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Top 10 Custom
List of the Top 10 Custom Software Development Companies in California
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TechAhead Custom Software Development Company
TechAhead is a software development firm that has worked with a wide range of clients, including Fortune 500 businesses and startups. They were founded in 2009 and have over 200 workforce.They have a strong collaboration with Fortune 500 brands, and you can also hire developers from TechAhead for your next project.“The best app agency in the industry, hands down”Leslie Paz, Founder & CEO, The Utilize App, Boca Raton, Florida
$25-49/hr
100 - 249
2009
Los Angeles, USA
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Diffco Custom Software Development Company
4.7
20 reviews 
Diffco is a Silicon Valley-based company specializing in software development and team augmentation. With over 16 years of experience, they provide businesses with reliable solutions for mobile, web, and AI projects. Their services focus on helping companies grow by offering tailored software development, from initial ideas to full implementation and ongoing support. Diffco emphasizes clear communication, transparency in processes, and building long-term client relationships. They also offer dedicated project teams without cross-project sharing and detailed reporting to ensure quality outcomes.
- $50- 70/hr
- 50-99
- 2008
- San Jose, California
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Goji Labs Custom Software Development Agency
4.6
25 reviews
Goji Labs is a custom software development firm with 10+ years of experience delivering product solutions for startups, corporations, and organizations. Their comprehensive services include product strategy, UX research, UX/UI design, web and mobile app development, and IoT solutions. Goji Labs specializes in risk mitigation for partners launching new software ventures.
- $149/hr
- Under 49
- 2014
- Los Angeles, California
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A3Logics Custom Software Development Company
4.5
32 reviews
A3Logics is a well-established software development company with over 20 years of experience. It specializes in advanced technologies like Artificial Intelligence (AI), Blockchain, and the Internet of Things (IoT). With a team of more than 500 skilled professionals, the company delivers customized IT solutions to businesses globally. Their expertise spans various industries, including healthcare, education, logistics, and finance, offering services such as app development, software engineering, cloud integration, and more. A3Logics is committed to innovation, quality, and customer satisfaction, helping organizations enhance efficiency and achieve sustainable growth.
- $25-50/hr
- 500+
- 2003
- Santa Clara, California
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Talentica Software Custom Software Development Company
4.6
52 reviews
With a 400+ engineer workforce distributed across 9 Technology Excellence Groups (AI/ML, Blockchain, BigData, DevOps, UI/UX, Mobile, Wearables, and more), they deliver both experienced remote teams and comprehensive technical expertise while maintaining cost-effectiveness. Their specialized structure enables access to diverse technological capabilities through a single, efficient resource.
- $50-1000/hr
- 500-999
- 2011
- Pleasanton,California
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Evrone Custom Software Development Company
4.7
18 reviews
Evrone, with 15+ years and 200+ experts, delivers exceptional software. Completing 250+ projects for 100+ global clients, they've earned 150+ awards. Their culture prioritizes continuous learning, extending beyond Node.js. Evrone's developers innovate with new modules, integration, and custom solutions, ensuring reliable, cutting-edge services.
- $50-/hr
- 50-99
- 2008
- San Francisco,California
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Azumo Custom Software Development Company
4.5
31 reviews
For over eight years, Azumo has excelled in nearshore software development, providing organizations with high-quality solutions. Their strategic, efficient approach delivers skilled development teams, specializing in artificial intelligence, data engineering, and enterprise web and mobile applications. They have helped hundreds of organizations build strong software.
- $55-/hr
- 100-249
- 2016
- San Francisco,California
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Cheesecake Labs Custom Software Development Company
4.8
27 reviews
Cheesecake Labs delivers specialized design and engineering services through expert software development and staffing solutions. With a decade of experience and 300+ apps created, they serve clients ranging from US startups to Fortune 500 companies. Their impressive portfolio includes collaborations with Moneygram International, Mutual of Omaha, Stellar Development Foundation, Bemis, and Tapcart.
- $50 - $99/hr
- 50-99
- 2013
- San Francisco,California
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Baunfire Custom Software development Company
4.7
28 reviews
Baunfire, based in San Jose, is a Silicon Valley digital agency specializing in designing and developing corporate websites. Founded in 2001, their team of designers, developers, strategists, and producers collaborates with leading technology brands, B2B companies, and startups. Known for high-quality work and strong client testimonials, Baunfire delivers impactful web experiences for businesses like Google, Nike, and Sapphire Ventures, combining creativity with technical expertise to meet diverse digital needs.
- $150 to $199
- 50-99
- 2001
- San Jose,California
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Koderspedia Custom Software Development Company
4.6
18 reviews
Koderspedia is a U.S.-based software development company specializing in custom mobile app solutions. They transform ideas into high-quality digital products, offering tailored services for iOS and Android platforms. Known for their collaborative approach, they ensure seamless integration and successful delivery of projects. With expertise in mobile design, web development, and advanced technologies like AI, Koderspedia helps businesses achieve scalable and secure solutions that meet their unique needs.
- $25 - $49 /hrr
- Under 49
- 2020
- Palo Alto,California
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Frequently asked questions
- General
General
How much does custom software development cost?
How to choose a custom software development company for a project?
When selecting a custom software company, think about their experience in your industry and the quality of their previous projects. Evaluate their technical knowledge, communication skills, and ability to meet deadlines. It’s also crucial to review client testimonials and case studies to ensure they deliver reliable and effective solutions.
Can you integrate third-party services and APIs into the software?
We seamlessly connect your software with essential tools like payment systems, CRMs, and AI. This integration expands your app's capabilities, adding features like cloud storage and advanced data analysis.
What questions should I ask about the company's approach to security and data privacy?
Enquire about the company's approach to data encryption, secure coding procedures, and compliance with industry standards such as GDPR or HIPAA. Enquire about their strategies for protecting sensitive data throughout development and after launch. It's also critical to understand their data breach management procedures and how they handle third-party integrations securely.
How can I determine if the company has experience in my industry or with similar projects?
Examine the company's portfolio and case studies to determine if they've worked on similar projects in your industry. Request specific samples of previous work that are relevant to your project's scope and objectives. You can also request client testimonials or references to confirm their knowledge and success in your field.
How do I know if the company provides good post-launch support and maintenance services?
Ask the company about their post-launch support practices, such as response times, issue resolution procedures, and maintenance plans. Request information on service level agreements (SLAs) for ongoing assistance. Determine whether they provide regular updates, bug fixes, and improvements once the software is released. Additionally, request client references to confirm the quality of their post-launch services.
