Editor’s note: The information contained in this list was taken from the Energage database — information provided by the businesses themselves. It was done pre-pandemic, so it’s possible some of the information is dated, but it is representative of the state of the companies when the survey was done and when the top 150 list was decided.
No. 4
Visiting Angels of Denver
Years named: 7, 5 consecutive
Founded: 2008
Headquarters: Wheat Ridge
Employees: 160
Locations: 3
Facts: Visiting Angels of Denver provides supportive home care services for seniors and adults that allow them to safely stay in their homes and provide peace of mind to their families.
No. 5
Power Home Remodeling Group
Years named: 3
Founded: 1992
Headquarters: Chester, Penn.
Employees: 2,600, with 165 in Colorado
Locations: 1 in Colorado
Facts: Power a full-service, sustainable exterior home remodeler, provides energy-serving solutions with its product line of windows, siding, roofing, doors, solar roofing panels, and attic insulation.
No. 6
Applewood Plumbing Heating & Electric
Years named: 7, 4 consecutive
Founded: 1973
Headquarters: Denver
Employees: 165
Locations: 1
Facts: Applewood Plumbing Heating & Electric, which is known for its bright orange trucks, is one of Colorado’s only family-owned plumbing, heating, drain cleaning, cooling and electrical repair companies.
No. 7
Brown and Caldwell
Years named: 1
Founded: 1947
Headquarters: Walnut Creek, Calif.
Employees: 1,753, with 163 in Colorado
Locations: 1 in Colorado
Facts: Brown and Caldwell’s two founders had the vision to create a full-service environmental engineering and construction firm. The company works to safeguard water, maintain infrastructure, and restore habitats to help communities thrive.
No. 8
Cornerstone Home Lending
Years named: 7
Founded: 1988
Headquarters: Houston, Texas
Employees: 1,575, with 226 in Colorado
Locations: 53 in Colorado
Facts: With more than 80 offices in 18 states, Cornerstone Home Lending is a full-service residential mortgage banker. Cornerstone’s home loan transactions are handled in-house to ensure the company meets its agreed-upon closing date.
No. 9
ezCater
Years named: 2
Founded: 2007
Headquarters: Boston
Employees: 884, with 234 in Colorado
Locations: 1 in Colorado
Facts: ezCater connects businesses with more than 70,000 caterers and restaurants across the U.S. to make it easy to order food online for everything from office lunches to offsite client meetings. ezCater offers a curated list of the best business caterers for 22,743 cities and towns across the United States.
No. 10
Fransen Pittman General Contractors
Years named: 3
Founded: 1994
Headquarters: Englewood
Employees: 187
Locations: 2
Facts: Fransen Pittman is a premier Colorado-based construction company that specializes in buildings that transform communities and the lives of the people working, learning and living in them. The company participates in the Environmental Leadership Program for Colorado and was the only construction company to receive the Silver Environment Leader award.
No. 11
Donor Alliance Inc.
Years named: 6, 5 consecutive
Founded: 1985
Headquarters: Denver
Employees: 152, with 150 in Colorado
Locations: 4
Facts: Donor Alliance is the organ and tissue procurement agency for Colorado and most of Wyoming. The not-for-profit organization serves nearly a million residents and more than 110 hospitals.
No. 12
Stryker Corporation
Years named: 1
Founded: 1941
Headquarters: Kalamazoo, Mich.
Employees: 33,000, with 305 in Colorado
Locations: 1 in Colorado
Facts: Stryker is one of the world’s leading medical technology companies and offers innovative products and services that help improve patient and hospital outcomes.
No. 13
Ping Identity Corp.
Years named: 6, 3 consecutive
Founded: 2002
Headquarters: Denver
Employees: 938, with 376 in Colorado
Locations: 1 in Colorado
Facts: Ping Identity provides cloud identity security solutions to more than 800 of the world’s largest companies, government organizations and cloud businesses. Ping Identity’s services allow more than 42 members of the Fortune 100 to secure the information of hundreds of millions of employees, customers and partners.
No. 14
Renewal by Andersen
Years named: 6
Founded: 2011
Headquarters: Smithfield, Rhode Island
Employees: 1,200, 294 in Colorado
Locations: 5 in Colorado
Facts: Renewal by Andersen serves more than 100 markets in the United States and has become one of the largest window replacement window companies in the country since opening its first store in Minnesota in 1995. The company has installed nearly 3 million windows.
No. 15
8z Real Estate
Years named: 6
Founded: 2009
Headquarters: Boulder
Employees: 190, 187 in Colorado
Locations: 15 in Colorado
Facts: 8z Real Estate was formed in a cramped Boulder office with the revolutionary notion that the real estate experience was broken and needed to be fixed for both consumers and agents. The company now has 15 offices and more than 150 agents throughout Colorado. 8z Real Estate provides in-house mortgage, title, rentals, and insurance services.
No. 16
GSA Region 8
Years named: 2
Founded: 1949
Headquarters: Washington, D.C.
Employees: 11,000, with 354 in Colorado
Locations: 1 in Colorado
Facts: GSA Region 8 works strategically to spur economic development in the communities it serves. The agency awarded nearly $80 million in contracts to small businesses in fiscal year 2019.
No. 17
Extraction Oil & Gas Inc.
Years named: 4
Founded: 2013
Headquarters: Denver
Employees: 324, 320 in Colorado
Locations: 2 in Colorado
Facts: Extraction Oil & Gas is a Denver-based domestic exploration and production company that uses the latest in energy development technology and focuses primarily to develop oil and natural gas resources in the Denver-Julesburg Basin.
No. 18
Weifield Group Contracting
Years named: 9
Founded: 2002
Headquarters: Centennial
Employees: 541, with 465 in Colorado
Locations: 2 in Colorado
Facts: Weifield Group Contracting, a national leader in cutting-edge electrical construction, builds energy-efficient buildings in Colorado, Texas and Wyoming.
No. 19
Conga
Years named: 2
Founded: 2006
Headquarters: Broomfield
Employees: 515, with 280 in Colorado
Locations: 1
Facts: Conga, which is the top paid application on the Salesforce App Exchange, has spent more than a decade creating products that simplify and automate data, documents, contracts and reporting. One of the founders came up with the company’s name because itap products work like a conga line.
No. 20
Physician Health Partners
Years named: 8, 4 consecutive
Founded: 1996
Headquarters: Denver
Employees: 242, with 238 in Colorado
Locations: 2
Facts: Physician Health Partners works with PHPprime and Colorado Community Health Alliance to provide health care to more than 500,000 Coloradans in Denver and Colorado Springs.
No. 21
Delta Dental of Colorado
Years named: 1
Founded:1968
Headquarters: Denver
Employees: 194
Locations: 1
Facts: Delta Dental of Colorado helps its customers create healthy smiles by providing dental care benefits to its 1.4 million customers.
No. 22
Burns & McDonnell
Years named: 9
Founded: 1898
Headquarters: Kansas City, Mo.
Employees: 7,580, with 254 in Colorado
Locations: 1 in Colorado
Facts: Burns & McDonnell is an employee-owned company with more than 7,500 engineers, architects, construction professionals, scientists and consultants. It provides design and engineering services in a variety of industries ranging from telecommunications and transportation to municipal, military and manufacturing.
No. 23
Risas Dental Management LLC
Years named: 3, 2 consecutive
Founded: 2011
Headquarters: Phoenix, Ariz.
Employees: 720, with 206 in Colorado
Locations: 7 in Colorado
Facts: Risas Dental focuses on providing quality,k affordable dental care and braces.
No. 24
Encompass Health
Years named: 7, 3 consecutive
Founded: 1998
Headquarters: Dallas, Texas
Employees: 12,500, with 279 in Colorado
Locations: 7 in Colorado
Facts: Encompass Health is one of the country’s largest Medicare-certified home health and hospice service providers in the nation. The company provides skilled nursing, physical therapy, occupational therapy, speech therapy and additional services from more than 300 branch offices.
No. 25
Guild Education
Years named: 1
Founded: 2015
Headquarters: Denver
Employees: 406, with 404 in Colorado
Locations: 1
Facts: Guild Education works with leading employers including Walmart, The Walt Disney Company, Lowe’s, Chipotle and Discover to build strategic higher education programs for their employees. Its programs help adult learners with programs including high school completion, trade programs, and associate, bachelor and master’s degrees.
No. 26
Slalom Consulting
Years named: 9
Founded: 2001
Headquarters: Seattle
Employees: 7,800, with 324 in Colorado
Locations: 1 in Colorado
Facts: Slalom is a business and technology consulting firm focused on strategy, technology, and business transformation. The company has strong partnerships with more than 200 leading technology providers including Amazon Web Services, Google Cloud, Microsoft, Salesforce, and Tableau.
No. 27
LONG Building Technologies
Years named: 6
Founded: 1965
Headquarters: Littleton
Employees: 440, with 251 in Colorado
Locations: 4 in Colorado
Facts: LONG Building using building technology services to make commercial, institutional, and industrial facilities of all types and sizes automated, efficient, green and safe.
No. 28
Adolfson & Peterson Construction
Years named: 4, 3 consecutive
Founded: 1946
Headquarters: Minneapolis, Minn.
Employees: 709, with 315 in Colorado
Locations: 1
Facts: Adolfson & Peterson Construction is a family-owned company that offers preconstruction and construction services to the commercial, education, healthcare, hospitality, industrial, multifamily, municipal, recreation and senior living industries.
No. 29
AllHealth Network
Years named: 2
Founded: 1955
Headquarters: Englewood
Employees: 421
Locations: 13
Facts: AllHealth Network provides behavioral healthcare to more than 17,000 children, adults and older adults, families and couples. Its services include counseling, psychiatry, crisis services, substance abuse treatment, an adult acute treatment unit, services offered to the criminal justice system, vocational and social rehabilitation, school-based services and an on-site pharmacy.
No. 30
SEMA Construction Inc.
Years named: 3
Founded: 1991
Headquarters: Centennial
Employees: 550, with 351 in Colorado
Locations: 1
Facts: SEMA Construction is a full-service contractor that provides civil and industrial construction services. Approximately 80 percent of its business comes from government contracts awarded through a competitive bid process.
No. 31
Aimco
Years named: 8
Founded: 1994
Headquarters: Denver
Employees: 972, with 306 in Colorado
Locations: 10 in Colorado
Facts: Aimco is a Real Estate Investment Trust headquartered in Denver that is one of the largest owners and operators of apartment properties in 17 states and the District of Columbia.
No. 32
Personal Capital
Years named: 6
Founded: 2009
Headquarters: San Carlos, Calif.
Employees: 386, with 165 in Colorado
Locations: 1 in Colorado
Facts: Personal Capital is an industry-leading digital wealth management company that manages more than $12 billion in assets.
No. 33
New York Life Insurance Co.
Years named: 8
Founded: 1845
Headquarters: New York
Employees: 11,388, with 202 in Colorado
Locations: 4
Facts: The Colorado General Office is committed to helping its customers build, protect and preserve wealth, by analyzing their clients’ insurance and financial needs.
No. 34
Syncroness Inc.
Years named: 3, 2 consecutive
Founded: 1998
Headquarters: Westminster
Employees: 154
Locations: 1
Facts: Syncroness is a full-service engineering company that provides technical product development and engineering work packages for companies and organizations in the United States and internationally.
No. 35
Coalfire Systems Inc.
Years named: 3
Founded: 2001
Headquarters: Westminster
Employees: 729, with 209 in Colorado
Locations: 2 in Colorado
Facts: Coalfire is a cybersecurity consulting firm that works with its clients to manage risk and avert cybersecurity threats.
No. 36
OpenTable
Years named: 1
Founded: 1998
Headquarters: San Francisco
Employees: 1,200, with 258 in Colorado
Locations: 2 in Colorado
Facts: OpenTable is the world’s leading online restaurant reservations service and works with more than 54,000 restaurants in 20 countries. The company leverages data to provide personalized restaurant recommendations.
No. 37
ICAT
Years named: 6
Founded: 1998
Headquarters: Broomfield
Employees: 216, with 187 in Colorado
Locations: 1
Facts: ICAT provides catastrophe insurance coverage to business owners and homeowners located in hurricane- and earthquake-exposed areas of the United States.
No. 38
The MITRE Corporation
Years named: 1
Founded: 1958
Headquarters: Bedford, Mass.
Employees: 8,695, with 219
Locations: 1 in Colorado
Facts: MITRE manages federally-funded research and development centers that support several U.S. government agencies. The company provided the technical know-how to pioneer the nation’s first air defense and air traffic control systems.
No. 39
Workplace ELEMENTS
Years named: 1
Founded: 2008
Headquarters: Denver
Employees: 152
Locations: 2
Facts: Workplace ELEMENTS sells office furniture and fixtures, and designs workplaces that foster collaboration, communication and productivity.
No. 40
Lohmiller and Co.
Years named: 6, 4 consecutive
Founded: 1990
Headquarters: Denver
Employees: 190
Locations: 4
Facts: Lohmiller and Company is an independently owned wholesale distributor of heating, ventilation and air conditioning equipment, parts and supplies. The company primarily distributes Carrier products in Colorado and Wyoming. We primarily distribute products for Carrier Corporation in Colorado and Wyoming.
No. 41
PorchLight Real Estate Group
Years named: 7
Founded: 2005
Headquarters: Denver
Employees: 207
Locations: 5
Facts: PorchLight Real Estate Group offers concierge-style real estate services in the greater Denver metro area and Boulder. A 100% women-owned business, PorchLight has received numerous accolades. In addition to being named to The Denver Post’s Top Workplaces list for seven years in a row and has been recognized as one of the Top Women-Owned Companies by both the Denver Business Journal and ColoradoBiz Magazine.
No. 42
SpotX
Years named: 6, 1 consecutive
Founded: 2007
Headquarters: Broomfield
Employees: 487, with 278 in Colorado
Locations: 1 in Colorado
Facts: SpotX is a global video ad serving platform that provides digital media owners with the ability to monetize content with video advertising on desktop, mobile and connected devices.
No. 43
Wireless Vision
Years named: 1
Founded: 2004
Headquarters: Bloomfield Hills, Mich.
Employees: 3,410, with 156 in Colorado
Locations: 1 in Colorado
Facts: Wireless Vision, which operates more than 650 T-Mobile-branded retail stores nationwide, is the largest T-Mobile exclusive partner in the United States.
No. 44
Tallgrass Energy
Years named: 5
Founded: 2012
Headquarters: Lakewood
Employees: 807, with 371 in Colorado
Locations: 14 in Colorado
Facts: Tallgrass Energy transports crude oil and natural gas from the Rocky Mountains, Upper Midwest and Appalachian regions. The company owns and operates more than 8,300 miles of nature gas pipeline, more than 850 miles of crude pipeline and more than 300 miles of water pipeline across the United States.
No. 45
Mortenson Construction
Years named: 6, 4 consecutive
Founded: 1954
Headquarters: Minneapolis, Minn.
Employees: 4,500, with 368
Locations: 1 in Colorado
Facts: Mortenson Construction was named the 18th Top Contractor of the Top 400 contractors in the U.S. by Engineering News-Record. Mortenson has built some of Denver’s most iconic projects, including Denver International Airport Hotel and Transit Center, Coors Field, Pepsi Center, Denver Art Museum and the Ralph L. Carr Colorado Judicial Center.
No. 46
Haselden Construction
Years named: 5
Founded: 1973
Headquarters: Centennial
Employees: 415, with 409 in Colorado
Locations: 3 in Colorado
Facts: Haselden Construction is a top general contractor on the Front Range that has provided exceptional, client-centric construction services in Colorado, Wyoming and the Western United States. The company provides general contracting, construction management, design-build, turnkey development and preconstruction services.
Logo: Yes
Photo: None
No. 47
Security Service Federal Credit Union
Years named: 3, 1 consecutive
Founded: 1956
Headquarters: San Antonio, Texas
Employees: 1,736, with 292 in Colorado
Locations: 17 in Colorado
Facts: Security Service Federal Credit Union is one of the nation’s top 10 credit unions. It has more than $9.5 billion in assets and 774,000 members in Texas, Colorado and Utah.
No. 48
Xactly Corporation
Years named: 3
Founded: 2005
Headquarters: San Jose, Calif.
Employees: 600, with 245 in Colorado
Locations: 1 in Colorado
Facts: Xactly delivers a scalable, cloud-based enterprise platform for sales organizations including setting sales quotas, planning territories, managing incentive compensation and predictive analytics.
No. 49
General Air Service & Supply
Years named: 1
Founded: 1969
Headquarters: Denver
Employees: 188, with 184 in Colorado
Locations: 9 in Colorado
Facts: General Air Service & Supply is a third-generation, family-owned business and the largest independent gas and welding supplier in Colorado.
