Top 100 Java Development Companies in California

Midsize custom software development firm CGVAK Software & Exports Ltd, is headquartered in Coimbatore, India and Walnut Creek, California. They focus on custom software development, mobile app development, application management & support, e-commerce development, and more and were founded in 1996.

Mobile application development company Hastree Technologies Pvt Ltd is headquartered in Noida, India and Burbank, California. The small team provides mobile app development, web development, wearable app development, IoT development, and more and was founded in 2019.

Founded in 2014, LITSLINK is a development company based in Kyiv, Ukraine with a satellite office in Kharkiv, Ukraine. With over 80 employees, LITSLINK provides web development, mobile app development and custom software development services. LITSLINK provides services to companies in the information technology, financial services and business services fields. 

360 IT Professionals is a midsize CRM consulting and SI company established in 2013. Their team focuses on CRM consulting and SI, mobile app development, IT staff augmentation, and web development. The agency is in San Jose, California.

Sister Agency is a small advertising company in Tampa, Florida. Their services include advertising, branding, digital strategy, search engine optimization, and more.

Critical Mass is a web design agency. Their midsize team is located in Calgary, Canada; London, United Kingdom; New York, New York and Chicago, Illinois. The firm focuses on web design, ux/ui design, digital strategy, e-commerce development, and more. The firm was established in 1996.

Digicorns Technologies, a UX agency, is based in San Mateo, California and Noida, India. The firm offers ux/ui design, social media marketing, search engine optimization, pay per click, and more and has a small team.The firm was established in 2019.

Insight Global, a HR agency, was established in 2001. Headquartered in Atlanta, Georgia; Birmingham, Alabama; Huntsville, Alabama and Phoenix, Arizona, their large team provides HR services.

Zone24x7 Inc. is a software and tech company based in San Jose, Calif. Founded in 2003, their team of over 50 experts provides IoT development, custom software development, and cloud consulting services for clients ranging from small startups to large corporations.

TrooMobile, a small application development firm, is based in Costa Mesa, California. They offer mobile app development, ux/ui design, and web development and were launched in 2010.

New York-based mobile app and web development company Utility was founded in 2013. The team of about 40 engineers, digital strategists, and creative designers serves small, mid-market, and enterprise clients across all industries. They complement their development expertise with UX/UI design.

Fission Labs is a custom software development company. Established in 2008, the midsize company is in Sunnyvale, India and Hyderabad, India. Their services include custom software development, mobile app development, application testing, and web development.

A-CX, a small software development company, is in San Jose, California; Vancouver, Canada; Frisco, Texas and Oulu, Finland. They specialize in custom software development, mobile app development, cybersecurity, web development, and more and were founded in 2020.

App development firm PSD Markup is based in Fresno, California. The small team provides mobile app development, web development, web design, and e-commerce development and was established in 2010.

Universal Informatics LLC, a web development company, was founded in 2024. They are based in La Habra, California and have a small team. Their services include web development, mobile app development, api development, microservices architecture services, and more.

Datamart is a software development company launched in 2011. Their midsize team is in Palo Alto, California; Stockholm, Sweden; L'viv, Ukraine and Viernheim, Germany. The company provides custom software development, web development, ux/ui design, mobile app development, and more.

Custom software development firm Riverstone Infotech was launched in 2001. Based in Chennai, India and Pleasanton, California, their midsize team specializes in custom software development, web design, other application development, web development, and more.

Differenz System is a development company founded in 2013 and located in Irvine, Calif. They have a team of about 115 individuals who offer mobile app and web development services. Their client base comprises small businesses in the business services, arts, entertainment, and music, health care and medical, and hospitality and leisure industries.

Established in 2014, XTENDLY is a web development firm. In Pleasanton, California, their small team specializes in web development, mobile app development, branding, search engine optimization, and more.

Squash Apps is a software development company founded in 2015 and headquartered in Coimbatore, India. It has a team of about 20. Squash Apps works on mobile app development, custom software development, web development, and more for small businesses.

RockonIT is a digital services provider based in Rancho Cucamonga, Calif. Founded in 2010, the team of fewer than 10 employees offer web development, mobile app development, and graphic design services for a variety of industries.

TS Incorporated Digital Marketing is a web design company headquartered in Redondo Beach, California. The agency focuses on web design, web development, direct marketing, advertising, and more and has a small team.The agency was established in 2007.

Launched in 2001, Inverted Software is a custom software development firm. Their midsize team is located in Chatsworth, California. Their team provides custom software development, ux/ui design, cybersecurity, mobile app development, and more.

GeneXus Consulting is corporate software development company based in Montevideo, Uruguay, with an additional location in Santa Rosa, Calif. Founded in 1988, the team of nearly 110 provides web, mobile app, and custom software development, enterprise app modernization, and application testing services.

Wolfe Interactive, Inc. Is a web design agency based in Temecula, California. They provide web design, custom software development, search engine optimization, social media marketing, and more and were established in 1996.

Located in Pasadena, California, Bits on Disk is a custom software development company. The small firm was launched in 2018. Their team focuses on custom software development, BI & big data consulting & SI, and cloud consulting & SI.

Talentica Software is an innovative product development company for high-growth companies. With 18 years of experience across various domains of 170 customers, the company has developed deep expertise in AI & Machine Learning, and Blockchain. Expertise in these emerging technologies and understanding the business context help bring product features to life. They have a team of 500+ experienced & handpicked tech experts hailing from the premier engineering schools of India like IITs, NITs & BITs.

Hikesiya USA Inc., a software development firm, was established in 2001. They are located in Cupertino, California and Yokohama, Japan and have a midsize team. Their services include custom software development, IT strategy consulting, ERP consulting and SI, web design, and more.

Predikly LLC is a midsize artificial intelligence company. The , -based agency was founded in 2017. Their services include Artificial Intelligence, other IT consulting and SI, custom software development, BI & big data consulting & SI, and more.

Ojas is an IT services company based in Hyderabad, India, with an office in Valencia, Calif. The company, founded in 2011, has more than 500 employees and provides web development, mobile app development, UX/UI design, IT staff augmentation, and application testing services. Ojas serves small and midmarket companies in various industries that include financial services, IT, and health care & medical.