Table of Contents
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.
See the small- and medium-sized category winners here.
No. 1
Salesforce
Years named: 1
Founded: 1999
Headquarters: San Francisco, Calif.
Employees: 40,000, with 508 in Colorado
Locations: 2 in Colorado
No. 2
Edward Jones
Years named: 8
Founded: 1922
Headquarters: St. Louis, Mo.
Employees: 47,317, with 855 in Colorado
Locations: 373 in Colorado
No. 3
Encore Electric Inc.
Years named: 2
Founded: 2003
Headquarters: Lakewood
Employees: 856, with 770 in Colorado
Locations: 1 in Colorado
No. 4
Progressive Insurance
Years named: 3
Founded: 1937
Headquarters: Mayfield Village, Ohio
Employees: 39,966, with 2,483 in Colorado
Locations: 4 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. 5
Breckenridge Grand Vacations
Years named: 6
Founded: 1985
Headquarters: Breckenridge
Employees: 630
Locations: 1
Facts: Breckenridge Grand Vacations is a family-owned company that builds, sells and manages fractional resorts in Breckenridge.
No. 6
RingCentral
Years named: 6, 4 consecutive
Founded: 2003
Headquarters: Belmont, Calif.
Employees: 4,048, with 616 in Colorado
Locations: 2 in Colorado
Facts: RingCentral empowers employees to work better together from any location using its unified voice, video meetings, team messaging, digital customer engagement, and integrated contact center solutions.
No. 7
Zillow Group
Years named: 4
Founded: 2006
Headquarters: Seattle
Employees: 5,200, with 506 in Colorado
Locations: 3 in Colorado
Facts: Zillow Group is an online database of real estate and home-related companies that focus on all stages of the home lifecycle: renting, buying, selling, financing and home improvement.
No. 8
Keysight Technologies
Years named: 2
Founded: 2014
Headquarters: Santa Rosa, Calif.
Employees: 13,480, with 896 in Colorado
Locations: 3 in Colorado
Facts: Keysight manufactures equipment and software to design, test, manufacture and optimize electronics technology.
No. 9
Pinnacol Assurance
Years named: 4
Founded: 1915
Headquarters: Denver
Employees: 656
Locations: 1
Facts: Pinnacol Assurance provides workers compensation protection to 57,000 Colorado employers and their employees.
No. 10
Gusto
Years named: 3
Founded: 2011
Headquarters: San Francisco
Employees: 700, with 693 in Colorado
Locations: 1 in Colorado
Facts: Gusto processes tens of billions of dollars of payroll and enables thousands of businesses to provide employee benefits, including health insurance, retirement plans and college savings plans.
No. 11
Booz Allen Hamilton
Years named: 1
Founded: 1914
Headquarters: McLean, Va.
Employees: 27,000 with 611 in Colorado
Locations: 2
Facts: Booz Allen Hamilton is a consulting firm with experts in analytics, digital, engineering, and cybersecurity that helps clients choose the right strategy and technology to realize their vision.
No. 12
Craig Hospital
Years named: 7
Founded: 1907
Headquarters: Englewood
Employees: 1,056
Locations: 1
Facts: Craig Hospital is a nonprofit rehabilitation and research hospital that exclusively specializes in the neurorehabilitation and research of patients with spinal cord and brain injuries.
No. 13
Greystar
Years named: 2
Founded: 1993
Headquarters: Greenwood Village
Employees: 14,800, including 688 in Colorado
Locations: 85 in Colorado
Facts: Greystar provides property management services for residential housing, apartment homes, furnished corporate housing, and mixed-use properties that incorporate retail space.
No. 14
Fidelity Investments
Years named: 4, 2 consecutive
Founded: 1946
Headquarters: Boston
Employees: 40,000, with 900 in Colorado
Locations: 1 in Colorado
Facts: Fidelity offers financial and retirement planning services and was one of the first U.S. companies to provide student loan repayment assistance to employees. More than 330 Colorado employees have saved $1.3 million since the program started in 2016.
No. 15
OnDeck Capital Inc.
Years named: 1
Founded: 2007
Headquarters: New York
Employees: 736, with 576 in Colorado
Locations: 1 in Colorado
Facts: OnDeck has issued more than $12 billion in loans to more than 100,000 small businesses in more than 700 industries since the company was founded in 2007.
No. 16
Charles Schwab & Co.
Years named: 8
Founded: 1971
Headquarters: San Francisco
Employees: 19,500, with 4,136 in Colorado
Locations: 8 in Colorado
Facts: Charles Schwab offers a full range of securities brokerage, banking, money management and financial advisory services to individual investors and independent investment advisors.
No. 17
Saunders Construction Inc.
Years named: 3
Founded: 1972
Headquarters: Englewood
Employees: 539
Locations: 3
Facts: Saunders Construction is one of Colorado’s largest construction contractors and provides design-build, public-private partnership and commercial real estate development services.
No. 18
Accenture
Years named: 4, 3 consecutive
Founded: 1951
Headquarters: Philadelphia
Employees: 15,000, including 1,056 in Colorado
Locations: 1 in Colorado
Facts: Accenture provides professional services in strategy, consulting, digital, technology and operations.
No. 19
Rose Medical Center
Years named: 6
Founded: 1948
Headquarters: Denver
Employees: 1,200 with 1,110 in Colorado
Locations: 1
Facts: Rose Medical Center is a leader in comprehensive women’s health, surgical and endoscopy services, heart and vascular, orthopedics and spine surgery, total joint replacement, bariatrics, and sports, internal and aesthetic medicine. It was the first Denver hospital to allow Jewish, African American and female physicians to practice medicine.
No. 20
FirstBank
Years named: 9
Founded: 1963
Headquarters: Lakewood
Employees: 3,011, including 2,829 in Colorado
Locations: 110 in Colorado
Facts: Colorado’s largest locally-owned bank offers retail banking and financing solutions to consumers and businesses.
No. 21
American Financing
Years named: 3
Founded: 2001
Headquarters: Aurora
Employees: 533
Locations: 1
Facts: American Financing is a family-owned, minority-owned mortgage banker licensed in all 50 states that specializes in residential mortgages and home refinancing.
No. 22
USAA
Years named: 6
Founded: 1922
Headquarters: San Antonio, Texas
Employees: 34,850, with 1,910 in Colorado
Locations: 1 in Colorado
Facts: USAA is a diversified financial services group originally formed by a group of Army officers who wanted to self-insure each other and formed the United States Army Automobile Association. USAA has since expanded to offer banking and insurance services to past and present members of the Armed Services.
No. 23
Clinica Campesina/Family Health Services
Years named: 8, 5 consecutive
Founded: 1977
Headquarters: Lafayette
Employees: 659, with 625 in Colorado
Locations: 5 in Colorado
Facts: Clinica plays a critical role in providing primary health care services to low-income and/or uninsured Colorado residents.
No. 24
Bright Horizons Family Solutions
Years named: 8
Founded: 1986
Headquarters: Watertown, Mass.
Employees: 32,388, with 818 in Colorado
Locations: 8 in Colorado
Facts: Bright Horizons operates more than 1,000 child care centers worldwide and partners with more than 1,100 leading employers across nearly every industry.
No. 25
Martin Marietta Materials
Years named: 2
Founded: 1993
Headquarters: Raleigh, N.C.
Employees: 9,000, with 1,366 in Colorado
Locations: 50 in Colorado
Facts: Martin Marietta, the largest underground miner of limestone in the U.S., is a leading supplier of building materials, including aggregates, cement, ready mix concrete and asphalt.
No. 26
Mental Health Center of Denver
Years named: 8
Founded: 1989
Headquarters: Denver
Employees: 818
Locations: 32
Facts: The Mental Health Center of Denver serves people with mental illness, trauma, and co-occurring substance abuse disorders. The center provides a walk-in clinic and respite care as part of a statewide network of mental health, substance use and emotional crisis help.
No. 27
Jefferson Center For Mental Health
Years named: 8
Founded: 1958
Headquarters: Wheat Ridge
Employees: 620
Locations: 18
Facts: The Jefferson Center has served as a nonprofit, community-focused mental health care and substance use treatment provider for more than 60 years. The center is part of the statewide mental health crisis system.
No. 28
DaVita Inc.
Years named: 8, 2 consecutive
Founded: 1999
Headquarters: Denver
Employees: 60,000, with 2,735 in Colorado
Locations: 1 in Colorado
Facts: Davita provides kidney dialysis services through more than 3,000 outpatient dialysis centers in the United States and other countries.
No. 29
Sturgeon Electric Company Inc.
Years named: 8
Founded: 1912
Headquarters: Henderson
Employees: 1200, with 908 in Colorado
Locations: 6 in Colorado
Facts: Sturgeon Electric Company provides commercial and industrial electrical construction services, telecommunication services, traffic signals, and high voltage distribution, service and maintenance. Company founder, Dwight “D.D.” Sturgeon, put up the first outdoor Christmas light display to cheer up his sick son.
No. 30
CACI International Inc.
Years named: 3
Founded: 1962
Headquarters: Arlington, Va.
Employees: 22,000, with 1,279 in Colorado
Locations: 1 in Colorado
Facts: CACI International provides information technology services to many branches of the federal government, including defense, homeland security, intelligence, and healthcare.
No. 31
UCHealth
Years named: 7
Founded: 2012
Headquarters: Aurora
Employees: 24,540
Locations: 200
Facts: The UCHealth University of Colorado Hospital is a Level I trauma center and the principal teaching hospital for the University of Colorado School of Medicine. U.S. News and World Report ranked the hospital the best in Colorado and the 15th best in the nation.
No. 32
Murdoch’s Ranch & Home Supply
Years named: 1
Founded: 1994
Headquarters: Bozeman, Mont.
Employees: 1,630, with 599 in Colorado
Locations: 13 in Colorado
Facts: Murdoch’s operates stores in five states and an e-commerce website.
No. 33
Vivage Senior Living
Years named: 2
Founded: 2012
Headquarters: Lakewood
Employees: 3,230, with 2,102
Locations: 31
Facts: Vivage is the largest skilled nursing Medicaid provider in Colorado and offers post-acute rehabilitation, senior living, and long-term care, including home health, hospice and pharmacy services.
No. 34
Nelnet Inc.
Years named: 1
Founded: 1978
Headquarters: Lincoln, Neb.
Employees: 6,200, with 520 in Colorado
Locations: 2
Facts: Nelnet helps students and families plan and pay for their education and makes the administrative processes for schools more efficient with student loan servicing, tuition payment processing, school administration software, and college planning resources.
No. 35
DSST Public Schools
Years named: 6, 4 consecutive
Founded: 2004
Headquarters: Denver
Employees: 867
Locations: 16
Facts: DSST, formerly known as the Denver School of Science and Technology, is a public charter STEM network of 14 schools on eight campuses. Operated in partnership with Denver Public Schools, DSST is one of the top 200 public high schools in the U.S.
No. 36
Nutrien/Nutrien Ag Solutions
Years named: 1
Founded: 2018
Headquarters: Loveland
Employees: 22,000, with 757 in Colorado
Locations: 5
Facts: Nutrien is the world’s largest fertilizer company and produces and distributes 27 million metric tons of potash, nitrogen and phosphate products worldwide.