Top 100 IT Services Companies in San Diego
The Best of December 2025Looking for a top IT services company in San Diego?
Businesses today need technology, including small businesses. This means they also need professional IT support. It is an essential role in any organization, big or small. This list of the leading IT companies in San Diego will make you rethink not having an IT support team. You can browse these companies' portfolio items, client feedback, and company descriptions. You can tell us more about your project so that we can recommend the right company for you.
List of the Best San Diego IT Companies
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$5,000+50 - 249 employeesGaithersburg, MDRead More
DesignDATA is an IT managed services company. Established in 1979, the midsize agency is headquartered in Gaithersburg, Maryland and Washington, District of Columbia. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.
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$1,000+50 - 249 employeesNaperville, ILBetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.Read More
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31Undisclosed10 - 49 employeesSan Diego, CAStratus10 is a cloud consulting & SI company. The San Diego, California-based team specializes in cloud consulting & SI.Read More
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32$5,000+10 - 49 employeesSan Diego, CACreative Resources Technology Group, an IT managed services company, offers IT managed services and Cybersecurity. The agency is based in Austin, Texas and San Diego, California.Read More
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33$1,000+10 - 49 employeesSan Diego, CASkyriver IT is an IT managed services company. Founded in 2010, their team provides IT managed services and Cybersecurity.Read More
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34$5,000+10 - 49 employeesSan Diego, CARead More
Nisman Solutions is a software and product development company founded in 2007 and located in San Diego, Calif. With a team of about 25 employees, they serve small and midmarket businesses in the business services, health care and medical, IT, telecommunications, and e-commerce industries. Their services include software development, mobile app development, and IT strategy consulting.
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Phone2Industries
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35$5,000+10 - 49 employeesSan Diego, CARead More
IDerive, a media planning & buying agency, was launched in 2022. Headquartered in San Diego, California, their small team specializes in media planning & buying, digital strategy, content marketing, and BI & big data consulting & SI.
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36$1,000+10 - 49 employeesSan Diego, CANetwork Titan is an IT managed services company. The team is based in San Diego, California, and their services include IT managed services and cloud consulting & SI.Read More
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37$10,000+10 - 49 employeesSan Diego, CARead More
Wired Avenue is a digital agency in San Diego. Founded in 2002, they have fewer than 5 employees that serve clients in a wide variety of industries. Services include web development, mobile app development, and custom software development.
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38$5,000+10 - 49 employeesSan Diego, CAApphienz, a small CRM consulting and SI company, is based in San Diego, California and Mumbai, India. Their services include CRM consulting and SI and Custom Software Development.Read More
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39$10,000+250 - 999 employeesSan Diego, CAVerimatrix is a Cybersecurity company. Located in San Diego, California and Meyreuil, France, the agency focuses on Cybersecurity.Read More
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40Undisclosed250 - 999 employeesSan Diego, CAESET is a Cybersecurity company. Headquartered in San Diego, California, their midsize team focuses on Cybersecurity. The agency was established in 1992.Read More
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41$25,000+1,000 - 9,999 employeesSan Diego, CASimform is a cloud consulting & SI company. They are headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and have a large team that specializes in cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more. The agency was established in 2010.Read More
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RedbullIndustries
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42$5,000+10 - 49 employeesSan Diego, CAAgile IT, a cloud consulting & SI company, was established in 2006. The team offers cloud consulting & SI and IT managed services.Read More
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43Undisclosed2 - 9 employeesLa Mesa, CATechiT Services is an IT managed services company. The team offers IT managed services and IT staff augmentation, and the agency is based in La Mesa, California.Read More
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44$5,000+250 - 999 employeesSan Diego, CAIT managed services company SHE Group is headquartered in Ludwigshafen am Rhein, Germany and Cluj-Napoca, Romania. Launched in 1987, the team provides IT managed services and IT strategy consulting.Read More
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BASFIndustries
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45$1,000+10 - 49 employeesSan Diego, CAInfoTechSVP is an IT managed services company. The company is headquartered in San Diego, California. Their team offers IT managed services and IT staff augmentation.Read More
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46Undisclosed50 - 249 employeesSan Diego, CALaunched in 1984, Office1 is an IT managed services company. Their team provides IT managed services and IT strategy consulting.Read More
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47$1,000+2 - 9 employeesSan Diego, CASecure Networks ITC is an IT managed services company. They are in San Diego, California and Los Angeles, California. Their team offers IT managed services.Read More
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48Undisclosed10 - 49 employeesSan Diego, CAFIT Solutions, LLC is an IT managed services company. Their team is headquartered in San Diego, California. The company provides IT managed services and IT strategy consulting.Read More
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49$1,000+10 - 49 employeesSan Diego, CANatural Networks is an IT strategy consulting company. The firm is headquartered in San Diego, California. Their team specializes in IT strategy consulting and cloud consulting & SI.Read More
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50Undisclosed10 - 49 employeesSan Diego, CASmall IT managed services company SpotLink, is in San Diego, California and San Marcos, California. Their services include IT managed services and IT strategy consulting.Read More
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51Undisclosed10 - 49 employeesSan Diego, CAFusion Factor Corporation is a Cybersecurity company. Their small team is based in San Diego, California and Carlsbad, California. Their team offers Cybersecurity and cloud consulting & SI.Read More
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52$1,000+10 - 49 employeesSan Diego, CAPros Global Inc is a Cybersecurity company. The San Diego, California-based agency focuses on Cybersecurity and IoT development.Read More
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53$1,000+10 - 49 employeesSan Diego, CAExcedeo IT Support San Diego, an IT managed services company, was founded in 2003. The small team offers IT managed services and cloud consulting & SI.Read More
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54$5,000+10 - 49 employeesSan Diego, CAKeyNode Solutions, a CRM consulting and SI company, was established in 2000. The company specializes in CRM consulting and SI, and is small.Read More
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55$1,000+2 - 9 employeesSan Diego, CAFounded in 2004, REMSIS - Managed IT Services is a small IT managed services company based in San Diego, California. Their team focuses on IT managed services and Cybersecurity.Read More
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56$1,000+10 - 49 employeesSan Diego, CALaunched in 2007, Windward Technology is a Cybersecurity company. The small team focuses on Cybersecurity and IT strategy consulting.Read More
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57Undisclosed10 - 49 employeesSan Diego, CASmall Cybersecurity company SOCBOX, is based in San Diego, California. The team focuses on Cybersecurity.Read More
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58Undisclosed2 - 9 employeesSan Diego, CACITS is a small IT managed services company located in San Diego, California. Their services include IT managed services and Cybersecurity.Read More
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59Undisclosed2 - 9 employeesSan Diego, CABased in San Diego, California, Regala Consulting is a small IT strategy consulting company. Their services include IT strategy consulting and other IT consulting and SI.Read More
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60Undisclosed2 - 9 employeesSan Diego, CAKingsGuard is a Cybersecurity company. They provide Cybersecurity and IT managed services and were founded in 2022.Read More
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