Top 100 Application Modernization Companies in California
The Best of August 2026Looking for a top legacy modernization service in California?
Application modernization companies can help create new business value from existing applications. Finding the right company to partner with, however, can be an overwhelming process.
To assist you in your search for a partner, we’ve compiled this list of the top application modernization services in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
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List of the Best California Enterprise Application Modernization Services
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91Undisclosed2 - 9 employeesSan Francisco, CAFounded in 2026, Exovara Labs LLC is a small San Francisco, California-based website development company. Their team specializes in Web Development and Custom Software Development.Read More
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92$25,000+50 - 249 employeesSan Francisco, CAInnovify is an artificial intelligence development company. Founded in 2011, the midsize agency is located in London, England; San Francisco, California; Austin, California and New York, New York. Their services include Artificial Intelligence, AI Consulting, Custom Software Development, IT strategy consulting, and more.Read More
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ARM INCIndustries
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93Undisclosed10,000+ employeesSan Francisco, CAFounded in 1993, Thoughtworks Software Technologies Ltd is a large Chicago, Illinois-based AI company. Their team offers Artificial Intelligence and IT managed services.Read More
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94$1,000+Freelancer employeesSan Mateo, CARead More
GCX Solutions is a product development firm headquartered in San Mateo, CA. Founded, in 2018, their team of approximately 1–2 employees mostly serves small clients and some mid-sized businesses. Within the scope of product development, their specialties include custom software and UX/UI design.
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Momentum Design LabIndustries
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95$1,000+50 - 249 employeesOjai, CABased in Ahmedabad, India and Ojai, California, MagnusMinds IT Solution LLP is a big data company. The midsize agency was founded in 2009. Their services include BI & big data consulting & SI, Web Development, Enterprise App Modernization, API Development, and more.Read More
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96$10,000+10 - 49 employeesDublin, CAArtificial intelligence firm Bayshore Intelligence Solutions was established in 2019. The small team focuses on Artificial Intelligence, Custom Software Development, Enterprise App Modernization, Mobile App Development, and more. The agency is based in Dublin, California and Kolkata, India.Read More
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97$5,000+10 - 49 employeesSan Pablo, CALaunched in 2017, eSquall LLC is an Enterprise App Modernization company. The agency offers Enterprise App Modernization and Artificial Intelligence, and is small.Read More
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Songoven MyEstateShield Insightaga Caddie AIIndustries
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98Undisclosed2 - 9 employeesSanta Ana, CALaunched in 2007, AES Global, Inc. Is a small Santa Ana, California-based Enterprise App Modernization company. Their team focuses on Enterprise App Modernization and IT managed services.Read More
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99$25,000+250 - 999 employeesSan Francisco, CAHelpware Tech is a midsize San Francisco, California-based IT strategy consulting company. They provide IT strategy consulting, IT staff augmentation, Custom Software Development, Web Development, and more and were founded in 2015.Read More
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Google Microsoft PWC CompIQIndustries
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100$10,000+50 - 249 employeesIrvine, CACodup is a custom software development company. The midsize team is located in Houston, Texas; Dubai, United Arab Emirates and Irvine, California. Their services include Custom Software Development, E-Commerce Development, Enterprise App Modernization, Mobile App Development, and more.Read More
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UnileverIndustries
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101Undisclosed10 - 49 employeesOrange, CABased in Orange, California, Omni Integration is an IT managed services company. The team offers IT managed services and Enterprise App Modernization.Read More
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102$50,000+1,000 - 9,999 employeesRoseville, CALocated in Costa Mesa, California; Roseville, California; Boise, Idaho and Denver, Colorado, Synoptek is an IT managed services company. The company offers IT managed services, Enterprise App Modernization, cloud consulting & SI, and IT strategy consulting and is large.The company was launched in 2001.Read More
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Champion Home ExteriorsIndustries
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103$10,000+50 - 249 employeesDublin, CABigOhTech is a Noida, India-based AI Agents company. They specialize in AI Agents, Artificial Intelligence, AI Consulting, IT staff augmentation, and more and were launched in 2021.Read More
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104Undisclosed50 - 249 employeesSan Francisco, CASiliconMint is a San Francisco, California-based software development firm. Launched in 2012, the team focuses on Custom Software Development and Web Development.Read More
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105$10,000+2 - 9 employeesLong Beach, CACoremaitri Software, a small software development firm, is located in Long Beach, California and New Delhi, India. Their services include Custom Software Development and ERP consulting and SI.Read More
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106$5,000+Freelancer employeesSan Francisco, CASiteAppy LLC is an Enterprise App Modernization company. The team focuses on Enterprise App Modernization and Custom Software Development and is in San Francisco, California.Read More
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107$25,000+250 - 999 employeesMilpitas, CAEstuate is a software development firm. They were established in 2005 and offer Custom Software Development and Enterprise App Modernization.Read More
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108Undisclosed250 - 999 employeesMenlo Park, CAKumaran Systems is a Menlo Park, California-based Enterprise App Modernization company. Founded in 1991, the team focuses on Enterprise App Modernization and BI & big data consulting & SI.Read More
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109$10,000+10 - 49 employeesWestminster, CASoftware development firm MLTech Soft was launched in 2020. Their small team is located in Ho Chi Minh City, Vietnam; Singapore, Singapore and Westminster, California and focuses on Custom Software Development, IT managed services, Artificial Intelligence, Enterprise App Modernization, and more.Read More
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PSA Marine Private Limited Unilever Vietnam International Company Limited Lof International Dairy Products Joint Stock Company Yen Viet Joint Stock CompanyIndustries
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110Undisclosed10 - 49 employeesLake Forest, CAEnterprise App Modernization company Asparian was established in 2004. The firm provides Enterprise App Modernization and cloud consulting & SI.Read More
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111Undisclosed10 - 49 employeesSan Diego, CATitanium Cobra Solutions is a Business Consulting company. The San Diego, California-based firm offers Business Consulting and Application Management & Support.Read More
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112$10,000+250 - 999 employeesSan Jose, CARead More
Trajectus, a web design agency, is based in Southfield, Michigan and San Jose, California. They provide web design, e-commerce development, enterprise app modernization, application management & support, and more and were founded in 2015.
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113Undisclosed50 - 249 employeesSan Francisco, CAAOE is an e-commerce development company launched in 1999. Their team offers E-Commerce Development and Web Design.Read More
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114$25,000+250 - 999 employeesSan Jose, CAScry AI, a midsize artificial intelligence firm, is headquartered in San Jose, California and Gurugram, India. Their services include Artificial Intelligence and BI & big data consulting & SI.Read More
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115$10,000+50 - 249 employeesSunnyvale, CAIT strategy consulting company TransformHub was established in 2019. The team specializes in IT strategy consulting and UX/UI Design and is based in Singapore, Singapore and Sunnyvale, California.Read More
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116Undisclosed2 - 9 employeesSacramento, CAEnterprise App Modernization company Lume Consulting Group is in Sacramento, California. Established in 2018, the team focuses on Enterprise App Modernization and BI & big data consulting & SI.Read More
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117Undisclosed50 - 249 employeesLake Forest, CASEO agency Jazel focuses on Search Engine Optimization and Web Design. They are located in Lake Forest, California.Read More
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118Undisclosed2 - 9 employeesBonsall, CAVNuIT LLC is a Business Consulting company. The small Bonsall, California-based team specializes in Business Consulting and Application Management & Support. The agency was established in 2012.Read More
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119$10,000+50 - 249 employeesSunnyvale, CARailsFactory is a midsize software development company. Founded in 2006, the team specializes in Custom Software Development and IT staff augmentation.Read More
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120$10,000+10 - 49 employeesSan Francisco, CATekxai is a custom software development firm founded in 2020. Located in San Francisco, California; Milton, Canada and Lahore, Pakistan, their small team offers Custom Software Development, Artificial Intelligence, IT strategy consulting, Enterprise App Modernization, and more.Read More
Industries
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