Editor’s note: The information in this list was taken from the Energage database. The businesses provide the data, and it may have changed since it was first entered.
No. 1
Years ranked: 5, 3 consecutive
Founded: 1982
Headquarters: Lakewood
Employees: 560, with 521 in Colorado
Locations: 9
Facts: RE/MAX Professionals leads the real estate industry in sales, technology, and professionalism.
No. 2
Years ranked: 2
Founded: 1952
Headquarters: Boulder
Employees: 591
Locations: 20
Facts: Elevations is an award-winning Colorado financial institution with over $3 billion in assets and over 170,000 members.
No. 3
Years ranked: 6
Founded: 2012
Headquarters: Denver
Employees: 900
Facts: Ibotta provides a free app that offers cash-back rewards at over 2,000 retailers, including grocery stores, pharmacies, clothing stores, and restaurants.
No. 4
Years ranked: 8
Founded: 1915
Headquarters: Denver
Employees: 665
Facts: Pinnacol Assurance provides workers’ compensation protection to 57,000 Colorado employers and their employees.
No. 5
Years ranked: 7
Founded: 1937
Headquarters: Mayfield Village, Ohio
Employees: 60,000, with 2,304 in Colorado
Facts: Progressive is the second largest auto insurer in the country, a leading seller of commercial auto, motorcycle, and boat insurance, and one of the top 15 homeowners insurance carriers. The company 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. 6
Years ranked: 12
Founded: 1922
Headquarters: St. Louis, Mo.
Employees: 52,000, with 869 in Colorado
Locations: 366
Facts: Edward Jones has nearly 19,000 financial advisers who work directly with 7 million clients and help them create personalized investment strategies.
No. 7
Years ranked: 1
Founded: 2003
Headquarters: Denver
Employees: 529
Facts: LINX, one of the largest technology integrators in the United States, unifies network cabling, multimedia, security, and wireless systems under one umbrella. LINX has completed more than $1 billion of technology-related solutions in all 50 states.
No. 8
Raising Cane’s Chicken Fingers
Years ranked: 2
Founded: 1996
Headquarters: Plano, Texas
Employees: 50,000, with 1,369 in Colorado
Locations: 20
Facts: Raising Cane’s Chicken Fingers is one of America’s fastest-growing restaurant companies. It has over 700 restaurants in 36 states and five countries, with over 50 new restaurants under construction.
No. 9
Years ranked: 10, 5 consecutive
Founded: 1985
Headquarters: Breckenridge
Employees: 645
Locations: 7
Facts: Breckenridge Grand Vacations is a family-owned company that builds, sells, and manages fractional resorts in Breckenridge.
No. 10
Years ranked: 6
Founded: 1955
Headquarters: Englewood
Employees: 529
Locations: 12
Facts: AllHealth Network provides behavioral health care to more than 20,000 children, adults, 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. 11
Years ranked: 9
Founded: 1907
Headquarters: Englewood
Employees: 1,085
Locations: 1
Facts: Craig Hospital is a nonprofit rehabilitation and research hospital specializing in the neurorehabilitation and research of patients with spinal cord and brain injuries.
No. 12
Bright Horizons Family Solutions LLC
Years ranked: 10
Founded: 1986
Headquarters: Watertown, Mass.
Employees: 25,971, with 630 in Colorado
Locations: 15 in Colorado
Facts: Bright Horizons operates over 1,000 childcare centers worldwide and partners with more than 1,350 leading employers across nearly every industry.
No. 13
Years ranked: 6
Founded: 2003
Headquarters: Lakewood
Employees: 1,025
Locations: 6
Facts: Encore Electric’s award-winning team excels at complex technical projects, such as hospitals, universities, data centers, office structures, and museums.
No. 14
Years ranked: 3
Founded: 1998
Headquarters: Denver
Employees: 577
Locations: 35
Facts: Vectra serves Colorado’s small and middle-market businesses and their owners, managers, and employees through full-service branches.
No. 15
Years ranked: 5, 4 consecutive
Founded: 1973
Headquarters: Rosemead, Calif.
Employees: 50,699, with 759 in Colorado
Facts: Panda Restaurant Group is the parent company of Panda Express, Panda Inn, and Hibachi-San. The family-owned company has 2,500 locations worldwide.
No. 16
Years ranked: 1
Founded: 1927
Headquarters: Denver
Employees: 550
Facts: Catholic Charities, Archdiocese of Denver, provides services to 50,000 people through 30 programs in northern Colorado. It focuses on defending human dignity and caring for children, families, and those in need.
No. 17
Years ranked: 11, 3 consecutive
Founded: 1999
Headquarters: Denver
Employees: 70,000, with 3,885 in Colorado
Facts: DaVita provides kidney dialysis services at 2,694 outpatient dialysis centers in the United States and other countries.
No. 18
Years ranked: 7
Founded: 1962
Headquarters: Reston, Va.
Employees: 23,000, with 660 in Colorado
Facts: CACI International Inc. provides information technology services to many branches of the federal government, including defense, homeland security, intelligence, and healthcare.
No. 19
Years ranked: 6
Founded: 1993
Headquarters: Charleston, S.C.
Employees: 15,000, including 1,284 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. 20
Years ranked: 13
Founded: 2001
Headquarters: Seattle
Employees: 9,000, with 636 in Colorado
Facts: Slalom is a consulting firm focused on strategy, technology, and business transformation. The company has partnerships with over 200 leading technology providers, including Amazon Web Services, Google Cloud, Microsoft, Salesforce, and Tableau.
No. 21
Jefferson Center For Mental Health
Years ranked: 12
Founded: 1958
Headquarters: Wheat Ridge
Employees: 750
Locations: 9
Facts: The Jefferson Center has been a nonprofit, community-focused mental health care and substance use treatment provider for 65 years. The center is part of the statewide mental health crisis system.
No. 22
Years named: 12
Founded: 2002
Headquarters: Centennial
Employees: 708, with 557 in Colorado
Locations: 2
Facts: Weifield Group Contracting is a national leader in cutting-edge electrical construction. It builds energy-efficient buildings in Colorado, Texas, and Wyoming.
No. 23
Years ranked: 10
Founded: 1948
Headquarters: Denver
Employees: 1,219
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, and internal and aesthetic medicine. It was the first Denver hospital to allow Jewish, African American, and female physicians to practice medicine.
No. 24
Years ranked: 3
Founded: 1891
Headquarters: Greenwood Village
Employees: 11,500, with 2,553 in Colorado
Facts: Empower offers industry-leading solutions to help people manage their money for today while saving more for tomorrow.
No. 25
Years ranked: 6
Founded: 1939
Headquarters: Santa Rosa, Calif.
Employees: 14,500, with 875 in Colorado
Locations: 2
Facts: Keysight manufactures equipment and software to design, test, manufacture, and optimize electronics technology.
No. 26
Years ranked: 12
Founded: 1973
Headquarters: Westlake, Texas
Employees: 35,000, with 4,509 in Colorado
Location: 6 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. 27
Years ranked: 2
Founded: 2010
Headquarters: Pueblo
Employees: 600
Facts: For over 15 years, GOAL High School has delivered innovative blended online learning experiences and provided cutting-edge technology to more than 6,000 students in 40 locations around the state.
No. 28
Years ranked: 5
Founded: 1870
Headquarters: Arvada
Employees: 708
Facts: Arvada, a Denver suburb, became a home-rule municipal corporation in 1963. As of 2020, it was the seventh most populated city in Colorado, with 124,402 residents.
No. 29
Years ranked: 4
Founded: 1967
Headquarters: Greeley
Employees: 1,173
Facts: Aims Community College is a public community college serving northern Colorado with locations in Greeley, Windsor, Fort Lupton, and Loveland.
No. 30
Years ranked: 2
Founded: 1996
Headquarters: Englewood
Employees: 1,100, with 550 in Colorado
Locations: 4
Facts: Zynex Medical specializes in manufacturing and selling non-invasive medical devices for pain management, rehabilitation, and patient monitoring.
No. 31
Years ranked: 1
Founded: 1975
Headquarters: Salt Lake City, Utah
Employees: 67,900, with 10,770 in Colorado
Facts: Intermountain Health, a team of nearly 68,000 caregivers, serves the healthcare needs of people across the Intermountain West, primarily in Utah, Idaho, Nevada, Colorado, Montana, Wyoming, and Kansas. The nonprofit health system operates clinics, a medical group, affiliate networks, hospitals, home care, telehealth, health insurance plans, and other services.
