Technology
Top Workplaces 2025: Best midsize companies
The rankings are put together by Energage, The Denver Post’s survey partner for Top Workplaces.
No. 1
Madison & Co. Properties
Years ranked: 12
Founded: 2008
Headquarters: Greenwood Village
Employees: 160
Locations: 3
Facts: Madison & Co. focuses on providing broker support, a collaborative team environment, and an extensive mentoring program.
No. 2
West + Main Homes
Years ranked: 7
Founded: 2017
Headquarters: Lakewood
Employees: 380
Facts: West + Main is an independently owned and operated boutique real estate company specializing in residential properties along the Front Range and mountain communities.
No. 3
Bloom Healthcare
Years ranked: 6
Founded: 2002
Headquarters: Wheat Ridge
Employees: 390
Facts: Bloom Healthcare’s providers deliver coordinated, hands-on care in assisted living communities and private homes to help patients age in place. The company works to reduce seniors’ risk of needing emergency room or inpatient care.
No. 4
RE/MAX Professionals
Years ranked: 6, 4 consecutive
Founded: 1982
Headquarters: Lakewood
Employees: 575, with 490 in Colorado
Locations: 8
Facts: RE/MAX Professionals leads the real estate industry in sales, technology, and professionalism.
No. 5
Fairway Independent Mortgage Corp.
Years ranked: 4
Founded: 1996
Headquarters: Madison, Wis.
Employees: 4,500, with 193 in Colorado
Facts: Fairway Independent Mortgage Corporation, a mortgage lender, has over 500 branches.
No. 6
General Air Service & Supply
Years ranked: 6
Founded: 1969
Headquarters: Denver
Employees: 195
Locations: 9
Facts: General Air Service & Supply is a third-generation, family-owned business, and Colorado’s largest independent gas and welding supplier.
No. 7
Vivax Pros
Years named: 4
Founded: 2004
Headquarters: Denver
Employees: 180
Locations: 2
Facts: Vivax Pros protects and beautifies homes by offering exterior and interior painting, siding, and gutter installation. The company also plants a tree for every customer it serves.
No. 8
Visiting Angels of Denver
Years named: 13
Founded: 2008
Headquarters: Wheat Ridge
Employees: 191
Locations: 3
Facts: Visiting Angels of Denver offers supportive home care services for seniors and adults, enabling them to remain safely in their homes and providing peace of mind to their families.
No. 9
Mortenson
Years named: 10
Founded: 1954
Headquarters: Minneapolis, Minnesota
Employees: 152
Facts: 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. 10
IntraNerve Neuroscience
Years ranked: 1
Founded: 2006
Headquarters: Colorado Springs
Employees: 265
Facts: IntraNerve Neuroscience is a leading national provider of neurodiagnostic and telemedicine services. It offers comprehensive, 24/7 neuroscience and telehealth services nationwide.
No. 11
StoneAge, Inc.
Years ranked: 1
Founded: 1979
Headquarters: Durango
Employees: 166
Facts: StoneAge engineers and manufactures high-pressure waterblast tools and automated equipment for industrial cleaning.
No. 12
Colorado PERA
Years ranked: 4
Founded: 1931
Headquarters: Denver
Employees: 330
Facts: Colorado Public Employees’ Retirement Association (PERA) is the state’s largest public pension plan, providing retirement and other benefits to more than 630,000 current and former public employees.
No. 13
Turner Construction Co.
Years ranked: 8
Founded: 1902
Headquarters: New York
Employees: 11,482, with 212 in Colorado
Facts: Turner Construction Company completes $15 billion of construction on 1,500 projects annually.
No. 14
LONG Building Technologies
Years ranked: 11
Founded: 1965
Headquarters: Littleton
Employees: 516, with 320 in Colorado
Locations: 5
Facts: LONG Building utilizes building technology services to automate, enhance efficiency, make facilities greener, and ensure safety for commercial, institutional, and industrial facilities of all types and sizes.
No. 15
Nextworld
Years ranked: 4
Founded: 2016
Headquarters: Greenwood Village
Employees: 415, with 211 in Colorado
Facts: Nextworld is a cloud-based enterprise applications platform that helps businesses innovate. Its software offers analytics, reporting, security, process automation, testing, system administration and more.
No. 16
Haselden Construction
Years ranked: 10
Founded: 1973
Headquarters: Centennial
Employees: 415, with 322 in Colorado
Locations: 3
Facts: Haselden Construction is a top general contractor on the Front Range. It provides exceptional, client-centric construction services in Colorado, Wyoming, and the Western United States. The company offers a range of services, including general contracting, construction management, design-build, turnkey development, and preconstruction services.
No. 17
Home Care RN
Years ranked: 2
Founded: 2011
Headquarters: Denver
Employees: 326
Facts: Home Care RN provides patient-centered home health care by partnering with patients, their families, and their providers to serve patients while supporting staff professional and personal aspirations.
No. 18
Cornerstone Home Lending
Years ranked: 11, 4 consecutive
Founded: 1988
Headquarters: Houston, Texas
Employees: 1,231, with 212 in Colorado
Locations: 49 in Colorado
Facts: 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. 19
Donor Alliance Inc.
Years named: 12
Founded: 1985
Headquarters: Denver
Employees: 185
Locations: 2
Facts: Donor Alliance is the organ and tissue procurement agency for Colorado and most of Wyoming. The not-for-profit organization serves 6.3 million residents and more than 117 hospitals.
No. 20
Housecall Pro
Years ranked: 3
Founded: 2013
Headquarters: Denver
Employees: 986, with 152 in Colorado
Locations: 1
Facts: Housecall Pro is dedicated to supporting home service professionals and helping them succeed with comprehensive software for scheduling, dispatching, job management, and more. The company serves over 25,000 HVAC, plumbing, electrical, cleaning, and other field service businesses.
No. 21
AIR Communities
Years ranked: 12, 3 consecutive
Founded: 2020
Headquarters: Denver
Employees: 804, with 245 in Colorado
Locations: 10
Facts: AIR Communities is a leader in Real Estate Investment Trusts, providing quality apartment homes in 15 states and the District of Columbia.
No. 22
G.H. Phipps Construction Companies
Years ranked: 1
Founded: 1952
Headquarters: Greenwood Village
Employees: 209
Facts: G.H. Phipps is a full-service general contracting company headquartered in Greenwood Village with branch offices in Colorado Springs, Fort Collins, Cheyenne and Laramie.
No. 23
BC Services
Years ranked: 1
Founded: 1925
Headquarters: Longmont
Employees: 230
Facts: BC Services offers payment resolution and collection services to utility companies, financial service providers, government agencies, commercial entities, and healthcare organizations.
No. 24
Applewood Plumbing Heating & Electric
Years named: 13
Founded: 1973
Headquarters: Denver
Employees: 183
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. 25
NEI Electric Power Engineering Inc.
Years ranked: 6
Founded: 1982
Headquarters: Lakewood
Employees: 318, with 168 in Colorado
Facts: NEI Electric Power Engineering is a privately held engineering firm specializing in sustainable and reliable power systems. It offers services throughout the project lifecycle, from conceptualization to construction, and includes photovoltaic design, battery energy storage systems, wind collection, substation design, and other related services.
No. 26
Galloway & Company Inc.
Years ranked: 8
Founded: 1982
Headquarters: Greenwood Village
Employees: 235
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. 27
Ulteig Engineers Inc.
Years ranked: 7
Founded: 1944
Headquarters: Fargo, North Dakota
Employees: 1,300, with 250 in Colorado
Locations: 1
Facts: Ulteig specializes in infrastructure engineering, technical services, and consulting. Its clients include global energy producers, private developers, government agencies, and locally funded cities.
No. 28
Alchemer
Years ranked: 3
Founded: 2006
Headquarters: Louisville
Employees: 170
Facts: Alchemer, formerly SurveyGizmo, offers survey software to help gather customer feedback and conduct market research for over 13,000 customers.
No. 29
PorchLight Real Estate Group
Years ranked: 12
Founded: 2005
Headquarters: Broomfield
Employees: 232
Locations: 6
Facts: PorchLight Real Estate Group is a 100% women-owned business that offers concierge-style real estate services in the greater Denver metro area and Boulder.
No. 30
Burns & McDonnell
Years ranked: 14
Founded: 1898
Headquarters: Kansas City, Missouri
Employees: 13,500, with 454 in Colorado
Facts: Burns & McDonnell is one of the largest engineering and architecture companies in the United States, with over 13,500 employees in 60 offices worldwide.
No. 31
Esler Companies
Years ranked: 11
Founded: 2011
Headquarters: Smithfield, Rhode Island
Employees: 2,198, 313 in Colorado
Facts: Esler Companies is the largest affiliate of Renewal by Anderson, a manufacturer of replacement windows and doors. The company offers services such as design consultation, window coverings, patio doors, and entry doors.
No. 32
Colorado Access
Years ranked: 4
Founded: 1995
Headquarters: Aurora
Employees: 433
Facts: Colorado Access is a nonprofit health plan offering members personalized care and services.
No. 33
Griffis Residential
Years named: 9
Founded: 1985
Headquarters: Greenwood Village
Employees: 290, with 160 in Colorado
Locations: 12
Facts: Griffis Residential owns and manages high-quality apartment communities in premier locations, including Denver, Seattle, San Diego, Portland, Ore., and Austin, Texas.
No. 34
EOG Resources
Years named: 6, 3 consecutive
Founded: 1985
Headquarters: Houston
Employees: 3,096, with 168 in Colorado
Facts: EOG Resources explores, develops, produces, and markets crude oil, natural gas, and natural gas liquids.
No. 35
Biodesix
Years named: 1
Founded: 2009
Headquarters: Louisville
Employees: 269
Facts: Biodesix specializes in data-driven diagnostic solutions for lung diseases, developing tests that utilize artificial intelligence and advanced technologies.
No. 36
Delta Dental
Years ranked: 5
Founded: 1958
Headquarters: Centennial
Employees: 228
Facts: Delta Dental of Colorado provides dental benefits to 1.5 million members, making dental care more accessible and affordable through easy-to-use and managed plans.
No. 37
CableLabs
Years ranked: 3
Founded: 1988
Headquarters: Louisville
Employees: 200
Facts: CableLabs is the global broadband industry’s leading R&D lab for next-generation technology.
No. 38
Sonsio Vehicle Protection
Years ranked: 1
Founded: 1984
Headquarters: Arvada
Employees: 183
Facts: Sonsio offers affordable vehicle protection plans to help keep vehicles safe on the road and maintain their like-new appearance.
No. 39
CGI
Years ranked: 2
Founded: 1976
Headquarters: Fairfax, Virginia
Employees: 91,000, with 271 in Colorado
Facts: CGI is one of the world’s largest independent IT and business consulting services firms. The company delivers an end-to-end portfolio of capabilities, including strategic IT and business consulting, systems integration, managed IT and business process services, and intellectual property solutions.
No. 40
Total Quality Logistics TQL
Years ranked: 6
Founded: 1997
Headquarters: Cincinnati, Ohio
Employees: 9,603, with 152 in Colorado
Facts: TQL collaborates with a network of over 160,000 carriers to connect customers with shipping needs to carriers with available capacity and service offerings. The company moves 3 million loads of freight annually.
No. 41
Crusoe Energy Systems
Years ranked: 2
Founded: 2018
Headquarters: Denver
Employees: 552, with 196 in Colorado
Facts: Crusoe Energy provides climate-aligned digital infrastructure by converting excess natural gas, often flared in oil fields, into electricity for data centers. This reduces greenhouse gas emissions and offers a cost-effective alternative to traditional energy sources.
No. 42
CBIZ
Years ranked: 5
Founded: 1996
Headquarters: Cleveland, Ohio
Employees: 6,800, with 162 in Colorado
Facts: CBIZ is one of the nation’s top accounting, tax, and advisory services providers.
No. 43
SEMA Construction Inc.
Years named: 4
Founded: 1991
Headquarters: Centennial
Employees: 860, with 250 in Colorado
Facts: SEMA Construction is a full-service contractor that provides civil and industrial construction services. Approximately 80% of its business comes from government contracts awarded through a competitive bidding process.
No. 44
Adolfson & Peterson Construction
Years ranked: 9, 8 consecutive
Founded: 1946
Headquarters: Aurora
Employees: 640, with 321 in Colorado
Locations: 2
Facts: Adolfson & Peterson Construction is a family-owned company consistently ranked among the nation’s top construction managers and general contractors.
No. 45
HCA Healthcare Continental Division/HealthONE
Years ranked: 4
Founded: 1991
Headquarters: Denver
Employees: 209
Facts: The HCA Healthcare Continental Division/HealthONE is among the largest healthcare systems in the metro Denver area. It has seven acute care hospitals, a pediatric hospital, a rehabilitation hospital, several free-standing emergency departments, numerous ambulatory surgery centers, CareNow urgent care and occupational medicine clinics, physician practices, and imaging centers.
No. 46
UDR, Inc.
Years ranked: 1
Founded: 1972
Headquarters: Highlands Ranch
Employees: 323
Facts: UDR is a real estate investment trust focusing on multifamily apartment communities, owning and managing properties across various U.S. markets.
No. 47
The Gallegos Corporation
Years ranked: 1
Founded: 1970
Headquarters: Wolcott
Employees: 179
Locations: 5
Facts: The Gallegos Corporation is based in the Vail Valley and has offices in Aspen, Denver, and Big Sky, Montana. It specializes in residential and commercial construction.
No. 48
Wiland Inc.
Years ranked: 7, 5 consecutive
Founded: 2005
Headquarters: Niwot
Employees: 267, with 179 in Colorado
Facts: Wiland is a leading marketing intelligence agency that provides data-driven marketing solutions to thousands of clients across the United States.
No. 49
Vantage Data Centers
Years ranked: 1
Founded: 2012
Headquarters: Denver
Employees: 1,016, with 250 in Colorado
Facts: Vantage Data Centers, which operates on five continents, enhances reliability, efficiency, and sustainability, enabling rapid scalability to meet market needs.
No. 50
Westwood Professional Services
Years ranked: 1
Founded: 1972
Headquarters: Minnetonka, Minnesota
Employees: 1,712, with 159 in Colorado
Facts: Westwood is an award-winning surveying and engineering services provider, specializing in commercial, public infrastructure, residential development, and renewable energy projects.
No. 51
Globus
Years ranked: 1
Founded: 1972
Headquarters: Denver
Employees: 800, with 492 in Colorado
Facts: Globus is a collection of travel companies that offer a variety of escorted tours, river cruises, and independent travel packages.
No. 52
Stewart Title
Years ranked: 3, 1
Founded: 1893
Headquarters: Houston, Texas
Employees: 7,000, with 175 in Colorado
Facts: Stewart Title is a customer-focused, global title insurance and real estate services company.
No. 53
Lohmiller and Company
Years named: 10, 3 consecutive
Founded: 1990
Headquarters: Denver
Employees: 216
Locations: 5
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.
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