Engineering consulting companies in Virginia play a pivotal role in shaping the state's infrastructure and development. This sector includes firms specializing in disciplines like civil, mechanical, electrical, and environmental engineering, offering services such as project management, compliance assessments, and technical consulting. As sustainability and advanced technology gain traction, the industry is increasingly investing in green engineering solutions and digital transformation. Companies are realizing the importance of environmentally responsible practices and adapting to regulatory changes, paving the way for a more innovative future in engineering consulting.

This list features 23 engineering consulting firms based in Virginia, ranging from smaller outfits to larger corporations. The companies vary in size, with some employing fewer than 50 individuals and others boasting over 4,000 staff members. Each firm has its unique specialization, with sectors such as geotechnical, architectural, and construction management represented. Founded as early as 1901, these firms reflect a rich history and evolution in engineering practices, ensuring clients receive expert services tailored to intricate projects.

Continue reading to explore the top engineering consulting companies in Virginia.

Top 23 Engineering Consulting Companies in Virginia

1. Schnabel Engineering

• Website: schnabel-eng.com
• Ownership type: Private
• Headquarters: Glen Allen, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1956
• Headcount: 501-1000
• LinkedIn: schnabel-engineering

Schnabel Engineering, based in Glen Allen, Virginia, is a private engineering firm that specializes in geotechnical, dam, and tunnel engineering projects. Established in 1956, the company has built a reputation for providing comprehensive services that include design, construction support, and risk management. Schnabel Engineering serves a wide range of clients, including government entities and various industries, helping them navigate the complexities of infrastructure development. The firm has a strong focus on delivering site-specific solutions tailored to the unique challenges of each project. With a workforce of approximately 597 employees, Schnabel Engineering has the capacity to manage significant projects across the United States. Their portfolio showcases a variety of successful projects, including dam upgrades, tunnel construction, and water resource management, reflecting their expertise in critical infrastructure. Schnabel Engineering is committed to improving community safety and resilience through their engineering solutions.

2. ECS Group of Companies

• Website: ecslimited.com
• Ownership type: Corporate
• Headquarters: Chantilly, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: August 2022
• Founded year: 1988
• Headcount: 1001-5000
• LinkedIn: ecs-limited

ECS Group of Companies, based in Chantilly, Virginia, is an engineering consulting firm that has been operational since 1988. The company specializes in a broad spectrum of services, including geotechnical engineering, construction materials testing, environmental assessments, and facilities management. ECS serves a variety of sectors, such as commercial, government, and healthcare, ensuring that clients meet compliance standards and achieve project success through expert consulting and testing services. With a workforce of over 2,300 employees, ECS operates across more than 90 locations in the United States, emphasizing collaboration and responsiveness to client needs. Their extensive service offerings and commitment to quality position them as a significant player in the engineering consulting industry.

3. Timmons Group

• Website: timmons.com
• Ownership type: Private
• Headquarters: Richmond, Virginia, United States (USA)
• Employee distribution: United States (USA) 99%
• Founded year: 1953
• Headcount: 501-1000
• LinkedIn: timmons-group

Timmons Group, based in Richmond, Virginia, is an engineering firm that specializes in civil engineering, environmental services, and geospatial technology. Established in 1953, the company has built a robust portfolio serving clients across multiple sectors, including government, healthcare, education, and commercial enterprises. Their services range from site engineering and planning to infrastructure design and construction management. Timmons Group is known for its focus on sustainable practices, ensuring that projects not only meet current needs but also consider future impacts on communities and the environment. The firm employs nearly 1,000 professionals, showcasing its capacity to handle a variety of projects. Their commitment to regulatory compliance and innovative solutions positions them as a reliable partner in infrastructure development and environmental stewardship.

4. MPR Associates, Inc.

• Website: mpr.com
• Ownership type: Corporate
• Headquarters: Alexandria, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2012
• Founded year: 1964
• Headcount: 201-500
• LinkedIn: mpr-associates-inc-

MPR Associates, Inc., based in Alexandria, Virginia, is an engineering consulting firm founded in 1964. The company provides technical solutions across various sectors, notably Power & Energy, Nuclear Technologies, and Health & Life Sciences. MPR assists clients, including government agencies and utilities, in project execution, risk management, and product development. Their work often involves navigating complex regulatory environments and ensuring compliance with industry standards. MPR has a strong focus on innovation, leveraging their extensive experience to address challenges in nuclear safety, medical technology, and energy generation. The firm has built a reputation for delivering reliable and effective solutions, making it a trusted partner in the engineering consulting industry.

5. Technologists, Inc.

• Website: technologistsinc.com
• Ownership type: Private
• Headquarters: Falls Church, Virginia, United States (USA)
• Employee distribution: United States (USA) 63%, Afghanistan 37%
• Founded year: 1999
• Headcount: 501-1000
• LinkedIn: technologists-inc.

Technologists, Inc. is an infrastructure consulting firm based in Falls Church, Virginia, established in 1999. The company specializes in providing integrated technical and management services, focusing on architecture, engineering, construction management, and logistics. With over two decades of experience, Technologists, Inc. has successfully completed numerous projects in water management, energy, and international development, particularly in challenging environments. Their client base includes notable organizations such as the U.S. Army Corps of Engineers and the U.S. Agency for International Development. The firm has a strong presence in Afghanistan, where it has undertaken significant projects aimed at rebuilding and modernizing critical infrastructure. Technologists, Inc. is also dedicated to capacity building, offering training programs that enhance local skills and promote economic growth. This commitment to both project delivery and community development underscores their role in the engineering consulting industry.

6. Wiley|Wilson

• Website: wileywilson.com
• Ownership type: Private
• Headquarters: Lynchburg, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1901
• Headcount: 51-200
• LinkedIn: wileywilson

Wiley|Wilson is an architecture and engineering firm based in Lynchburg, Virginia, founded in 1901. The company specializes in a variety of services, including architectural design, structural engineering, and the design of mechanical and electrical systems. They cater to a wide array of clients, including government agencies, educational institutions, and industrial clients. Wiley|Wilson emphasizes innovative solutions tailored to meet the specific needs of their clients. Their portfolio includes significant projects such as the U.S. Army War College and various facilities for the federal government. The firm operates with a strong employee-ownership model, which fosters a culture of commitment and service. This structure not only enhances employee engagement but also aligns the interests of the staff with those of their clients, ensuring a focus on quality and client satisfaction.

7. Engineering and Technical Consultants, Inc

• Website: etc-web.com
• Ownership type: Private
• Headquarters: Sterling, Virginia, United States (USA)
• Employee distribution: United States (USA) 88%, Philippines 12%
• Founded year: 1982
• Headcount: 11-50
• LinkedIn: engineering-and-technical-consultants-inc

Engineering and Technical Consultants, Inc. (ETC) is an engineering consulting firm based in Sterling, Virginia, with additional locations in Maryland. Established in 1982, ETC has built a reputation for integrity and professionalism in the engineering consulting field. The firm offers a variety of services, including structural, mechanical, and architectural engineering, as well as property studies and litigation support. Their client base includes building owners, government agencies, and businesses within the construction and real estate sectors. ETC's team is dedicated to helping clients navigate engineering challenges while ensuring compliance with safety standards. The firm prides itself on its independent approach, providing unbiased recommendations to clients. With a workforce of 11-50 employees, ETC has maintained a consistent presence in the industry for over four decades, demonstrating their commitment to quality and client satisfaction.

8. AES Consulting Engineers

• Website: aesva.com
• Ownership type: Private
• Headquarters: Williamsburg, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1980
• Headcount: 51-200
• LinkedIn: aes-consulting-engineers

AES Consulting Engineers, founded in 1980 and based in Williamsburg, Virginia, is a private consulting engineering firm specializing in civil engineering, land planning, surveying, and landscape architecture. With a workforce of approximately 94 employees, the firm has built a solid reputation for providing expert guidance to clients, including developers and municipalities. Their services are designed to assist clients in navigating complex regulatory environments and optimizing land use for various projects. AES has been involved in a wide array of projects, ranging from residential subdivisions to healthcare facilities and commercial developments. Their expertise extends to municipal utilities and solar site feasibility, showcasing their adaptability to emerging trends in the industry. The firm has maintained a strong presence in the Mid-Atlantic region, with multiple office locations to better serve their clients. AES Consulting Engineers is recognized for its commitment to delivering high-quality, constructible plans and fostering collaborative relationships with clients and local government entities.

9. RASco, Inc.

• Website: rascoengineers.com
• Ownership type: Private
• Headquarters: Woodbridge, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 11-50
• LinkedIn: rasco-inc-

RASco, Inc. is an engineering and consulting firm based in Woodbridge, Virginia, founded in 1991. The company specializes in a wide array of services, including environmental management, energy management, and facility design. RASco serves a mix of clients, including federal, state, and local government agencies, as well as private sector organizations. Their expertise extends to the design, operation, and protection of critical infrastructure, which is increasingly important in today's climate of heightened security and environmental awareness. RASco is recognized as a Service-Disabled Veteran-Owned Small Business, which may enhance their appeal to clients seeking to engage with diverse suppliers. The firm has built a reputation for providing innovative solutions tailored to the specific needs of their clients, ensuring that they remain relevant in a competitive market.

10. Bohler

• Website: bohlerengineering.com
• Ownership type: Private
• Headquarters: Herndon, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1981
• Headcount: 501-1000
• LinkedIn: bohler-engineering

Bohler is an engineering firm based in Herndon, Virginia, specializing in land development services. Established in 1981, the company has built a reputation for providing a comprehensive range of professional services, including site civil engineering, land surveying, and permitting. Bohler's expertise is particularly valuable in helping clients navigate the often complex regulatory environments associated with land development. They serve a variety of markets, including education, healthcare, energy, and mixed-use developments, showcasing their adaptability and industry knowledge. With a workforce of over 1,100 employees, Bohler has successfully partnered on tens of thousands of projects across the United States, demonstrating their capability to manage large-scale developments efficiently. Their focus on client collaboration and project execution positions them as a significant player in the engineering consulting sector.

11. Thompson & Litton

• Website: t-l.com
• Ownership type: Private
• Headquarters: Wise, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1956
• Headcount: 51-200
• LinkedIn: thompson-litton

Thompson & Litton, Inc. is a professional engineering and architecture firm based in Wise, Virginia, founded in 1956. With a workforce of over 100 professionals, the company operates multiple offices across Virginia, Tennessee, and West Virginia. They provide a wide array of services, including civil engineering, surveying, transportation, and structural engineering. Thompson & Litton emphasizes sustainable practices and efficient design solutions, catering to both municipal and private clients. Their commitment to client satisfaction is evident in their collaborative approach and the quality of their work. The firm has recently expanded its capabilities through the acquisition of Tysinger, Hampton & Partners, enhancing their service offerings and market reach. This growth reflects their ongoing dedication to meeting the evolving needs of their clients and the communities they serve.

12. Clark Nexsen

• Website: clarknexsen.com
• Ownership type: Private
• Headquarters: Virginia Beach, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1920
• Headcount: 201-500
• LinkedIn: clark-nexsen

Clark Nexsen is an architecture and engineering firm based in Virginia Beach, Virginia, with a history dating back to 1920. The company specializes in providing comprehensive design solutions that span various sectors, including commercial, education, and government. With a workforce of approximately 425 employees, Clark Nexsen emphasizes collaboration and innovation in its projects. The firm is known for its commitment to sustainability and has developed a reputation for addressing unique project challenges through a transdisciplinary approach. Their portfolio includes work in infrastructure, energy, and community-focused projects, showcasing their ability to adapt and respond to the evolving needs of clients. Clark Nexsen's design process is rooted in strong client relationships and a commitment to excellence, which has allowed them to remain relevant in the competitive engineering consulting industry.

13. Summer Consultants, Inc.

• Website: summerconsultants.com
• Ownership type: Private
• Headquarters: Mclean, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1963
• Headcount: 51-200
• LinkedIn: summer-consultants-inc-

Summer Consultants, Inc. is a consulting firm based in McLean, Virginia, specializing in engineering and architectural services. Established in 1963, the company has developed a strong focus on mechanical, electrical, plumbing, and fire protection solutions. They cater primarily to government, institutional, and higher education clients, showcasing their ability to handle complex projects, particularly those involving older and historic buildings. The firm prides itself on its efficiency and high-quality outcomes, which is reflected in their impressive 95% client referral rate. Summer Consultants has a dedicated team of experts who are well-versed in the unique challenges presented by older structures, ensuring that they meet modern safety and comfort standards. Their extensive experience with IDIQ contracts and multi-year engagements highlights their reliability and expertise in the field.

14. Green Powered Technology (GPTech)

• Website: greenpoweredtechnology.com
• Ownership type: Corporate
• Headquarters: Arlington, Virginia, United States (USA)
• Employee distribution: United States (USA) 51%, Ukraine 16%, Liberia 6%, Other 27%
• Latest funding: May 2018
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: greenpoweredtechnology

Green Powered Technology (GPTech), founded in 2010 and based in Arlington, Virginia, is a consulting firm dedicated to sustainable energy and infrastructure solutions. With a team of around 80 professionals, GPTech provides engineering design, construction supervision, and technical assistance to government agencies and international organizations. Their projects span various global locations, addressing the pressing need for environmentally responsible infrastructure. GPTech is actively involved in initiatives that support the Sustainable Development Goals (SDGs), showcasing their commitment to creating a sustainable future. They have secured multiple contracts with USAID, including significant projects in Ukraine, South Sudan, and Bangladesh, which highlight their expertise and reliability in the field. Their operations not only focus on engineering but also on fostering sustainable development strategies that benefit communities worldwide.

15. Austin Brockenbrough & Associates, LLC

• Website: brockenbrough.com
• Ownership type: Private Equity
• Headquarters: Richmond, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: June 2021
• Founded year: 1955
• Headcount: 11-50
• LinkedIn: austin-brockenbrough-%26-associates

Austin Brockenbrough & Associates, LLC is an engineering and consulting firm based in Richmond, Virginia, founded in 1955. The company specializes in a variety of services, including architecture, civil engineering, mechanical engineering, electrical engineering, structural engineering, and surveying. With a dedicated team of professionals, Brockenbrough serves both governmental and commercial clients, helping them navigate the complexities of infrastructure projects. Their expertise spans multiple sectors, including transportation, utilities, and site development, showcasing their ability to adapt to the evolving needs of the industry. The firm has a strong commitment to quality service and innovative solutions, which is reflected in their extensive portfolio of projects. Brockenbrough's focus on community enhancement and infrastructure improvement positions them as a significant player in the engineering consulting field.

16. Valley Engineering, PLC

• Website: valleyesp.com
• Ownership type: Private
• Headquarters: Mount Crawford, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1997
• Headcount: 11-50
• LinkedIn: valley-engineering-plc

Valley Engineering, PLC, based in Mount Crawford, Virginia, is a professional engineering firm founded in 1997. With a team of 16 employees, the company specializes in a wide array of services, including mechanical, electrical, plumbing, and civil engineering, as well as landscape architecture and construction management. Their clientele includes developers and government entities, who rely on their expertise for efficient project execution and regulatory compliance. Valley Engineering prides itself on its commitment to quality and responsiveness, which is reflected in the number of repeat clients they serve each year. The firm emphasizes open communication and collaboration throughout the design and construction processes, ensuring that projects meet or exceed client expectations. With over 300 years of combined construction experience among their engineers, Valley Engineering is well-equipped to deliver innovative and cost-effective solutions tailored to the unique needs of each project.

17. Planate Management Group

• Website: planate.com
• Ownership type: Private
• Headquarters: Alexandria, Virginia, United States (USA)
• Employee distribution: United States (USA) 48%, Philippines 23%, Kenya 14%, Other 15%
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: planatemg

Planate Management Group, founded in 2007 and based in Alexandria, Virginia, is an engineering and facility management company that provides technical solutions in complex environments. The firm offers a range of services, including architectural design, engineering support, and facility management, primarily catering to government and military clients. With a workforce of approximately 304 employees, Planate operates not only in the United States but also has a significant presence in countries like the Philippines, Kenya, and Guam. The company has successfully secured numerous contracts, such as those with the U.S. Army Corps of Engineers and the Department of Veterans Affairs, showcasing its capability to manage projects that require specialized engineering and management expertise. Planate's commitment to service, integrity, and innovation is evident in its approach to delivering comprehensive solutions that meet operational standards and client needs.

18. JP Harvey Engineering Solutions

• Website: jphes.com
• Ownership type: Private
• Headquarters: Hampton, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1998
• Headcount: 11-50
• LinkedIn: jp-harvey-engineering-solutions

JP Harvey Engineering Solutions (JPHES) is a Virginia-based engineering firm that has been operational since 1998. The company specializes in mechanical, electrical, and plumbing (MEP) design services, catering to both commercial and government clients. With a team of licensed Professional Engineers and specialists in various fields, JPHES focuses on creating efficient and sustainable building systems. Their services range from commissioning and technology integration to sustainability solutions, reflecting a commitment to modern engineering practices. Over the years, JPHES has successfully completed more than 1,300 projects, showcasing their capability in handling significant construction values. Their portfolio includes notable projects such as educational facilities and government buildings, demonstrating their versatility and expertise in the engineering consulting field.

19. Ght

• Website: ghtltd.com
• Ownership type: Private
• Headquarters: Arlington, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1965
• Headcount: 51-200
• LinkedIn: ght-limited

GHT, based in Arlington, Virginia, is an engineering firm that specializes in mechanical, electrical, and plumbing (MEP) systems. Established in 1965, the company has built a reputation for providing innovative solutions that prioritize energy efficiency and sustainability. GHT offers a range of services, including building assessments, energy-efficient design, and sustainability consulting, catering primarily to clients in the real estate and commercial sectors. Their expertise is evident in their involvement with high-profile projects such as the Amazon HQ2 and the U.S. Green Building Council Headquarters, where they have successfully integrated advanced MEP systems to enhance building performance. GHT is also proactive in addressing industry challenges, offering workshops and insights on evolving trends in the built environment. With a dedicated team of professionals, GHT continues to influence the MEP engineering landscape, focusing on occupant wellness and operational efficiency.

20. MEP Designs Inc.

• Website: mepdesigns.com
• Ownership type: Private
• Headquarters: Manassas, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2004
• Headcount: 11-50
• LinkedIn: mep-designs-inc-

MEP Designs Inc., founded in 2004 and based in Manassas, Virginia, is an engineering firm that specializes in mechanical, electrical, and plumbing engineering design and consulting services. The company serves a variety of clients, including commercial businesses, government agencies, and educational institutions, providing solutions for both new construction and renovation projects. Their work ensures compliance with building codes and enhances energy efficiency across multiple sectors. MEP Designs has a solid reputation for delivering value-driven engineering solutions, and their team is well-versed in the complexities of large-scale projects as well as smaller endeavors. They are licensed to operate in several states, including Virginia, Maryland, and Washington, D.C., which broadens their operational footprint. The firm has also engaged in notable projects, such as the commissioning of engineering systems for the World Bank Group Country Office Building and the design of mechanical systems for various educational institutions. Their focus on continuous education and professional development for their engineers further underscores their commitment to excellence in the engineering consulting industry.

21. Emsi Engineering INC.

• Website: emsieng.com
• Ownership type: Private
• Headquarters: Manassas, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1987
• Headcount: 11-50
• LinkedIn: emsi-engineering-inc.

Emsi Engineering INC. is an engineering and architectural firm based in Manassas, Virginia, established in 1987. With a workforce of 32 employees, the company specializes in a wide array of services, including testing and inspections, geotechnical and environmental engineering, surveying, civil engineering, architectural design, and project management. Emsi Engineering has built a reputation for delivering quality services to a diverse clientele, which includes commercial businesses, residential projects, and government agencies. Their extensive experience spans over three decades, during which they have successfully managed numerous projects, both one-time and recurring contracts with government entities. The firm is recognized as a women-owned business and holds certifications such as DBE, SWAM, and EDWOSB, which further solidify its standing in the industry. Emsi Engineering is committed to ensuring successful project execution through meticulous planning and execution, making it a relevant player in the engineering consulting sector.

22. The Cadmus Group

• Website: cadmusgroup.com
• Ownership type: Corporate
• Headquarters: Arlington, Virginia, United States (USA)
• Employee distribution: United States (USA) 94%, United Kingdom (UK) 3%, Other 3%
• Latest funding: September 2021
• Founded year: 1983
• Headcount: 1001-5000
• LinkedIn: the-cadmus-group

The Cadmus Group, founded in 1983 and based in Arlington, Virginia, is a consulting firm that specializes in strategic and technical consultancy services. With a workforce of over 800 employees, Cadmus operates primarily in the United States, with a small presence in the United Kingdom and other regions. The firm focuses on sectors such as energy, climate, public health, and international development, assisting clients in navigating complex challenges and developing effective solutions. Their clientele includes utilities, government agencies, and organizations seeking expertise in sustainability and operational efficiency. Cadmus has a strong emphasis on data analytics and advanced technologies, which enhances their ability to deliver actionable insights and innovative solutions. They have been involved in significant projects, such as supporting the U.S. Water Sector and promoting energy efficiency programs, showcasing their commitment to addressing critical issues through engineering and consultancy.

23. Hurt & Proffitt

• Website: handp.com
• Ownership type: Private
• Headquarters: Lynchburg, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1973
• Headcount: 51-200
• LinkedIn: hurt-%26-proffitt-inc.

Hurt & Proffitt, based in Lynchburg, Virginia, is a consulting firm that specializes in engineering, surveying, and environmental services. Established in 1973, the company has built a reputation for providing comprehensive solutions tailored to the needs of both public and private sector clients. Their expertise spans a variety of projects, including infrastructure development, regulatory compliance, and land development challenges. Hurt & Proffitt's service offerings include civil engineering, environmental consulting, geotechnical services, and GIS, among others. The firm prides itself on its responsive and trusted approach, ensuring effective communication and collaboration throughout the project lifecycle. With a dedicated team of professionals, Hurt & Proffitt has successfully managed numerous projects, demonstrating their capability to navigate complex regulatory environments and deliver results that meet client expectations.

Engineering Consulting Insights: Key Companies in Virginia

Company	Headquarter	Size	Founded	Ownership
Schnabel Engineering	Glen Allen, Virginia, United States (USA)	501-1000	1956	Private
ECS Group of Companies	Chantilly, Virginia, United States (USA)	1001-5000	1988	Corporate
Timmons Group	Richmond, Virginia, United States (USA)	501-1000	1953	Private
MPR Associates, Inc.	Alexandria, Virginia, United States (USA)	201-500	1964	Corporate
Technologists, Inc.	Falls Church, Virginia, United States (USA)	501-1000	1999	Private
Wiley|Wilson	Lynchburg, Virginia, United States (USA)	51-200	1901	Private
Engineering and Technical Consultants, Inc	Sterling, Virginia, United States (USA)	11-50	1982	Private
AES Consulting Engineers	Williamsburg, Virginia, United States (USA)	51-200	1980	Private
RASco, Inc.	Woodbridge, Virginia, United States (USA)	11-50	1991	Private
Bohler	Herndon, Virginia, United States (USA)	501-1000	1981	Private
Thompson & Litton	Wise, Virginia, United States (USA)	51-200	1956	Private
Clark Nexsen	Virginia Beach, Virginia, United States (USA)	201-500	1920	Private
Summer Consultants, Inc.	Mclean, Virginia, United States (USA)	51-200	1963	Private
Green Powered Technology (GPTech)	Arlington, Virginia, United States (USA)	51-200	2010	Corporate
Austin Brockenbrough & Associates, LLC	Richmond, Virginia, United States (USA)	11-50	1955	Private Equity
Valley Engineering, PLC	Mount Crawford, Virginia, United States (USA)	11-50	1997	Private
Planate Management Group	Alexandria, Virginia, United States (USA)	201-500	2007	Private
JP Harvey Engineering Solutions	Hampton, Virginia, United States (USA)	11-50	1998	Private
Ght	Arlington, Virginia, United States (USA)	51-200	1965	Private
MEP Designs Inc.	Manassas, Virginia, United States (USA)	11-50	2004	Private
Emsi Engineering INC.	Manassas, Virginia, United States (USA)	11-50	1987	Private
The Cadmus Group	Arlington, Virginia, United States (USA)	1001-5000	1983	Corporate
Hurt & Proffitt	Lynchburg, Virginia, United States (USA)	51-200	1973	Private

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