Company lists · Data refreshed November 2026
All Tier 1 IT companies lists
Every Tier 1 IT companies list RevenueBase publishes, by country and city. 856 lists covering 275,276 companies, verified November 2026. Largest markets first.
Tier 1 IT companies by location
- Tier 1 IT companies based in Virginia Beach, United States42
- Tier 1 IT companies based in Aires, Argentina41
- Tier 1 IT companies based in Allen, United States41
- Tier 1 IT companies based in Baton Rouge, United States41
- Tier 1 IT companies based in Bern, Switzerland41
- Tier 1 IT companies based in Cuiaba, Brazil41
- Tier 1 IT companies based in Halifax, Canada41
- Tier 1 IT companies based in Kadikoy, Türkiye41
- Tier 1 IT companies based in The Woodlands, United States41
- Tier 1 IT companies based in Timisoara, Romania41
- Tier 1 IT companies based in Verona, Italy41
- Tier 1 IT companies based in Al Khobar, Saudi Arabia40
- Tier 1 IT companies based in Brno, Czechia40
- Tier 1 IT companies based in Folsom, United States40
- Tier 1 IT companies based in Kingston, Jamaica40
- Tier 1 IT companies based in Kitchener, Canada40
- Tier 1 IT companies based in Las Condes Santiago, Chile40
- Tier 1 IT companies based in Nicaragua40
- Tier 1 IT companies based in San Juan, Puerto Rico40
- Tier 1 IT companies based in South Plainfield, United States40
- Tier 1 IT companies based in Belem, Brazil39
- Tier 1 IT companies based in Braunschweig, Germany39
- Tier 1 IT companies based in Canton, United States39
- Tier 1 IT companies based in Doral, United States39
- Tier 1 IT companies based in Espoo, Finland39
- Tier 1 IT companies based in Iceland39
- Tier 1 IT companies based in Karlsruhe, Germany39
- Tier 1 IT companies based in Munster, Germany39
- Tier 1 IT companies based in North York, Canada39
- Tier 1 IT companies based in Puebla, Mexico39
- Tier 1 IT companies based in San Salvador, El Salvador39
- Tier 1 IT companies based in Thrissur, India39
- Tier 1 IT companies based in Wiesbaden, Germany39
- Tier 1 IT companies based in Windhoek, Namibia39
- Tier 1 IT companies based in Woodbridge, United States39
- Tier 1 IT companies based in Andheri East Mumbai, India38
- Tier 1 IT companies based in Bari, Italy38
- Tier 1 IT companies based in Bilbao, Spain38
- Tier 1 IT companies based in Charleston, United States38
- Tier 1 IT companies based in El Paso, United States38
- Tier 1 IT companies based in Erbil, Iraq38
- Tier 1 IT companies based in Glen Allen, United States38
- Tier 1 IT companies based in Lille, France38
- Tier 1 IT companies based in Newcastle Upon Tyne, United Kingdom38
- Tier 1 IT companies based in Northampton, United Kingdom38
- Tier 1 IT companies based in Papua New Guinea38
- Tier 1 IT companies based in Santos, Brazil38
- Tier 1 IT companies based in Tempe, United States38
- Tier 1 IT companies based in Valparaiso, Chile38
- Tier 1 IT companies based in Victoria, Canada38
- Tier 1 IT companies based in Bauru, Brazil37
- Tier 1 IT companies based in Benito Juarez, Mexico37
- Tier 1 IT companies based in Boulogne-Billancourt, France37
- Tier 1 IT companies based in Brighton, United Kingdom37
- Tier 1 IT companies based in Derby, United Kingdom37
- Tier 1 IT companies based in Dubai Uae, United Arab Emirates37
- Tier 1 IT companies based in Indaiatuba, Brazil37
- Tier 1 IT companies based in Joao Pessoa, Brazil37
- Tier 1 IT companies based in Montpellier, France37
- Tier 1 IT companies based in Ouagadougou, Burkina Faso37
- Tier 1 IT companies based in Spring, United States37
- Tier 1 IT companies based in Vaughan, Canada37
- Tier 1 IT companies based in Antananarivo, Madagascar36
- Tier 1 IT companies based in Coral Springs, United States36
- Tier 1 IT companies based in Dortmund, Germany36
- Tier 1 IT companies based in Falls Church, United States36
- Tier 1 IT companies based in Greensboro, United States36
- Tier 1 IT companies based in India, India36
- Tier 1 IT companies based in Johns Creek, United States36
- Tier 1 IT companies based in Jose, Costa Rica36
- Tier 1 IT companies based in Londrina, Brazil36
- Tier 1 IT companies based in Murcia, Spain36
- Tier 1 IT companies based in New Orleans, United States36
- Tier 1 IT companies based in Niteroi, Brazil36
- Tier 1 IT companies based in Parramatta, Australia36
- Tier 1 IT companies based in Phnom Penh, Cambodia36
- Tier 1 IT companies based in Torrance, United States36
- Tier 1 IT companies based in Aberdeen, United Kingdom35
- Tier 1 IT companies based in Bandung West Java, Indonesia35
- Tier 1 IT companies based in Basel, Switzerland35
- Tier 1 IT companies based in Brescia, Italy35
- Tier 1 IT companies based in Darmstadt, Germany35
- Tier 1 IT companies based in Hamilton, Canada35
- Tier 1 IT companies based in Kocaeli, Türkiye35
- Tier 1 IT companies based in Kuwait City, Kuwait35
- Tier 1 IT companies based in Stafford, United States35
- Tier 1 IT companies based in Augsburg, Germany34
- Tier 1 IT companies based in Belfast, United Kingdom34
- Tier 1 IT companies based in Boulder, United States34
- Tier 1 IT companies based in Carrollton, United States34
- Tier 1 IT companies based in Clearwater, United States34
- Tier 1 IT companies based in Courbevoie, France34
- Tier 1 IT companies based in Gainesville, United States34
- Tier 1 IT companies based in Hamilton, New Zealand34
- Tier 1 IT companies based in Harrow, United Kingdom34
- Tier 1 IT companies based in Lafayette, United States34
- Tier 1 IT companies based in Managua, Nicaragua34
- Tier 1 IT companies based in Pasadena, United States34
- Tier 1 IT companies based in Sarasota, United States34
- Tier 1 IT companies based in St. Paul, United States34
- Tier 1 IT companies based in Subang Jaya, Malaysia34
- Tier 1 IT companies based in Watford, United Kingdom34
- Tier 1 IT companies based in Zug, Switzerland34
- Tier 1 IT companies based in Aachen, Germany33
- Tier 1 IT companies based in Anaheim, United States33
- Tier 1 IT companies based in Buffalo, United States33
- Tier 1 IT companies based in Burlington, United States33
- Tier 1 IT companies based in Chattanooga, United States33
- Tier 1 IT companies based in Chesterfield, United States33
- Tier 1 IT companies based in Huntsville, United States33
- Tier 1 IT companies based in Kowloon, Hong Kong33
- Tier 1 IT companies based in Norwich, United Kingdom33
- Tier 1 IT companies based in Weston, United States33
- Tier 1 IT companies based in Honolulu, United States32
- Tier 1 IT companies based in Katowice, Poland32
- Tier 1 IT companies based in Kaunas, Lithuania32
- Tier 1 IT companies based in Lewisville, United States32
- Tier 1 IT companies based in Southfield, United States32
- Tier 1 IT companies based in Vila Velha, Brazil32
- Tier 1 IT companies based in Ann Arbor, United States31
- Tier 1 IT companies based in Carlsbad, United States31
- Tier 1 IT companies based in Cedar Park, United States31
- Tier 1 IT companies based in Fort Myers, United States31
- Tier 1 IT companies based in Germantown, United States31
- Tier 1 IT companies based in Laurel, United States31
- Tier 1 IT companies based in Lviv, Ukraine31
- Tier 1 IT companies based in Melbourne, United States31
- Tier 1 IT companies based in Reno, United States31
- Tier 1 IT companies based in South Jakarta, Indonesia31
- Tier 1 IT companies based in Southampton, United Kingdom31
- Tier 1 IT companies based in Swindon, United Kingdom31
- Tier 1 IT companies based in Umraniye, Türkiye31
- Tier 1 IT companies based in A Coruna, Spain30
- Tier 1 IT companies based in Almere, Netherlands30
- Tier 1 IT companies based in Bogota D.C, Colombia30
- Tier 1 IT companies based in Dhabi, United Arab Emirates30
- Tier 1 IT companies based in Frederick, United States30
- Tier 1 IT companies based in Lincoln, United States30
- Tier 1 IT companies based in Mainz, Germany30
- Tier 1 IT companies based in Milpitas, United States30
- Tier 1 IT companies based in Oxford, United Kingdom30
- Tier 1 IT companies based in Palma De Mallorca, Spain30
- Tier 1 IT companies based in Palo Alto, United States30
- Tier 1 IT companies based in Plymouth, United States30
- Tier 1 IT companies based in Sao Jose, Brazil30
- Tier 1 IT companies based in Scarborough, Canada30
- Tier 1 IT companies based in Wichita, United States30
- Tier 1 IT companies based in Addison, United States29
- Tier 1 IT companies based in Bryanston, South Africa29
- Tier 1 IT companies based in Cebu City, Philippines29
- Tier 1 IT companies based in Concord, United States29
- Tier 1 IT companies based in Cypress, United States29
- Tier 1 IT companies based in East Brunswick, United States29
- Tier 1 IT companies based in Essen, Germany29
- Tier 1 IT companies based in Farmers Branch, United States29
- Tier 1 IT companies based in Farmington, United States29
- Tier 1 IT companies based in Federal, Mexico29
- Tier 1 IT companies based in Jakarta Barat Dki Jakarta, Indonesia29
- Tier 1 IT companies based in Las Palmas De Gran Canaria, Spain29
- Tier 1 IT companies based in Miguel Hidalgo, Mexico29
- Tier 1 IT companies based in Modena, Italy29
- Tier 1 IT companies based in Nanterre, France29
- Tier 1 IT companies based in Newport Beach, United States29
- Tier 1 IT companies based in Oakland, United States29
- Tier 1 IT companies based in Peterborough, United Kingdom29
- Tier 1 IT companies based in Regina, Canada29
- Tier 1 IT companies based in Réunion29
- Tier 1 IT companies based in San Mateo, United States29
- Tier 1 IT companies based in Stamford, United States29
- Tier 1 IT companies based in Wolverhampton, United Kingdom29
- Tier 1 IT companies based in Woodstock, United States29
- Tier 1 IT companies based in York, United States29
- Tier 1 IT companies based in Aracaju, Brazil28
- Tier 1 IT companies based in Beaverton, United States28
- Tier 1 IT companies based in Brentwood, United States28
- Tier 1 IT companies based in Brisbane City, Australia28
- Tier 1 IT companies based in Itajai, Brazil28
- Tier 1 IT companies based in Kyiv Kyiv, Ukraine28
- Tier 1 IT companies based in Milton, Canada28
- Tier 1 IT companies based in Mountain View, United States28
- Tier 1 IT companies based in Neuilly-Sur-Seine, France28
- Tier 1 IT companies based in North Brunswick, United States28
- Tier 1 IT companies based in Piracicaba, Brazil28
- Tier 1 IT companies based in Plainsboro, United States28
- Tier 1 IT companies based in Roseville, United States28
- Tier 1 IT companies based in Tegucigalpa, Honduras28
- Tier 1 IT companies based in Warrington, United Kingdom28
- Tier 1 IT companies based in Bielefeld, Germany27
- Tier 1 IT companies based in Boise, United States27
- Tier 1 IT companies based in Bradford, United Kingdom27
- Tier 1 IT companies based in Burlington, Canada27
- Tier 1 IT companies based in Cupertino, United States27
- Tier 1 IT companies based in Englewood, United States27
- Tier 1 IT companies based in Graz, Austria27
- Tier 1 IT companies based in Jackson, United States27
- Tier 1 IT companies based in Lake Forest, United States27
- Tier 1 IT companies based in Lawrenceville, United States27
- Tier 1 IT companies based in Little Rock, United States27
- Tier 1 IT companies based in Long Beach, United States27
- Tier 1 IT companies based in Makati Manila, Philippines27
Counts are matching companies in the RevenueBase company graph as of each list's last refresh date.