Editor’s note: The information contained in this list was taken from the Energage database — information provided by the businesses themselves. 

No. 1

Custom Made Meals

Years named: 3

Founded: 2009

Headquarters: Denver 

Employees: 430

Facts: Custom Made Meals creates meals for 15,000 groceries in 48 states.

No. 2

West + Main Homes

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

Madison & Co. Properties

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

Visiting Angels of Denver

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

Friday Health Plans

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

8z Real Estate

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

Galloway & Company Inc.

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

Renewal by Andersen

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

Physician Health Partners

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

Ping Identity Corp.

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

Progressive Insurance

Years named: 4

Founded: 1937

Headquarters: Mayfield Village, Ohio

Employees: 42,914, with 415 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

Delta Dental of Colorado

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

PorchLight Real Estate Group

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

CableLabs

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

LONG Building Technologies

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

Connect for Health

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

Samuel Engineering Inc. 

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

Slalom Consulting

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

Turner Construction Company

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

EOG Resources

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

SpotX

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

Wiland

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

Ulteig

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

Lohmiller and Company

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

Syncroness Inc.

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

Burns & McDonnell

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

Echelon Property Group

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

Spyderco Inc.

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

Personal Capital

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

AllHealth Network

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

General Air Service & Supply

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

MTech Mechanical

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

Griffis Blessing Inc.

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

Hammersmith Management

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

Weifield Group Contracting

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

Aurora Organic Dairy

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

Uplight

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

First Western Financial

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

ICAT

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

Mission Rock Residential

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

CoreSite LLC

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

AFC Urgent Care Denver

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

LPR Construction Co.

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

AIR Communities

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

Tyler Technologies 

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

Tallgrass Energy

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

Risas Dental Management LLC

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

Haselden Construction

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

Xactly Corporation

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

Coalfire Systems Inc.

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

Shaw Construction

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.