Colorado’s Front Range has grown into one of the busiest construction markets in the Mountain West, and the state is home to two of the ten largest contractors in the entire country. The firms behind that work range from multibillion-dollar national builders headquartered in Greeley and Denver to employee-owned Colorado companies that have built schools, hospitals, and highways across the Rockies for generations.
Table of Contents
This post ranks the top construction companies headquartered in Colorado by their position on Engineering News-Record’s 2026 Top 400 Contractors list, which ranks firms by their 2025 construction revenue. Every revenue figure and rank below comes from ENR’s published list; sources are linked throughout.
The top construction companies in Colorado
Here are the largest Colorado-headquartered contractors on ENR’s 2026 Top 400, ranked by national position.
| Rank (ENR 2026 Top 400) | Company | Headquarters | 2025 Revenue ($ millions) |
|---|---|---|---|
| 11 | Hensel Phelps | Greeley, CO | 10,783.6 |
| 14 | PCL Construction | Denver, CO | 9,854.2 |
| 132 | Catamount Constructors | Lakewood, CO | 1,024.0 |
| 142 | MWH Constructors | Broomfield, CO | 935.3 |
| 170 | FCI Constructors | Grand Junction, CO | 798.0 |
| 202 | SEMA Construction | Centennial, CO | 662.7 |
| 248 | CSI Construction | Colorado Springs, CO | 540.5 |
| 267 | Haselden Construction | Centennial, CO | 475.2 |
| 273 | JHL Constructors | Centennial, CO | 461.0 |
| 303 | Gerald H. Phipps (GH Phipps Construction) | Greenwood Village, CO | 404.0 |
| 306 | Saunders Construction | Englewood, CO | 396.9 |
| 312 | Bryan Construction | Colorado Springs, CO | 383.4 |
| 323 | Shaw Construction | Denver, CO | 360.5 |
Source: ENR 2026 Top 400 Contractors (2025 revenue).
Hensel Phelps
Headquarters: Greeley, Colorado 2025 revenue (ENR 2026 Top 400): $10,783.6 million — national rank #11
Hensel Phelps is one of the largest general contractors in the United States, founded in Greeley, Colorado, in 1937 and now a 100% employee-owned firm with roughly 5,000 employees. The company builds and manages large, complex projects nationwide and self-performs much of its own concrete and structural work.
Hensel Phelps’ services include:
- preconstruction and design-build
- general contracting and construction management
- self-perform concrete and structural work
- facility management and operations
- digital construction and virtual design
The company has extensive experience servicing the following sectors:
- aviation and transportation
- water and wastewater infrastructure
- healthcare and science and technology
- government, defense, and mission-critical
- commercial and higher education
Hensel Phelps is a national leader in aviation work — named the No. 1 airport-facilities builder on Building Design+Construction’s rankings — and its recent wins include the roughly $1.2 billion Terminal C at San Antonio International Airport, awarded in late 2024, and a $700 million expansion of Boise Airport selected in 2025. The firm continues to run its national operations from its original home base in Greeley.
PCL Construction
Headquarters: Denver, Colorado (US head office) 2025 revenue (ENR 2026 Top 400): $9,854.2 million — national rank #14
PCL is one of the largest construction organizations in North America, employee-owned and organized around a US business headquartered in Denver, where the company has operated since 1975. The broader PCL family of companies traces its roots to a firm founded in Canada in 1906; its American operations run out of Denver with more than 5,200 US employee-owners.
PCL’s services include:
- general contracting and construction management
- design-build and integrated project delivery
- preconstruction and self-perform civil work
- solar and renewable-energy construction
- special projects and building renovation
The company has extensive experience servicing the following sectors:
- commercial and mixed-use buildings
- data centers and mission-critical facilities
- healthcare and higher education
- civil infrastructure, water, and transportation
- renewable energy and industrial
PCL was among the most-decorated firms in ENR’s 2024 Project Award cycle, and its Colorado work continues on the Front Range — including a 22.5-megawatt, roughly $192 million data center near Parker, southeast of Denver, that topped out in 2026.
Catamount Constructors
Headquarters: Lakewood, Colorado 2025 revenue (ENR 2026 Top 400): $1,024.0 million — national rank #132
Catamount is a 100% employee-owned national general contractor founded in 1997 and based in Lakewood, just west of Denver. The firm crossed $1 billion in annual revenue built by its employee-owners and works across the western and southeastern United States from offices in Colorado, Texas, Florida, and Georgia.
Catamount’s services include:
- general contracting and construction management
- design-build
- preconstruction and conceptual budgeting
- value engineering and scheduling
- self-perform work
The company has extensive experience servicing the following sectors:
- multifamily and build-to-rent
- retail and commercial
- industrial and distribution
- senior living and healthcare
- government and education
Catamount’s team earned Associated Builders and Contractors Awards of Excellence for its Jefferson Mill and Rockdale Distribution Center projects, and its Colorado project portfolio includes large Front Range multifamily work such as the Legacy at Metro, a five-story, roughly 564,000-square-foot, 380-unit community in Aurora.
MWH Constructors
Headquarters: Broomfield, Colorado 2025 revenue (ENR 2026 Top 400): $935.3 million — national rank #142
MWH Constructors is a global project-delivery company focused on water and wastewater infrastructure, headquartered in Broomfield, Colorado. The business carries forward the MWH name from a heritage that traces back to the early water-engineering firm that became MWH Global — the parent acquired by Stantec in 2016 — and now operates as a stand-alone construction firm.
MWH’s services include:
- construction management and general contracting
- design-build and integrated project delivery
- self-perform civil and process-mechanical work
- program and capital-construction services
- treatment-plant expansion and rehabilitation
The company has extensive experience servicing the following sectors:
- drinking-water treatment and distribution
- wastewater treatment and conveyance
- water resources and reservoirs
- energy and industrial water
- municipal infrastructure
MWH concentrates on water and wastewater treatment projects for public utilities and industrial clients across North America, delivered from its Broomfield base and a network of regional project offices.
FCI Constructors
Headquarters: Grand Junction, Colorado 2025 revenue (ENR 2026 Top 400): $798.0 million — national rank #170
FCI Constructors is an employee-owned commercial builder founded in Grand Junction, Colorado, in 1978. The firm grew from Colorado’s Western Slope into a regional leader across the Rockies and Southwest, with offices in Frederick and Durango, plus Arizona, Wyoming, North Dakota, and New Mexico.
FCI’s services include:
- general contracting
- construction management
- design-build
- preconstruction
- self-perform concrete and carpentry
The company has extensive experience servicing the following sectors:
- K–12 and higher education
- healthcare and senior living
- municipal and recreation
- commercial and office
- industrial, warehouse, and correctional
FCI won a national Eagle Award for Excellence in Construction from Associated Builders and Contractors in 2024 for the Littleton Public Schools EPIC Campus, a career- and technical-education facility on the Front Range, one of many education projects in its Colorado portfolio.
SEMA Construction
Headquarters: Centennial, Colorado 2025 revenue (ENR 2026 Top 400): $662.7 million — national rank #202
SEMA Construction is a heavy-civil and infrastructure contractor founded in 1991 and headquartered in Centennial, Colorado. The firm has completed more than $1 billion in heavy-civil work since its founding and employs more than 800 people across district offices in Colorado, California, Florida, and Texas.
SEMA’s services include:
- highway and roadway construction
- earthwork and grading
- bridges and structures
- dams and reservoirs
- utilities and civil infrastructure
The company has extensive experience servicing the following sectors:
- highways and transportation
- water resources and dams
- aviation and site development
- public works and civil infrastructure
- heavy earthwork
SEMA delivers large highway, earthwork, and water-infrastructure projects for public agencies across the West, with its home operations rooted in the Denver metro area. Its project record spans transportation and civil work across several states.
CSI Construction
Headquarters: Colorado Springs, Colorado 2025 revenue (ENR 2026 Top 400): $540.5 million — national rank #248
CSI Construction Company is a general contractor established in 1978 and headquartered in Colorado Springs. The firm provides general contracting, construction management, and design-build services, with a strong concentration in multifamily, mixed-use, and commercial development.
CSI’s services include:
- general contracting
- construction management
- design-build
- preconstruction
- value engineering
The company has extensive experience servicing the following sectors:
- multifamily and mixed-use
- retail and grocery
- hospitality and senior housing
- medical and office
- recreation and industrial
CSI’s recent Colorado Springs work includes the Plaza at Pikes Peak, a 215-unit multifamily development that won a 2023 CoStar Impact Award for multifamily development of the year in Colorado Springs, along with the 306-unit Aura Crossroads and the Preserve at Mesa Creek.
Haselden Construction
Headquarters: Centennial, Colorado 2025 revenue (ENR 2026 Top 400): $475.2 million — national rank #267
Haselden Construction is a Colorado-based general contractor and developer founded in 1973 and headquartered in Centennial. The firm offers general contracting, construction management, design-build, and turnkey development, backed by a broad preconstruction practice.
Haselden’s services include:
- general contracting and construction management
- design-build and integrated project delivery
- preconstruction
- virtual design and construction
- turnkey real-estate development
The company has extensive experience servicing the following sectors:
- education and higher education
- healthcare
- hospitality and senior living
- municipal and civic
- multifamily and office
Haselden earned an ENR regional award for the J. Robert Young Alpine Ascent Center at Colorado Mountain College’s Spring Valley campus, and the firm was named a Denver Post Top Workplace for the 11th consecutive year in 2026 — one of the longest such runs of any Colorado contractor.
JHL Constructors
Headquarters: Centennial, Colorado 2025 revenue (ENR 2026 Top 400): $461.0 million — national rank #273
JHL Constructors is a 100% employee-owned, Colorado-focused builder founded in 1987 and based in Centennial. The firm works across both infrastructure and vertical-building markets, an unusual combination that lets it self-deliver everything from water systems to schools.
JHL’s services include:
- general contracting and construction management
- heavy-civil and infrastructure construction
- water and wastewater construction
- vertical building construction
- preconstruction
The company has extensive experience servicing the following sectors:
- water and wastewater
- transportation and land development
- education and municipal
- mining
- multifamily and commercial
JHL was named ENR’s 2022 Mountain States Contractor of the Year, and its recent Colorado projects include the Sophia Apartments in Englewood, the Independence Academy special-education building, and a rebuilt facility for the Arapahoe County Sheriff’s Office.
Gerald H. Phipps (GH Phipps Construction)
Headquarters: Greenwood Village, Colorado 2025 revenue (ENR 2026 Top 400): $404.0 million — national rank #303
GH Phipps Construction Companies is one of Colorado’s longest-established builders, with roots dating to 1952 when Gerald H. Phipps took over the Denver office of an earlier construction firm. Headquartered in Greenwood Village, the company builds across the Front Range and into Wyoming, with a long track record in healthcare, education, and research facilities. (ENR’s 2026 list prints the firm as “Gerald H. Phillips Inc.” — a spelling error for the Phipps name.)
GH Phipps’ services include:
- general contracting and construction management
- design-build
- preconstruction and estimating
- value engineering and scheduling
- self-perform work
The company has extensive experience servicing the following sectors:
- healthcare
- higher education and K–12
- research and high-tech labs
- office and commercial
- civic and recreation
GH Phipps was named ENR’s 2018 Colorado Contractor of the Year, and its recent Colorado work includes a $70 million expansion of Children’s Hospital Colorado’s North Campus in Broomfield and the Freyer–Newman Center at the Denver Botanic Gardens.
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