Editor’s note: The information contained in this list was taken from the Energage database — information provided by the businesses themselves.
No. 1
Years named: 3
Founded: 2009
Headquarters: Denver
Employees: 430
Facts: Custom Made Meals creates meals for 15,000 groceries in 48 states.
No. 2
Years named: 3
Founded: 2017
Headquarters: Lakewood
Employees: 170
Facts: West + Main is an independently-owned and operated boutique real estate company specializing in residential properties in Downtown Denver and the Front Range communities. West + Main has four innovative storefront locations in Applewood, RiNo, Littleton and Louisville.
No. 3
Years named: 8
Founded: 2008
Headquarters: Denver
Employees: 189
Facts: Madison & Co. focuses on providing broker support and a collaborative team environment with an extensive mentoring program.
No. 4
Years named: 8, 6 consecutive
Founded: 2008
Headquarters: Wheat Ridge
Employees: 177
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
Years named: 1
Founded: 2015
Headquarters: Alamosa
Employees: 208
Facts: Friday Health Plans builds insurance plans for people and small businesses. The company offers affordable health plans that help members stay healthy and cover them if they get sick or hurt.
No. 6
Years named: 7
Founded: 2009
Headquarters: Boulder
Employees: 214
Facts: 8z Real Estate has 12 offices and more than 150 agents throughout Colorado. The company provides in-house mortgage, title, rentals, and insurance services.
No. 7
Years named: 4
Founded: 1982
Headquarters: Greenwood Village
Employees: 178, with 161 in Colorado
Facts: Based in the Denver Tech Center, Galloway & Company provides planning, architecture, and engineering services for projects that range from half-acre pad sites to master-planned communities.
No. 8
Years named: 7
Founded: 2011
Headquarters: Smithfield, Rhode Island
Employees: 1,200, 204 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.
No. 9
Years named: 9, 5 consecutive
Founded: 1996
Headquarters: Denver
Employees: 264
Facts: Physician Health Partners works with PHPprime and Colorado Community Health Alliance to provide healthcare to more than 500,000 Coloradans in Denver and Colorado Springs.
No. 10
Years named: 7, 4 consecutive
Founded: 2002
Headquarters: Denver
Employees: 938, with 395 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. 11
Years named: 4
Founded: 1937
Headquarters: Mayfield Village, Ohio
Employees: 42,914, with 2,600 in Colorado
Facts: Progressive was the first auto insurance group to launch a website, the first publicly held company to report results monthly, and the first insurance company to offer pet injury coverage.
No. 12
Years named: 2
Founded:1968
Headquarters: Denver
Employees: 211
Facts: Delta Dental of Colorado helps its customers create healthy smiles by providing dental care benefits to its 1.4 million customers.
No. 13
Years named: 8
Founded: 2005
Headquarters: Denver
Employees: 183
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 eight 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. 14
Applewood Plumbing Heating & Electric
Years named: 8, 5 consecutive
Founded: 1973
Headquarters: Denver
Employees: 168
Facts: Applewood Plumbing Heating & Electric, known for its bright orange trucks, is one of Colorado’s only family-owned plumbing, heating, drain cleaning, cooling and electrical repair companies.
No. 15
Years named: 1
Founded: 1988
Headquarters: Louisville
Employees: 235
Facts: For nearly 30 years, CableLabs has been at the forefront of innovation, transforming how humans, communities and industries connect. CableLabs is the leading innovation and research and development lab for the cable industry.
No. 16
Years named: 7
Founded: 1965
Headquarters: Littleton
Employees: 436, with 242 in Colorado
Facts: LONG Building uses building technology services to make commercial, institutional, and industrial facilities of all types and sizes automated, efficient, green and safe.
No. 17
Years named: 1
Founded: 2011
Headquarters: Denver
Employees: 158
Facts: Connect for Health Colorado is the state’s health insurance marketplace and helps individuals, families and small employers purchase health insurance and get financial help to reduce costs.
No. 18
Years named: 3
Founded: 1996
Headquarters: Greenwood Village
Employees: 170
Facts: Samuel Engineering is a woman-owned and minority-owned company that provides engineering, procurement and construction management services to the mining, oil and gas, power and building systems worldwide.
No. 19
Years named: 10
Founded: 2001
Headquarters: Seattle
Employees: 7,800, with 484 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. 20
Years named: 4
Founded: 1902
Headquarters: New York
Employees: 10,439, with 234 in Colorado
Facts: Turner Construction Company has a staff of almost 10,000 employees and completes $15 billion of construction on 1,500 projects each year.
No. 21
Years named: 3
Founded: 1985
Headquarters: Houston
Employees: 2,951, with 212 in Colorado
Facts: EOG is one of the largest exploration and production companies in the United States with proved reserves in the United States, Trinidad and Canada. The company strives to maintain low operating costs while providing a continuing commitment to environmental, social, and governance sustainability.
No. 22
Years named: 7, 2 consecutive
Founded: 2007
Headquarters: Broomfield
Employees: 487, with 276 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. 23
Years named: 3
Founded: 2005
Headquarters: Niwot
Employees: 242
Facts: Wiland is a leading marketing intelligence agency that provides data-driven marketing solutions to thousands of clients across the United States.
No. 24
Years named: 3
Founded: 1944
Headquarters: Fargo, N.D.
Employees: 662, with 204 in Colorado
Facts: Ulteig has more than 70 years of experience in the engineering design industry and provides its expertise in various infrastructure sectors, including power, renewables, transportation and communications.
No. 25
Years named: 7, 5 consecutive
Founded: 1990
Headquarters: Denver
Employees: 179
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.
No. 26
Years named: 4, 3 consecutive
Founded: 1998
Headquarters: Westminster
Employees: 161
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. 27
Years named: 1
Founded: 1898
Headquarters: Kansas City, Mo.
Employees: 7,600, with 251 in Colorado
Facts: Burns & McDonnell is a 100% employee-owned architecture, engineering, and construction company made up of more than 7,600 engineers, architects, construction professionals, scientists, consultants and entrepreneurs with offices throughout the world.
No. 28
Security Service Federal Credit Union
Years named: 4, 2 consecutive
Founded: 1956
Headquarters: San Antonio, Texas
Employees: 1,750, with 250 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. 29
Years named: 4
Founded: 2010
Headquarters: Greenwood Village
Employees: 334
Facts: Echelon is a Colorado-centric property management company with more than 20 years of experience that manages more than 12,000 units.
No. 30
Years named: 8
Founded: 1976
Headquarters: Golden
Employees: 150
Facts: Spyderco started as a family-run business that operated from the back of a bread truck and has evolved to become a worldwide leader in the cutlery industry.
No. 31
Years named: 7
Founded: 2009
Headquarters: Redwood City, Calif.
Employees: 462, with 180 in Colorado
Facts: Personal Capital is an industry-leading digital wealth management company that manages more than $16.5 billion in assets.
No. 32
Years named: 3
Founded: 1955
Headquarters: Englewood
Employees: 450
Facts: AllHealth Network provides behavioral health care 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. 33
Years named: 2
Founded: 1969
Headquarters: Denver
Employees: 188 in Colorado
Facts: General Air Service & Supply is a third-generation, family-owned business and the largest independent gas and welding supplier in Colorado.
No. 34
Years named: 1
Founded: 2002
Headquarters: Westminster
Employees: 487
Facts: MTech Mechanical provides mechanical design, building and maintenance services to commercial and industrial clients across Colorado. The company offers full-service HVAC and plumbing services.
No. 35
Years named: 1
Founded: 1985
Headquarters: Colorado Springs
Employees: 285 in Colorado
Facts: Griffis Blessing specializes in multifamily communities and manages more than 7,000 apartment units in seven communities along the Front Range.
No. 36
Adolfson & Peterson Construction
Years named: 5, 4 consecutive
Founded: 1946
Headquarters: Aurora
Employees: 733, with 344 in Colorado
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. 37
Years named: 4
Founded: 1981
Headquarters: Englewood
Employees: 190 in Colorado
Facts: Hammersmith specializes in full-service community association management. With expertise in high-rises, townhomes, condominiums, single-family homes, large-scale communities, metro districts and developer projects, Hammersmith has the experience and expertise to foster an environment where our associations can thrive and prosper.
No. 38
Years named: 10
Founded: 2002
Headquarters: Centennial
Employees: 562, with 457 in Colorado
Facts: Weifield Group Contracting, a national leader in cutting-edge electrical construction, builds energy-efficient buildings in Colorado, Texas and Wyoming.
No. 39
Years named: 1
Founded: 1976
Headquarters: Boulder
Employees: 780, 491 in Colorado
Facts: Aurora Organic Dairy is a leading producer and processor of store-brand organic milk for U.S. retailers. The company operates certified-organic dairy farms in Colorado and Texas and organic dairy processing plants in Colorado and Missouri.
No. 40
Years named: 7
Founded: 2019
Headquarters: Boulder
Employees: 209 in Colorado
Facts: Uplight, the technology partner of energy providers transitioning to clean energy, delivers personalized energy experiences for consumers worldwide. Uplight was established in 2019 by uniting six industry leaders across different areas.
No. 41
Years named: 1
Founded: 2002
Headquarters: Denver
Employees: 304
Facts: First Western Financial, Inc., a financial services holding company, and its wholly-owned subsidiary, First Western Trust, operates in Colorado, Arizona, Wyoming, and California. First Western Trust provides a fully integrated suite of wealth management services on a private trust bank platform, including a comprehensive selection of deposit, loan, trust, wealth planning, and investment management products and services.
No. 42
Years named: 7
Founded: 1998
Headquarters: Broomfield
Employees: 216
Facts: ICAT provides catastrophe insurance coverage to business owners and homeowners located in hurricane- and earthquake-exposed areas of the United States.
No. 43
Years named: 1
Founded: 2012
Headquarters: Denver
Employees: 707, with 293 in Colorado
Facts: Mission Rock Residential provides quality apartment homes in 13 states. Each community is situated on beautifully landscaped grounds and is outfitted with amenities ranging from fitness and business centers to swimming pools, year-round spas, and outdoor living areas.
No. 44
Years named: 4
Founded: 2001
Headquarters: Denver
Employees: 480, with 150 in Colorado
Facts: CoreSite Realty Corporation delivers secure, reliable, high-performance data center and interconnection solutions to a growing customer ecosystem in major metropolitan areas including Denver, Boston, Chicago, Los Angeles and New York.
No. 45
Years named: 3, 2 consecutive
Founded: 2013
Headquarters: Denver
Employees: 153
Facts: AFC Urgent Care offers fast and comprehensive medical care with short wait times and reasonable rates. The company provides quick and thorough healthcare services with an on-site laboratory and digital X-Ray machine to improve diagnosis and treatment of illnesses or injuries.
No. 46
Years named: 3
Founded: 1979
Headquarters: Loveland
Employees: 450, with 183 in Colorado
Facts: LPR Construction has been a leading name in structural steel erection for more than 40 years. The company also is a leader in heavy industrial construction and plant services.
No. 47
Years named: 9
Founded: 2020 (born from Aimco, which was founded in 1994)
Headquarters: Denver
Employees: 873, with 317 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 15 states and the District of Columbia.
No. 48
Years named: 1
Founded: 1966
Headquarters: Plano, Texas
Employees: 5,600, with 155 in Colorado
Facts: Tyler Technologies provides integrated software and technology services to the public sector. The company empowers local, state and federal government entities to operate more efficiently and has installed more than 27,000 systems across more than 11,000 sites in all 50 states, Canada, the Caribbean, Australia, and other countries.
No. 49
Years named: 6
Founded: 2012
Headquarters: Leawood, Kan.
Employees: 804, with 375 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 natural gas pipeline, more than 850 miles of crude pipeline and more than 300 miles of water pipeline across the United States.
No. 50
Years named: 4, 3 consecutive
Founded: 2011
Headquarters: Phoenix, Ariz.
Employees: 726, with 181 in Colorado
Facts: Risas Dental focuses on providing quality, affordable dental care and braces.
No. 51
Years named: 6
Founded: 1973
Headquarters: Centennial
Employees: 415, with 323 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.
No. 52
Years named: 4
Founded: 2005
Headquarters: San Jose, Calif.
Employees: 623, with 202 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. 53
Years named: 4
Founded: 2001
Headquarters: Westminster
Employees: 783, with 200 in Colorado
Facts: Coalfire is a cybersecurity consulting firm that works with its clients to manage risk and avert cybersecurity threats.
No. 54
Years named: 3
Founded: 1956
Headquarters: Denver
Employees: 196, with 177 in Colorado
Facts: Shaw Construction builds cutting-edge structures for resorts and hospitality, residential and multi-family, mountain builds, higher education, commercial and office space, and arts and cultural centers across the Rocky Mountain region.
No. 55
SCI Funeral Services of Colorado
Years named: 1
Founded: 1926
Headquarters: Wheat Ridge
Employees: 24,082, with 215 in Colorado
Facts: SCI Funeral Services of Colorado is the largest funeral and cemetery provider in the Denver metro area. The company owns eight funeral homes, seven cemeteries and one personal care center in the area.
