Geotechnical engineering companies play a crucial role in assessing soil and rock conditions to ensure the stability and safety of construction projects. They analyze underground features and provide necessary insights for building foundations, tunnels, and other structures. Services include subsurface evaluations, materials testing, and environmental assessments. With advancements in technology and increasing infrastructure needs, the industry is evolving to incorporate innovative tools and sustainable practices. The focus is shifting toward risk management and regulatory compliance, highlighting the significance of geotechnical services in contemporary construction methodologies.


This list highlights 20 prominent geotechnical engineering companies based in Colorado, ranging from small firms to larger entities. Most have been founded since the 1970s, reflecting strong industry ties and local expertise. Companies like Brierley Associates and RMG Engineers offer a robust portfolio that includes tunnel design and foundation analysis. Locations primarily span Denver, Colorado Springs, and surrounding areas, emphasizing a concentrated expertise in geotechnical solutions tailored to various sectors, including infrastructure, environmental, and construction services.


Continue reading to learn about the top geotechnical engineering companies in Colorado.


Top 20 Geotechnical Engineering Companies in Colorado


1. Brierley Associates Corporation


Brierley Associates Corporation, based in Denver, Colorado, is an engineering firm that has been active since 1999. The company specializes in underground construction and geotechnical engineering, offering a range of services that include tunnel design, trenchless technology, and subsidence mitigation. With a team of experienced professionals, Brierley Associates tackles complex underground challenges, ensuring that projects are executed with a focus on constructability and efficiency. Their expertise is particularly valuable in the construction and engineering sectors, where navigating subsurface conditions is critical. Over the years, Brierley Associates has built a reputation for delivering practical and innovative solutions, contributing to various significant projects across the United States. Their commitment to client satisfaction and project success is evident in their approach to engineering design and consulting.


2. GROUND Engineering Consultants, Inc.

  • Website: groundeng.com
  • Ownership type: Private
  • Headquarters: Englewood, Colorado, United States (USA)
  • Employee distribution: United States (USA) 98%, Canada 2%
  • Founded year: 1984
  • Headcount: 51-200
  • LinkedIn: ground-engineering

GROUND Engineering Consultants, Inc., based in Englewood, Colorado, is a private engineering consultancy that has been operational since 1984. With a workforce of approximately 143 employees, the company specializes in a variety of engineering services, prominently featuring geotechnical engineering. They have conducted over 15,000 subsurface investigations, which highlights their extensive experience and expertise in the field. GROUND Engineering also offers environmental engineering, construction materials testing, and specialty services, catering to both construction firms and government agencies. Their proactive approach to project management ensures that clients receive timely and practical solutions, which is critical in the fast-paced construction industry. The firm operates multiple offices across Colorado, enhancing their ability to serve a broad range of clients and projects. Their involvement in significant projects, such as the Denver International Airport and various highway reconstructions, underscores their capability and relevance in the geotechnical engineering sector.


3. RMG Engineers

  • Website: rmg-engineers.com
  • Ownership type: Private
  • Headquarters: Colorado Springs, Colorado, United States (USA)
  • Employee distribution: United States (USA) 69%, Canada 8%, Iraq 8%, Other 15%
  • Founded year: 1986
  • Headcount: 51-200
  • LinkedIn: rmg-engineers-group

RMG Engineers is a private engineering firm based in Colorado Springs, Colorado, with a workforce of approximately 431 employees. Established in 1986, the company specializes in structural, geotechnical, forensic, and environmental engineering services. RMG Engineers serves a wide range of clients in the construction and development sectors throughout Colorado, providing tailored solutions to meet specific project needs. Their geotechnical engineering services include comprehensive site assessments, soil analysis, and foundation design recommendations, ensuring that projects are built on solid ground. The firm prides itself on its commitment to quality, timeliness, and client satisfaction, which has fostered long-term relationships with various stakeholders in the industry. RMG Engineers operates multiple offices across Colorado, enhancing their ability to respond to client needs efficiently. Their focus on innovation and problem-solving has positioned them as a reliable partner in navigating the complexities of engineering projects.


4. A. G. Wassenaar, Inc.

  • Website: agwco.com
  • Ownership type: Private
  • Headquarters: Englewood, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1972
  • Headcount: 51-200
  • LinkedIn: a-g-wassenaar-inc-

A. G. Wassenaar, Inc. is a private consulting engineering firm based in Englewood, Colorado, founded in 1972. With a workforce of approximately 83 employees, AGW specializes in geotechnical engineering and environmental services. Their offerings include geotechnical design, materials testing, construction observation, and environmental assessments. The firm is known for its commitment to quality and has built a solid reputation among construction companies and municipalities. AGW employs state-of-the-art technology for automated data collection, enhancing their service delivery. Their extensive experience and focus on client needs have made them a trusted partner in the construction and development sectors.


5. Cesare Inc | CMT Technical Services Colorado

  • Website: cesareinc.com
  • Ownership type: Corporate
  • Headquarters: Centennial, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: March 2022
  • Founded year: 1987
  • Headcount: 11-50
  • LinkedIn: cesare-inc

Cesare Inc | CMT Technical Services Colorado is a consulting engineering firm based in Centennial, Colorado, with a focus on geotechnical engineering and construction materials consulting. Established in 1987, the company has built a reputation for providing critical services that include subsurface evaluation, forensic engineering, and comprehensive materials testing. Cesare Inc serves a variety of sectors, including construction and public projects, helping clients manage risks and ensure the integrity of their projects. The firm is AASHTO accredited and has received validation from the US Army Corps of Engineers, underscoring its commitment to quality and reliability. With a team of skilled professionals, Cesare Inc is dedicated to delivering innovative solutions and maintaining strong relationships with clients across Colorado, where it operates five locations.


6. Kumar and Associates, Inc.

  • Website: kumarusa.com
  • Ownership type: Private
  • Headquarters: Denver, Colorado, United States (USA)
  • Employee distribution: United States (USA) 91%, India 9%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: kumar-and-associates-inc.

Kumar and Associates, Inc. is an engineering consulting firm based in Denver, Colorado, specializing in geotechnical engineering and construction materials testing. Established in 1989, the company has built a reputation for delivering reliable engineering solutions across various sectors, including transportation, public-private partnerships, commercial projects, and environmental services. With a workforce of approximately 127 employees, Kumar operates through a network of offices throughout Colorado, ensuring localized expertise and responsiveness to client needs. The firm has successfully completed thousands of projects, demonstrating its capability in handling both routine and complex engineering challenges. Their services include geotechnical studies, engineering geology, and environmental assessments, all aimed at ensuring project safety and compliance with regulatory standards. Kumar's employee-owned structure promotes a strong commitment to quality and client satisfaction, making it a noteworthy entity in the geotechnical engineering industry.


7. Entech Engineering, Inc.

  • Website: entechengineers.com
  • Ownership type: Private
  • Headquarters: Colorado Springs, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1986
  • Headcount: 11-50
  • LinkedIn: entech-engineering-inc-

Entech Engineering, Inc. is a private engineering firm based in Colorado Springs, Colorado, established in 1986. With a workforce of 21 employees, the company specializes in a range of engineering services, including environmental assessments, material testing, structural engineering, and notably, geotechnical engineering. Entech serves a variety of clients, including property owners, developers, and municipal entities, providing expert guidance for construction and land development projects. Their geotechnical services include subsurface soil investigations, retaining structure analysis, and groundwater studies, which are critical for ensuring the safety and stability of construction projects. Entech has worked on numerous projects for local municipalities, showcasing their expertise and reliability in the field. Their commitment to delivering tailored engineering solutions that meet regulatory standards further solidifies their position in the industry.


8. Geocal

  • Website: geocal.us
  • Ownership type: Private
  • Headquarters: Centennial, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: geocal-inc-

Geocal, based in Centennial, Colorado, is an engineering firm that specializes in geotechnical engineering, construction management, bridge inspections, and laboratory services. Established in 1989, the company has grown from a one-person operation to a team of 51-200 employees, serving a variety of clients including federal agencies, municipalities, and private sector entities. Geocal has a strong focus on infrastructure projects, emphasizing quality, safety, and community involvement. Their services include consulting, geotechnical engineering and design, construction management, inspection, and materials testing. The firm has built a reputation for reliability and professionalism, with a commitment to maintaining high standards in all aspects of their work. Geocal operates several accredited laboratories and has been involved in significant projects across Colorado and beyond, showcasing their expertise in the field. Their approach to business is rooted in a stakeholder mentality, which prioritizes the success of their clients and the community, further solidifying their role in the geotechnical engineering industry.


9. NWCC, Inc

  • Website: nwccusa.com
  • Ownership type: Private
  • Headquarters: Steamboat Springs, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1992
  • Headcount: 11-50
  • LinkedIn: northwest-colorado-consultants-inc.

Northwest Colorado Consultants, Inc. (NWCC, Inc.) is a professional engineering consulting firm based in Steamboat Springs, Colorado. Founded in 1992, the company specializes in geotechnical and environmental services, providing a wide array of solutions including geotechnical investigations, environmental assessments, and materials testing. With a team of qualified engineers, geologists, and technicians, NWCC has successfully completed over 10,000 projects across various sectors, including construction and environmental management. Their services are designed to meet the needs of clients while ensuring compliance with regulatory standards. NWCC operates an accredited materials testing laboratory, further enhancing their capabilities in delivering quality engineering solutions. The firm is dedicated to providing exceptional customer service and has built a reputation for reliability and expertise in the geotechnical engineering sector.


10. CTL|Thompson

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

CTL|Thompson, Inc. is an engineering consulting firm based in Denver, Colorado, founded in 1971. The company specializes in geotechnical, structural, and environmental engineering, along with materials testing. With a workforce of approximately 200 employees, CTL|Thompson operates multiple offices across Colorado, Wyoming, and Montana, allowing them to serve a broad client base in the construction and development sectors. Their expertise includes providing geotechnical design and construction criteria, as well as construction observation and testing services. The firm has successfully completed numerous projects, ranging from residential developments to complex infrastructure initiatives. Their commitment to technical excellence and high standards of performance has earned them a trusted reputation in the industry, making them a valuable resource for clients navigating the challenges of design and construction.


11. Martinez Associates, INC.

  • Website: martineztesting.com
  • Ownership type: Private
  • Headquarters: Golden, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2011
  • Headcount: 11-50
  • LinkedIn: martinez-associates-llc

Martinez Associates, INC. is an engineering firm based in Golden, Colorado, established in 2011. The company specializes in geotechnical engineering, construction materials testing, and inspection services. With a workforce of 11-50 employees, they cater to both construction companies and governmental agencies, ensuring adherence to safety and quality standards across various projects. Their portfolio includes significant undertakings such as airports, commercial buildings, and infrastructure projects. The firm operates a modern, AASHTO-accredited laboratory for testing soils, bedrock, concrete, and asphalt, staffed by trained and certified technicians. The leadership team boasts extensive experience in the geotechnical field, with a strong emphasis on professional development and client service. Their commitment to quality assurance and their proactive approach to project management position them as a reliable partner in the geotechnical engineering industry.


12. Triax Engineering, LLC

  • Website: triaxgeo.com
  • Ownership type: Private
  • Headquarters: Commerce City, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2014
  • Headcount: 11-50
  • LinkedIn: triax-engineering-llc

Triax Engineering, LLC is a private engineering firm based in Commerce City, Colorado, specializing in geotechnical engineering, materials testing, environmental consulting, and specialty testing services. Established in 2014, the company has quickly made a name for itself by focusing on quality, ethics, and expertise. Triax serves a variety of clients in the construction and engineering sectors, ensuring that projects adhere to quality and regulatory standards through comprehensive testing and consulting solutions. Their team of skilled engineers and technicians is dedicated to providing customized project solutions, from the design phase through to construction. Triax has been involved in numerous projects, showcasing their ability to handle complex engineering challenges while maintaining a commitment to client satisfaction. With a strong emphasis on safety and innovation, Triax Engineering is positioned as a reliable partner for construction projects in need of geotechnical expertise.


13. Emprise Concepts

  • Website: empriseconcepts.com
  • Ownership type: Private
  • Headquarters: Evergreen, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2018
  • Headcount: 11-50
  • LinkedIn: emprise-concepts

Emprise Concepts is a Colorado-based engineering firm founded in 2018, specializing in construction management and geotechnical engineering. With a team of skilled professionals, the company provides a range of services tailored to meet the needs of both private and public sector clients. Their expertise includes ground characterization, risk assessment, and data analysis, which enhances project outcomes in civil infrastructure projects. Emprise Concepts has worked on various transportation infrastructure projects, demonstrating their capability in handling complex engineering challenges. The firm is committed to ethical practices and sustainability, contributing positively to the communities they serve.


14. Yeh and Associates, Inc.

  • Website: yeh-eng.com
  • Ownership type: Private
  • Headquarters: Denver, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1999
  • Headcount: 51-200
  • LinkedIn: yehandassociates

Yeh and Associates, Inc. is a private engineering firm based in Denver, Colorado, specializing in geotechnical engineering and construction management. Established in 1999, the company has built a reputation for providing high-quality engineering solutions tailored to the needs of infrastructure projects. Their service offerings include site investigation, pavement design, foundation design, and construction inspection. Yeh and Associates has worked on a variety of notable projects, such as the Canyonlands Field Airport and the Red Rocks Amphitheatre, showcasing their capability in handling complex engineering challenges. The firm prides itself on its skilled team of geotechnical engineers and construction management professionals, who are dedicated to delivering projects on time and within budget. Yeh and Associates also emphasizes quality assurance and has a strong commitment to community service, reflecting their values as a Minority Business Enterprise (MBE).


15. Vine Laboratories, INC.

  • Website: vinecolorado.com
  • Ownership type: Private
  • Headquarters: Aurora, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2003
  • Headcount: 51-200
  • LinkedIn: vine-laboratories-inc.

Vine Laboratories, INC., founded in 2003 and based in Aurora, Colorado, is a woman-owned construction engineering services company. The firm specializes in materials testing, construction inspections, and geotechnical drilling, serving clients in the construction and public infrastructure sectors. With a dedicated team of professionals, Vine Laboratories ensures project quality and compliance with industry standards. Their state-of-the-art laboratory is certified in various testing areas, including soils, aggregates, asphalt, and concrete. The company operates a fleet of drilling equipment, enabling them to conduct comprehensive geotechnical and environmental investigations. Their projects span significant infrastructure developments, including work for the Colorado Department of Transportation and Denver International Airport, highlighting their active role in the industry. Vine Laboratories prides itself on delivering high-quality services and maintaining a strong reputation for accountability and professionalism.


16. RockSol Consulting Group, Inc.

  • Website: rocksol.com
  • Ownership type: Private
  • Headquarters: Thornton, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1996
  • Headcount: 201-500
  • LinkedIn: rocksol-consulting-group-inc

RockSol Consulting Group, Inc. is a civil engineering consulting firm based in Thornton, Colorado, specializing in a wide array of engineering services, including transportation, traffic, structural, and notably, geotechnical engineering. Founded in 1996, RockSol has built a reputation for delivering high-quality engineering solutions that meet the needs of both government and private sector clients. The firm operates throughout the western United States, with a strong presence in states like Wyoming, California, Arizona, and Montana. RockSol's geotechnical engineering division plays a crucial role in the success of construction and transportation projects, focusing on subsurface investigations, foundation design, and slope stability analysis. Their commitment to quality is reflected in their ISO 9001:2015 certification and the operation of multiple accredited laboratories for materials testing. With a team of over 200 professionals, including more than 65 licensed engineers, RockSol is well-equipped to handle complex projects while ensuring compliance with industry standards and regulations.


17. GeoStabilization International

  • Website: geostabilization.com
  • Ownership type: Private Equity
  • Headquarters: Westminster, Colorado, United States (USA)
  • Employee distribution: United States (USA) 87%, Canada 10%, New Zealand 3%
  • Latest funding: September 2024
  • Founded year: 2002
  • Headcount: 501-1000
  • LinkedIn: geostabilization-international

GeoStabilization International, founded in 2002 and based in Westminster, Colorado, is a geohazard mitigation firm that specializes in emergency response and stabilization solutions for infrastructure. The company operates primarily in the United States, with a notable presence in Canada and New Zealand. GeoStabilization provides a range of services, including slope stabilization, rockfall mitigation, and foundation support, catering to various sectors such as transportation, mining, and energy. Their team comprises skilled geologists, geotechnical engineers, and technicians who are dedicated to ensuring safety and resilience in infrastructure projects. The firm emphasizes innovation and research, continually enhancing its service offerings to meet the evolving needs of its clients. They also provide 24-hour emergency response services, showcasing their readiness to address urgent geohazard situations effectively.


18. Kilduff Underground Engineering, Inc.


Kilduff Underground Engineering, Inc. is a private engineering firm based in Denver, Colorado, founded in 2014. The company specializes in underground design and construction management, providing a comprehensive range of services that include construction support, geotechnical design, and project oversight for various infrastructure projects. Their clientele primarily consists of construction managers and public agencies that require specialized expertise in underground construction. With a team boasting over 100 years of combined industry experience, Kilduff Underground Engineering is well-equipped to handle complex projects, including tunneling and trenchless technologies. The firm has been involved in notable projects across North America, demonstrating their capability and commitment to quality in the geotechnical engineering field.


19. VIVID Engineering Group Inc.

  • Website: vivideg.com
  • Ownership type: Private
  • Headquarters: Colorado Springs, Colorado, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2016
  • Headcount: 51-200
  • LinkedIn: vivideg

VIVID Engineering Group Inc. is a private engineering services firm based in Colorado Springs, Colorado, specializing in geotechnical, environmental, and construction inspection services. Established in 2016, the company has quickly grown to employ between 51 and 200 professionals. VIVID serves a variety of clients, including commercial businesses, local and state governments, and federal agencies, providing essential support for construction and environmental compliance projects. Their service offerings in geotechnical engineering include subsurface investigations, foundation design, and slope stability assessments. The company also operates accredited laboratories capable of performing various materials testing, which is crucial for ensuring compliance with industry standards. VIVID's involvement in significant projects, such as the I-25/Cimarron Interchange and the Central 70 Project, highlights their active role in the engineering sector. Their commitment to quality and safety is reflected in their certifications and adherence to rigorous testing protocols.


20. Tierra Group International, Ltd.


Tierra Group International, Ltd. is an engineering consultancy based in Lakewood, Colorado, specializing in geotechnical, water resources, civil, environmental, and geohazards engineering. Established in 2012, the company primarily serves clients in the mining sector, offering essential services such as tailings dam design and environmental assessments. With a team of experienced professionals, Tierra Group helps clients navigate the complexities of engineering challenges while minimizing environmental impacts. Their projects span across various countries, with a significant presence in Peru, the United States, Argentina, and Colombia. The firm prides itself on its client-first approach, emphasizing teamwork and innovative solutions. Their work not only supports the mining industry but also contributes to sustainable practices in resource extraction, making them a notable player in the geotechnical engineering field.



Geotechnical Engineering Insights: Key Companies in Colorado


CompanyHeadquarterSizeFoundedOwnership
Brierley Associates CorporationDenver, Colorado, United States (USA)51-2001999Private
GROUND Engineering Consultants, Inc.Englewood, Colorado, United States (USA)51-2001984Private
RMG EngineersColorado Springs, Colorado, United States (USA)51-2001986Private
A. G. Wassenaar, Inc.Englewood, Colorado, United States (USA)51-2001972Private
Cesare Inc | CMT Technical Services ColoradoCentennial, Colorado, United States (USA)11-501987Corporate
Kumar and Associates, Inc.Denver, Colorado, United States (USA)51-2001989Private
Entech Engineering, Inc.Colorado Springs, Colorado, United States (USA)11-501986Private
GeocalCentennial, Colorado, United States (USA)51-2001989Private
NWCC, IncSteamboat Springs, Colorado, United States (USA)11-501992Private
CTL|ThompsonDenver, Colorado, United States (USA)201-5001971Private
Martinez Associates, INC.Golden, Colorado, United States (USA)11-502011Private
Triax Engineering, LLCCommerce City, Colorado, United States (USA)11-502014Private
Emprise ConceptsEvergreen, Colorado, United States (USA)11-502018Private
Yeh and Associates, Inc.Denver, Colorado, United States (USA)51-2001999Private
Vine Laboratories, INC.Aurora, Colorado, United States (USA)51-2002003Private
RockSol Consulting Group, Inc.Thornton, Colorado, United States (USA)201-5001996Private
GeoStabilization InternationalWestminster, Colorado, United States (USA)501-10002002Private Equity
Kilduff Underground Engineering, Inc.Denver, Colorado, United States (USA)51-2002014Private
VIVID Engineering Group Inc.Colorado Springs, Colorado, United States (USA)51-2002016Private
Tierra Group International, Ltd.Lakewood, Colorado, United States (USA)11-502012Private


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