The green building industry in the US focuses on designing and constructing structures that minimize environmental impacts while maximizing efficiency. This sector spans various activities, from architecture and construction to consulting and product development. Companies tackle challenges like energy management, sustainable materials, and eco-friendly practices, ultimately fostering healthier living and working environments. As sustainability continues to dominate the conversation, an increasing number of firms are adopting advanced technologies and innovative materials, making strides towards achieving zero-carbon construction. In essence, this industry is evolving rapidly, influencing shifts towards eco-friendly solutions in urban planning and real estate.

This listing features 21 prominent green building companies in the US, spanning a range of specialties including architecture, construction, and sustainability consulting. Ranging in size from small firms with fewer than 50 employees to larger players boasting over 5,000 staff, these companies are headquartered in locations from Portland to New York City, with founding years extending from 1942 to 2018. Their services encompass high-performance building design, energy management, and green certification, reflecting their commitment to addressing the essential principles of sustainable development in today’s built environment.

Read on to explore the top green building companies in the US.

Top 21 Green Building Companies Companies in the US

1. Green Hammer Design Build

• Website: greenhammer.com
• Ownership type: Private
• Headquarters: Portland, Oregon, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2002
• Headcount: 11-50
• LinkedIn: green-hammer-inc.

Green Hammer Design Build is a Portland, Oregon-based sustainable construction company that has been operational since 2002. With a team of 11 to 50 employees, the firm specializes in high-performance building and green architecture. They offer a variety of services aimed at creating energy-efficient and healthy living environments, including resilience action planning and consulting for homeowners, businesses, and organizations. Green Hammer is committed to integrating eco-friendly practices throughout the design and construction process. The company has achieved several prestigious certifications, including LEED Platinum and Passive House, and has been involved in notable projects such as the Cowhorn Vineyard & Garden, which is recognized as a Living Building Challenge-certified facility. Additionally, Green Hammer is a Certified B Corporation, reflecting its commitment to social and environmental responsibility. Their focus on healthy materials, indoor air quality, and water conservation further highlights their dedication to sustainable building practices.

2. McKinstry

• Website: mckinstry.com
• Ownership type: Venture Capital
• Headquarters: Seattle, Washington, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Seed, $534,000, April 2015
• Founded year: 1960
• Headcount: 1001-5000
• LinkedIn: mckinstry

McKinstry is a construction services firm based in Seattle, Washington, founded in 1960. The company specializes in building operations, energy management, and sustainable solutions, providing a comprehensive suite of services aimed at improving energy efficiency and facility management for businesses and organizations. With a workforce of over 2,000 employees, McKinstry has established itself as a key player in the construction industry, focusing on transforming the built environment through innovative practices. Their commitment to sustainability is evident in initiatives like the Zero+ commitment, which outlines their pathway to achieving zero-carbon outcomes. McKinstry also engages in various projects that highlight their expertise in energy services, solar and renewable energy systems, and eco-district services, showcasing their dedication to creating healthier, more efficient spaces.

3. ZGF Architects

• Website: zgf.com
• Ownership type: Family Owned
• Headquarters: Portland, Oregon, United States (USA)
• Employee distribution: United States (USA) 92%, Canada 8%
• Founded year: 1942
• Headcount: 501-1000
• LinkedIn: zgf-architects

ZGF Architects, founded in 1942 and based in Portland, Oregon, is a family-owned architecture firm that specializes in sustainable design and urban planning. With a workforce of approximately 893 employees, ZGF operates multiple offices across North America, including locations in Denver, Los Angeles, New York, Seattle, Vancouver, and Washington, D.C. The firm is recognized for its focus on community engagement and environmental stewardship, catering to a variety of sectors such as education, healthcare, and government. ZGF has been at the forefront of sustainable architecture, embracing eco-friendly practices long before they became mainstream. Their projects often incorporate innovative materials and techniques aimed at reducing both embodied and operational carbon. ZGF is also committed to social equity, actively engaging in initiatives that promote diversity and inclusion within the architecture profession. Their work reflects a holistic understanding of the relationship between buildings, people, and the environment, making them a significant contributor to the green building movement.

4. Kirksey Architecture

• Website: kirksey.com
• Ownership type: Private
• Headquarters: Houston, Texas, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1971
• Headcount: 201-500
• LinkedIn: kirksey

Kirksey Architecture, founded in 1971, is an architectural firm based in Houston, Texas, with additional offices in Austin and Dallas. The firm has grown from a small operation into a robust practice with around 269 employees. Kirksey Architecture is known for its commitment to sustainable design and health-conscious buildings, providing a range of services that include architectural design, sustainable consulting, and green building certification. They focus on creating high-performing, resource-efficient spaces that positively impact the environment and the communities they serve. Their portfolio spans various sectors, including healthcare, education, and commercial projects, showcasing their ability to integrate sustainability into diverse building types. Kirksey Architecture also emphasizes the importance of collaboration and innovation in their design process, ensuring that each project meets the highest standards of performance and sustainability.

5. The Beck Group

• Website: beckgroup.com
• Ownership type: Corporate
• Headquarters: Dallas, Texas, United States (USA)
• Employee distribution: United States (USA) 89%, Mexico 11%
• Latest funding: February 2024
• Founded year: 1912
• Headcount: 501-1000
• LinkedIn: the-beck-group

The Beck Group is a construction and architecture firm based in Dallas, Texas, founded in 1912. With a workforce of over 1,000 employees, the company specializes in providing integrated design and construction services tailored to real estate developers, corporations, and various organizations. Their approach combines architecture and construction expertise, allowing them to deliver innovative solutions that enhance project outcomes. The Beck Group places a strong emphasis on sustainability, integrating eco-friendly practices into their projects and operations. They have a broad portfolio that includes various sectors such as healthcare, education, and civic projects, showcasing their ability to adapt to different client needs while maintaining a focus on sustainable building practices. The company also engages in community initiatives through the Beck Foundation, which addresses issues like affordable housing and workforce development, further solidifying their commitment to making a positive impact in the communities they serve.

6. Brightworks Sustainability

• Website: brightworks.net
• Ownership type: Private
• Headquarters: Portland, Oregon, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: brightworks-sustainability-advisors

Brightworks Sustainability, founded in 2001 and based in Portland, Oregon, is a consulting firm that specializes in sustainability and ESG practices. With a team of around 62 professionals, the company offers a wide range of services, including decarbonization strategies, energy management, and green building consulting. Brightworks has established itself as a key player in the sustainability consulting sector, helping businesses and organizations across various industries to improve their environmental impact and operational performance. Their expertise in sustainable built environments includes green building certifications, energy analysis, and sustainable materials consulting. Brightworks has worked with a variety of clients, including educational institutions, government agencies, and private corporations, to implement effective sustainability programs. Their commitment to continuous innovation and addressing emerging sustainability needs further solidifies their role in the industry.

7. KieranTimberlake

• Website: kierantimberlake.com
• Ownership type: Private
• Headquarters: Philadelphia, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1984
• Headcount: 51-200
• LinkedIn: kierantimberlake

KieranTimberlake is an architecture firm based in Philadelphia, Pennsylvania, founded in 1984. With a team of approximately 88 employees, the firm focuses on sustainable design and innovative housing solutions. They provide architectural services, prefabricated homes, and engage in research related to planning and design. KieranTimberlake's clientele includes homeowners, educational institutions, and government entities, all seeking environmentally responsible solutions. The firm is known for its collaborative approach, customizing projects to meet the unique needs of each client. Their notable projects include the OpenHome, designed to Passive House standards, and the LivingHomes series, which emphasizes sustainable materials and construction methods. KieranTimberlake's commitment to sustainability is further highlighted through their research initiatives, such as the Tally® Life Cycle Assessment app, which aids in evaluating the environmental impact of building materials. The firm has received multiple awards for its innovative designs and contributions to the field of architecture.

8. Sustainable Design Consulting, LLC

• Website: sustaindesign.net
• Ownership type: Private
• Headquarters: Richmond, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2002
• Headcount: 11-50
• LinkedIn: sustainable-design-consulting-llc

Sustainable Design Consulting, LLC (SDC) is a consulting firm based in Richmond, Virginia, specializing in sustainable design and green building practices. Established in 2002, SDC has built a reputation for excellence in the green building sector, providing services that include process management, technical services, facilities services, value assessments, program development, and professional training. The firm has worked on a wide array of projects across various sectors, including civic, healthcare, education, and residential buildings. SDC has been involved in over a thousand commercial-scale projects, helping clients achieve compliance with green building standards. Their portfolio showcases successful collaborations with public and private entities, emphasizing their expertise in LEED certification and other sustainability frameworks. As a certified woman-owned small business, SDC is committed to fostering a sustainable future through innovative solutions and educational initiatives, making significant contributions to the green building community.

9. Green Canopy NODE

• Website: greencanopynode.com
• Ownership type: Venture Capital
• Headquarters: Seattle, Washington, United States (USA)
• Employee distribution: United States (USA) 92%, Canada 8%
• Latest funding: Seed, $150,000, February 2022
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: green-canopy

Green Canopy NODE, based in Seattle, Washington, is a real estate developer that focuses on sustainable housing solutions. Founded in 2010, the company has carved a niche in the construction industry by offering services that include development, construction management, and consulting. Their primary focus is on creating all-electric and net-zero energy homes, which are designed to minimize environmental impact while maximizing energy efficiency. Green Canopy NODE has built over 300 homes in the Pacific Northwest, all adhering to high sustainability standards and certified by organizations like Built Green and Earth Advantage. The company also engages in impact investing, managing five real estate investment funds that target deep green residential projects. With a team of 36 employees, they emphasize partnerships to navigate the complexities of real estate development, ensuring that projects meet both financial and environmental objectives. In 2022, they secured seed funding of approximately $150,000, indicating ongoing support for their innovative approach to sustainable housing.

10. Bensonwood

• Website: bensonwood.com
• Ownership type: Private
• Headquarters: Walpole, New Hampshire, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1973
• Headcount: 51-200
• LinkedIn: benson-woodworking

Bensonwood, founded in 1973 and based in Walpole, New Hampshire, is a construction company that specializes in sustainable homebuilding. With a workforce of 51-200 employees, the company has carved out a niche in the market by offering a range of energy-efficient home designs, including their Unity Homes and OpenHome brands. Bensonwood focuses on creating homes that prioritize health, comfort, and sustainability. Their innovative approach utilizes offsite construction methods, which not only streamline the building process but also minimize environmental impact. The company serves both future homeowners and industry professionals, providing tailored solutions that meet the growing demand for sustainable living. Over the years, Bensonwood has gained recognition for its craftsmanship and commitment to reducing carbon footprints, making it a notable player in the green building industry.

11. Hok

• Website: hok.com
• Ownership type: Corporate
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 82%, Canada 9%, United Kingdom (UK) 5%, Other 4%
• Latest funding: $200,000, October 2021
• Founded year: 1955
• Headcount: 1001-5000
• LinkedIn: hok

HOK is a prominent design firm based in New York City, specializing in architecture, engineering, and urban planning. Founded in 1955, the company has grown to employ nearly 3,000 professionals across various locations, including major cities in the United States and internationally. HOK serves a wide range of clients, including corporate entities, government agencies, healthcare institutions, and educational organizations. The firm is known for its innovative design solutions that not only meet the specific needs of its clients but also emphasize sustainability and functionality. HOK's commitment to sustainable design is reflected in its project portfolio, which includes notable works in healthcare, civic, and corporate sectors. The firm has also been recognized for its efforts in promoting equity in design and fostering a culture of diversity and inclusion within its teams.

12. EcoSteel Buildings

• Website: ecosteel.com
• Ownership type: Corporate
• Headquarters: Laguna Niguel, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $33.0M, January 2023
• Founded year: 1995
• Headcount: 11-50
• LinkedIn: ecosteel

EcoSteel Buildings, founded in 1995 and based in Laguna Niguel, California, is a construction company that specializes in prefabricated steel buildings. With a workforce of 21 employees, EcoSteel offers customizable steel structures for various applications, including commercial, residential, and industrial projects. The company focuses on efficiency and sustainability, providing design and planning services tailored to meet the specific needs of their clients. EcoSteel's operations extend across multiple sectors, showcasing their versatility in the construction industry. Recently, they secured $33 million in funding in January 2023, indicating strong investor confidence in their business model and growth potential. Their commitment to using energy-efficient materials and promoting sustainable practices positions them as a notable player in the green building sector.

13. Bright Power

• Website: brightpower.com
• Ownership type: Venture Capital
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 99%, Other 1%
• Latest funding: $2.9M, October 2024
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: bright-power-inc-

Bright Power, founded in 2004 and based in New York City, is an energy consulting firm that specializes in energy efficiency management and renewable energy solutions. The company offers a wide range of services, including energy audits, compliance consulting, and green building certification, aimed at helping building owners and managers improve energy performance and meet regulatory requirements. Bright Power primarily serves clients in the real estate sector, focusing on multifamily affordable housing, market-rate properties, and commercial buildings. Their innovative EnergyScoreCards platform provides property performance analysis, enabling clients to identify energy waste and optimize their operations. Bright Power has also received funding, with a recent amount of approximately $2.89 million reported in October 2024, indicating ongoing investment in their mission to accelerate the transition to a zero-carbon future.

14. Green Builder Media, LLC

• Website: greenbuildermedia.com
• Ownership type: Private
• Headquarters: United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: June 2019
• Founded year: 2005
• Headcount: 1-10
• LinkedIn: green-builder-media-llc

Green Builder Media, LLC is a media company based in the United States, established in 2005. The company specializes in green building and sustainable practices, offering a range of publications, educational resources, and consulting services tailored for home builders, architects, and consumers interested in sustainable living. They operate several initiatives, including the VISION House projects, which showcase innovative green building technologies and practices. Their COGNITION Smart Data platform provides insights into market trends and consumer preferences related to sustainability. Green Builder Media also hosts webinars, produces a magazine, and maintains a knowledge base that includes eBooks and podcasts, all aimed at promoting environmentally responsible construction and living.

15. Isola Homes

• Website: isolahomes.com
• Ownership type: Private
• Headquarters: Bellevue, Washington, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: isola-homes

Isola Homes, founded in 2009 and based in Bellevue, Washington, is a home builder that specializes in constructing modern, green homes in the Seattle area. The company is dedicated to sustainable design and energy efficiency, offering residential construction services that cater to environmentally conscious home buyers. Isola Homes emphasizes quality craftsmanship and innovative construction techniques, ensuring that each home is not only aesthetically pleasing but also built to last. Their commitment to environmental stewardship is evident in their use of eco-friendly materials and practices, including recycling construction waste and sourcing local materials. Isola Homes has been recognized for its efforts in green building, having received multiple Built Green Hammer Awards for their projects. This recognition highlights their significant contributions to the green building industry and their ongoing commitment to enhancing the communities in which they operate.

16. Wright Builders, Inc.

• Website: wright-builders.com
• Ownership type: Private
• Headquarters: Northampton, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1974
• Headcount: 11-50
• LinkedIn: wright-builders

Wright Builders, Inc., based in Northampton, Massachusetts, is a construction company that specializes in sustainable and high-performance building solutions. Founded in 1974, the firm has built a reputation for delivering quality construction services that prioritize energy efficiency and environmental responsibility. They offer a range of services, including custom homes, renovations, and commercial construction, primarily serving clients in Western Massachusetts and southern Vermont. Wright Builders is particularly noted for its commitment to net-zero energy construction, ensuring that homes and buildings operate at net-zero energy on an annual basis when equipped with owner-installed photovoltaics. The company also focuses on using non-toxic materials and has been involved in projects that meet LEED certification standards. Their dedication to creating healthy indoor environments and minimizing carbon footprints positions them as a significant player in the green building sector.

17. Hempitecture

• Website: hempitecture.com
• Ownership type: Private
• Headquarters: Jerome, Idaho, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Grant), $8.4M, November 2024
• Founded year: 2018
• Headcount: 11-50
• LinkedIn: hempitecture

Hempitecture, founded in 2018 and based in Jerome, Idaho, specializes in manufacturing sustainable building materials, particularly insulation products derived from industrial hemp. The company aims to provide healthier, non-toxic alternatives to conventional insulation, which often contains harmful substances. Their product line includes HempWool, Hempcrete, FiberPad, and various PlantPanel options, all designed to enhance thermal and acoustic insulation in residential and commercial buildings. Hempitecture emphasizes the environmental benefits of their materials, highlighting that hemp is a carbon-capturing crop that requires minimal water and no pesticides or fertilizers. The company has received significant funding, including an $8.42 million grant in November 2024, which supports its growth and innovation in the sustainable building materials market. Hempitecture's mission aligns with the increasing demand for eco-friendly construction solutions, making it a notable player in the industry.

18. Materially Better (IES)

• Website: materiallybetter.com
• Ownership type: Private
• Headquarters: North Adams, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: integrated-eco-strategy-llc

Materially Better (IES), founded in 2010 and based in North Adams, Massachusetts, is a sustainability consulting firm dedicated to providing innovative solutions for sustainable building practices. The company assists clients, including architects and construction managers, in achieving ambitious sustainability goals through its proprietary Red2Green platform. This platform streamlines project management and material selection, allowing for real-time data tracking and decision-making throughout the construction process. Materially Better has worked on over 70 projects, focusing on reducing embodied carbon and enhancing health outcomes in the built environment. Their approach integrates rigorous standards, such as the Common Materials Framework and the AIA’s Materials Pledge, ensuring that their projects not only meet but exceed sustainability benchmarks. The firm is committed to fostering healthier, more sustainable buildings and actively engages in discussions around social justice and environmental responsibility within the industry.

19. Thrive Home Builders

• Website: thrivehomebuilders.com
• Ownership type: Private
• Headquarters: Denver, Colorado, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1987
• Headcount: 51-200
• LinkedIn: thrive-home-builders

Thrive Home Builders, based in Denver, Colorado, has been a player in the residential construction industry since 1987. The company focuses on sustainable and energy-efficient home building, catering primarily to homebuyers who prioritize healthier living environments. Thrive operates in the Denver and Fort Collins areas, offering innovative designs that promote sustainability. They have established themselves as a significant builder of Indoor airPLUS and Zero Energy Ready Homes, which are recognized for their energy efficiency and superior indoor air quality. Recently, Thrive has introduced the Thrive Carbon-Wise approach, aimed at producing carbon-neutral homes, further solidifying their commitment to environmental responsibility. Their homes are not just structures; they are designed to enhance health and community well-being, reflecting a modern understanding of the importance of sustainability in residential living.

20. Gensler

• Website: gensler.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 70%, United Kingdom (UK) 6%, China 4%, Other 20%
• Founded year: 1965
• Headcount: 5001-10000
• LinkedIn: gensler

Gensler is a global design and architecture firm based in San Francisco, California, founded in 1965. With a workforce of approximately 7,480 employees, Gensler specializes in architecture, interior design, and sustainability consulting across various sectors, including healthcare, education, and corporate environments. The firm adopts a collaborative approach to tackle complex design challenges, emphasizing the importance of human experience in the built environment. Gensler is committed to sustainability, as evidenced by its initiatives to reduce carbon emissions and its focus on creating resilient spaces. The firm has also developed product sustainability standards to guide its material choices, aiming to minimize environmental impact. Gensler operates in multiple countries, with a significant presence in the United States, and engages in research to inform its design practices, particularly in areas related to climate action and urban design.

21. Veev, By Lennar

• Website: veev.com
• Ownership type: Corporate
• Headquarters: Hayward, California, United States (USA)
• Employee distribution: United States (USA) 66%, Israel 34%
• Latest funding: November 2023
• Founded year: 2008
• Headcount: 201-500
• LinkedIn: veevgroup

Veev, By Lennar is a home builder based in Hayward, California, founded in 2008. The company specializes in innovative construction techniques that prioritize sustainability and efficiency. Veev creates turnkey homes that are designed and manufactured with advanced technology, allowing for faster construction times—reportedly four times quicker than traditional methods. Their approach includes a focus on high-quality craftsmanship and a commitment to reducing environmental impact. Veev's homes are built using a proprietary Closed Wall System, which integrates all essential systems within the walls, enhancing performance and reducing waste. The company also emphasizes the use of materials that are durable and environmentally friendly, such as light gauge steel, which minimizes waste during construction. Veev's homes are designed to be all-electric, relying on solar energy and equipped with EV charging infrastructure, further underscoring their commitment to sustainability. They serve both individual consumers and developers, building communities in California and Texas.

Green Building Companies Insights: Key Companies in the US

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