standing in the renewable energy consultancy sector.


7. Niras

  • Website: niras.com
  • Ownership type: Private
  • Headquarters: Glostrup, Glostrup, Denmark
  • Employee distribution: Denmark 77%, Sweden 8%, Norway 4%, Other 11%
  • Founded year: 1956
  • Headcount: 1001-5000
  • LinkedIn: niras

Niras is a multi-disciplinary engineering consultancy based in Glostrup, Denmark, founded in 1956. With a workforce of approximately 3,800 employees, the company specializes in sustainable development solutions across various sectors, including energy, environment, and digitalization. Niras provides consulting services that help businesses and organizations tackle complex challenges and achieve their sustainability goals. Their expertise in renewable energy is notable, as they have been involved in projects related to solar energy, offshore wind, and biofuels, among others. Niras also engages in energy planning and design, assisting clients with the integration of renewable energy into existing systems. Their commitment to sustainability is further highlighted by their initiative to invest a portion of their profits into green energy projects, showcasing their dedication to the green transition.


8. GK Global

  • Website: gkglobal.com
  • Ownership type: Private
  • Headquarters: San Pedro Sula, Cortés, Honduras
  • Employee distribution: Honduras 66%, Mexico 22%, Guatemala 5%, Other 7%
  • Founded year: 1991
  • Headcount: 10001+
  • LinkedIn: gkglobaloficial

GK Global is a private multinational corporation based in San Pedro Sula, Honduras, founded in 1991. With a workforce of over 10,000 employees, the company operates primarily in manufacturing and consulting services. GK Global has made significant strides in renewable energy solutions, with 60% of its energy capacity sourced from renewables. The company actively promotes sustainability and corporate social responsibility, having planted over 100,000 trees and achieving near-total recycling of its waste. Their initiatives include helping businesses adopt renewable energy strategies, which positions them as a player in the consultancy space, particularly in guiding companies toward sustainable practices. Their operations extend across Central America and into the United States and the UAE, reflecting a regional influence in promoting renewable energy adoption.


9. Owc

  • Website: owcltd.com
  • Ownership type: Corporate
  • Headquarters: London, England, United Kingdom (UK)
  • Employee distribution: United Kingdom (UK) 47%, Taiwan 7%, United States (USA) 7%, Other 39%
  • Latest funding: June 2019
  • Founded year: 2011
  • Headcount: 51-200
  • LinkedIn: offshorewindconsultants

OWC, established in 2011 and headquartered in London, is a consultancy firm dedicated to renewable energy solutions. The company has carved out a niche in the renewable energy sector, offering a wide range of services including engineering, technical due diligence, and market studies. OWC has a strong focus on offshore and onshore wind, solar energy, energy storage, and hydrogen projects. With a track record of over 900 projects in more than 40 countries, OWC supports clients from initial market analysis through to project development and construction. Their clientele includes developers and financial institutions, all seeking to enhance the viability and efficiency of renewable energy initiatives. OWC operates globally, leveraging its expertise to facilitate the energy transition and drive sustainable practices in the industry.


10. Portal Resources Ltd.


Portal Resources Ltd., based in Calgary, Alberta, Canada, is a private consultancy firm established in 1999. With a small team of 1-10 employees, the company specializes in renewable energy consultancy, focusing on assisting businesses in their transition to 100% renewable energy. Their services include detailed energy evaluations and comprehensive reporting, which help clients identify viable renewable energy solutions tailored to their specific needs. The firm primarily serves businesses aiming to improve their sustainability practices, making them a relevant player in the renewable energy sector. Although they have not reported any funding, their commitment to promoting renewable energy solutions positions them as a valuable resource for companies looking to enhance their environmental impact.


11. Tradition Energy

  • Website: traditionenergy.com
  • Ownership type: Private
  • Headquarters: Stamford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 79%, Singapore 10%, United Kingdom (UK) 5%, Other 6%
  • Founded year: 1986
  • Headcount: 201-500
  • LinkedIn: tradition-energy

Tradition Energy, based in Stamford, Connecticut, is an energy consulting firm that has been active since 1986. The company specializes in energy risk management, procurement, and sustainability solutions, catering to a wide range of clients including commercial, industrial, and governmental organizations. With a workforce of approximately 131 employees, Tradition Energy leverages its extensive market knowledge to assist clients in managing energy costs and implementing effective renewable energy strategies. They have managed over 124 billion kWh in energy usage and more than $131 billion in energy spend, showcasing their significant impact in the energy sector. Tradition Energy is also part of the Tradition Group, which operates globally in financial products and commodities, further enhancing their market presence. Their commitment to sustainability is evident in their offerings, which include on-site and community solar solutions, virtual power purchasing agreements, and energy efficiency initiatives. The firm has a proven track record of delivering substantial savings for clients, exemplified by their work with various municipalities and organizations to achieve significant cost reductions through renewable energy initiatives.


12. Je2d

  • Website: je2d.fr
  • Ownership type: Private
  • Headquarters: Boves, Hauts-De-France, France
  • Employee distribution: France 89%, Italy 11%
  • Founded year: 2016
  • Headcount: 11-50
  • LinkedIn: je2d

Je2d, officially known as Groupe JE2D, is an energy consulting firm based in Boves, Hauts-De-France, France. Founded in 2016, the company has grown to employ between 11 and 50 professionals, primarily serving clients in France and Italy. Je2d specializes in energy optimization and efficiency solutions, offering a range of services such as energy audits, contract optimization, and support for renewable energy projects. Their mission is to assist agricultural producers, industrial clients, and businesses in the tertiary sector in reducing energy costs and transitioning to sustainable energy practices. The firm has developed two brands: EnerBIOFlex, focusing on agricultural and biogas projects, and JE2D, which caters to larger energy-consuming sectors. With over 1,000 clients served, including more than 650 farmers and numerous industrial and tertiary clients, Je2d is actively involved in promoting energy efficiency and renewable energy production, including solar and biomass projects. Their commitment to a sustainable future is reflected in their ambition to support a significant number of energy transition initiatives in the coming years.


13. C2R Energy Consulting


C2R Energy Consulting S.r.l., based in Turin, Italy, is an energy consulting firm founded in 2015. With a team of 18 professionals, the company focuses on providing innovative solutions for sustainability and energy efficiency. C2R serves a range of clients, including businesses and public entities, assisting them in navigating complex regulatory environments and optimizing their energy management strategies. Their services include technical consulting, regulatory compliance, and strategic planning across various sectors such as industrial production, environmental management, and sustainable construction. C2R is particularly active in promoting renewable energy initiatives, helping clients access incentives for solar energy projects and supporting the development of energy communities. Their commitment to practical solutions and corporate responsibility reflects a strong alignment with the goals of the renewable energy sector.


14. TTA - Trama TecnoAmbiental

  • Website: tta.com.es
  • Ownership type: Private
  • Headquarters: Barcelona, Catalonia, Spain
  • Employee distribution: Spain 80%, Ethiopia 4%, Niger 4%, Other 12%
  • Founded year: 1986
  • Headcount: 51-200
  • LinkedIn: trama-tecnoambiental

TTA - Trama TecnoAmbiental, based in Barcelona, Spain, is a consulting and engineering firm dedicated to sustainable energy development. Since its inception in 1986, TTA has focused on transforming energy usage by promoting renewable energy sources and enhancing energy efficiency. The company provides a wide range of services, including energy audits, feasibility studies, and the design and implementation of renewable energy projects. TTA has been involved in numerous international projects, working with public entities and private organizations to improve energy access in various regions, including Africa, Latin America, and Asia. Their expertise extends to electric microgrids, photovoltaic plants, and sustainable building practices. TTA has also been recognized for its innovative technology in rural electrification and has received accolades for its contributions to the field. With a commitment to addressing climate change and fostering energy independence, TTA continues to play a vital role in the renewable energy sector.


15. Plan Energy


Plan Energy, based in Sligo, Ireland, is a private consulting firm founded in 2009. The company specializes in renewable energy solutions and decarbonization strategies, offering a range of services that include energy audits, project management, and feasibility studies. With a team of 23 employees, Plan Energy focuses on helping both public and private sector clients improve energy efficiency and achieve sustainability objectives. Their expertise extends to navigating regulatory frameworks and implementing energy-saving measures. Notable projects include wind farm feasibility studies and community retrofitting initiatives, showcasing their commitment to advancing renewable energy practices. Plan Energy's approach is characterized by a thorough understanding of energy management systems and compliance with energy efficiency standards, making them a valuable partner for organizations aiming to reduce their carbon footprint.


16. Cornwall Insight

  • Website: cornwall-insight.com
  • Ownership type: Private Equity
  • Headquarters: Norwich, England, United Kingdom (UK)
  • Employee distribution: United Kingdom (UK) 100%
  • Latest funding: June 2022
  • Founded year: 2005
  • Headcount: 51-200
  • LinkedIn: cornwall-energy

Cornwall Insight, founded in 2005 and based in Norwich, England, is a consultancy firm dedicated to the energy sector. With a workforce of around 116 employees, the company offers a range of services including analysis, consultancy, training, and modeling. Their clientele spans energy suppliers, renewable energy developers, and government departments, all seeking expert guidance to navigate the complexities of the energy market. Cornwall Insight is particularly focused on supporting the transition to net zero, providing insights and strategies that help organizations align with sustainability goals. They are recognized for their in-depth industry knowledge and have been acknowledged as one of the top management consultancies in the energy, utilities, and environment sector by the Financial Times. The firm is committed to reducing its own emissions, aiming for net zero by 2035, which reflects their dedication to the principles of sustainability and environmental responsibility.


17. Firstgreen Consulting Pvt Ltd


Firstgreen Consulting Pvt Ltd, based in Gurugram, Haryana, India, is a consulting firm that specializes in renewable energy and sustainability solutions. Founded in 2010, the company offers a range of services including solar advisory, energy efficiency consulting, and green building certifications. They cater primarily to businesses and organizations aiming to enhance their environmental performance and meet sustainability objectives. Firstgreen Consulting has developed a strong reputation for its expertise in solar power projects, providing end-to-end services from feasibility studies to project management. Their team consists of certified professionals in various fields, ensuring high standards in their consulting practices. The firm has successfully completed numerous projects, demonstrating their capability and commitment to advancing sustainability in the built environment.


18. Green Energy Venture AG


Green Energy Venture AG, based in Lyssach, Bern, Switzerland, is a private consulting firm founded in 2006. The company specializes in renewable energy solutions, offering a comprehensive suite of services that includes market intelligence, technical advisory, project management, and energy advisory services. With a team of approximately 26 employees, they focus on assisting clients in navigating complex energy projects and achieving their sustainability objectives. Their expertise spans various renewable technologies, including wind, photovoltaics, hydro, and biomass. Green Energy Venture AG is dedicated to providing tailored solutions that meet the specific needs of developers, investors, and local authorities, thereby promoting a more sustainable energy future.


19. Witzler | Ultragaz

  • Website: witzler.com.br
  • Ownership type: Private
  • Headquarters: Bauru, Sao Paulo, Brazil
  • Employee distribution: Brazil 100%
  • Founded year: 2010
  • Headcount: 51-200
  • LinkedIn: witzler-energia

Witzler | Ultragaz, based in Bauru, São Paulo, Brazil, is a private consulting firm founded in 2010. The company specializes in energy solutions, offering a range of services that include energy consulting, efficiency solutions, and access to renewable energy sources. With a workforce of approximately 142 employees, Witzler | Ultragaz serves a variety of sectors, helping businesses optimize their energy consumption and reduce costs. They are particularly noted for their role in the Mercado Livre de Energia, which allows companies to choose their energy suppliers freely, promoting the use of clean and renewable energy. The firm also provides certifications for companies that utilize 100% renewable energy, further enhancing their commitment to sustainability. Witzler | Ultragaz has positioned itself as a significant player in the Brazilian energy market, focusing on innovative strategies that align with environmental goals.


20. ETA-Florence Renewable Energies


ETA-Florence Renewable Energies, based in Florence, Italy, is a consultancy firm established in 1994. With a team of 25 employees, the company specializes in renewable energy technologies and offers a range of services including strategic consulting, communication, and event management. They have successfully delivered over 300 projects and organized more than 250 events, showcasing their commitment to advancing sustainability. ETA-Florence is actively involved in several Horizon-funded projects, collaborating with the European Commission and various international organizations. Their expertise spans areas such as bioenergy, solar energy, and energy efficiency, making them a valuable resource for businesses and organizations aiming to achieve their environmental goals.


21. Exoceth

  • Website: exoceth.fr
  • Ownership type: Private
  • Headquarters: Guer, Brittany, France
  • Employee distribution: France 100%
  • Founded year: 2003
  • Headcount: 11-50
  • LinkedIn: exoceth-w%26es

Exoceth, founded in 2003 and based in Guer, Brittany, France, is an engineering consultancy that specializes in renewable energy and energy efficiency. With a team of experienced engineers and technicians, Exoceth offers a range of services including energy audits, feasibility studies, project management, and technical assistance. The company has shifted its focus over the years from traditional industrial processes to renewable energy solutions, reflecting a commitment to sustainability. Exoceth operates through a network of offices across various regions in France, ensuring they can provide localized support to their clients. Their projects include the design and implementation of biomass heating systems, solar energy installations, and energy recovery systems. Exoceth is certified by OPQIBI, which underscores their adherence to quality standards in engineering services. They also hold the HQE Bâtiment Durable certification, indicating their dedication to high environmental quality in building projects. This combination of expertise and commitment positions Exoceth as a significant player in the renewable energy consultancy sector.


22. Elemental Group Limited

  • Website: elementalgroup.com
  • Ownership type: Private
  • Headquarters: New Plymouth, Taranaki, New Zealand
  • Employee distribution: New Zealand 100%
  • Founded year: 2011
  • Headcount: 11-50
  • LinkedIn: elemental-group-limited

Elemental Group Limited is an energy consultancy and development advisory firm based in New Plymouth, New Zealand. Founded in 2011, the company has carved out a niche in the energy sector by focusing on consultancy services related to energy transition, decarbonization, and renewable energy development. With a team of around 20 employees, Elemental Group works with businesses and organizations to provide tailored solutions that promote sustainable energy practices. Their consultancy services span various sectors, including power and renewables, environmental sustainability, and energy efficiency. The firm is dedicated to facilitating renewable energy projects that not only generate green energy but also deliver tangible benefits to local communities. Elemental Group operates with a vision of a carbon-zero future, emphasizing the importance of energy equity and environmental stewardship in all their initiatives.


23. 360 Energy Group

  • Website: 360eg.com
  • Ownership type: Private
  • Headquarters: Chicago, Illinois, United States (USA)
  • Employee distribution: United Kingdom (UK) 82%, United States (USA) 18%
  • Founded year: 2007
  • Headcount: 11-50
  • LinkedIn: 360-energy-group

360 Energy Group, based in Chicago, Illinois, is an energy consulting firm established in 2007. The company specializes in energy efficiency and renewable energy solutions, assisting both public and private building owners, energy utilities, and government agencies. Their mission is to optimize energy resources, helping clients reduce costs and enhance sustainability. With over 100 years of collective experience in the energy sector, the firm offers a range of services, including program design and implementation, energy engineering, and management consulting. They have partnered with institutions like the University of Illinois at Urbana-Champaign to conduct applied research, further solidifying their role in the industry. Their projects vary from simple energy audits to comprehensive studies aimed at lowering greenhouse gas emissions and reducing peak electric demand. 360 Energy Group has successfully completed numerous energy efficiency projects across various municipalities, showcasing their commitment to improving energy practices.


24. BVG Associates

  • Website: bvgassociates.com
  • Ownership type: Private
  • Headquarters: United States (USA)
  • Employee distribution: United Kingdom (UK) 100%
  • Founded year: 2006
  • Headcount: 11-50
  • LinkedIn: bvg-associates

BVG Associates is a private consulting firm based in the United Kingdom, with a presence in the United States. Established in 2006, the company has carved out a niche in the renewable energy sector, focusing primarily on wind energy and energy systems. Their team comprises experienced professionals who have been part of the wind energy industry since its inception as a commercial sector. BVG Associates provides strategic consulting services to a variety of clients, including businesses and organizations looking to invest in sustainable energy solutions. They are known for their rigorous approach to consulting, combining deep industry knowledge with practical business insights. The firm has also published numerous reports that address critical issues in the renewable energy space, such as cost of energy and supply chain dynamics. BVG Associates is ISO 9001:2015 certified, underscoring their commitment to quality and excellence in their consulting practices.


25. Energy Solutions

  • Website: energy-solution.com
  • Ownership type: Corporate
  • Headquarters: Oakland, California, United States (USA)
  • Employee distribution: United States (USA) 93%, Other 7%
  • Latest funding: February 2015
  • Founded year: 1995
  • Headcount: 201-500
  • LinkedIn: energy-solutions

Energy Solutions, based in Oakland, California, is a consulting firm established in 1995 that specializes in energy efficiency and sustainability. With a workforce of approximately 709 employees, the company has built a reputation for its expertise in building decarbonization, demand management, and program design. They assist utilities and organizations in reducing their environmental impact by navigating complex regulatory requirements and implementing effective energy solutions. Over the years, Energy Solutions has designed and led numerous programs that have resulted in substantial carbon, energy, and water savings. Their initiatives have contributed to the reduction of millions of tons of greenhouse gas emissions, showcasing their commitment to combating climate change. The firm also emphasizes the importance of clean transportation and the integration of renewable energy resources, further highlighting their role in the renewable energy consultancy space.



Renewable Energy Consultancy Insights: Key Companies


CompanyHeadquarterSizeFoundedOwnership
EcofysUtrecht, Utrecht, Netherlands51-2001984Corporate
FichtnerStuttgart, Baden-Württemberg, Germany1001-50001922Private
Natural PowerCastle Douglas, Scotland, United Kingdom (UK)501-10001995Private
Pondera ConsultArnhem, Gelderland, Netherlands51-2002007Corporate
Energy Futures GroupHinesburg, Vermont, United States (USA)11-502010Private
SgurrEnergyPune, Maharashtra, India51-2002002Corporate
NirasGlostrup, Glostrup, Denmark1001-50001956Private
GK GlobalSan Pedro Sula, Cortés, Honduras10001+1991Private
OwcLondon, England, United Kingdom (UK)51-2002011Corporate
Portal Resources Ltd.Calgary, Alberta, Canada1-101999Private
Tradition EnergyStamford, Connecticut, United States (USA)201-5001986Private
Je2dBoves, Hauts-De-France, France11-502016Private
C2R Energy ConsultingTurin, Piedmont, Italy11-502015Private
TTA - Trama TecnoAmbientalBarcelona, Catalonia, Spain51-2001986Private
Plan EnergySligo, Sligo, Ireland11-502009Private
Cornwall InsightNorwich, England, United Kingdom (UK)51-2002005Private Equity
Firstgreen Consulting Pvt LtdGurugram, Haryana, India11-502010Private
Green Energy Venture AGLyssach, Bern, Switzerland51-2002006Private
Witzler | UltragazBauru, Sao Paulo, Brazil51-2002010Private
ETA-Florence Renewable EnergiesFlorence, Tuscany, Italy11-501994Private
ExocethGuer, Brittany, France11-502003Private
Elemental Group LimitedNew Plymouth, Taranaki, New Zealand11-502011Private
360 Energy GroupChicago, Illinois, United States (USA)11-502007Private
BVG AssociatesUnited States (USA)11-502006Private
Energy SolutionsOakland, California, United States (USA)201-5001995Corporate


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