Top Software Developers in California
1,251 Companies
List of the Top California Custom Software Development Companies
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$25,000+< $25 / hr1,000 - 9,999Serves CaliforniaServices provided
50% Custom Software Development20% Web Development10% AI Development +2 services10% Cloud Consulting & SI10% Mobile App DevelopmentSee all 47 projectsTatvaSoft is a custom software development company that offers bespoke software creation, full-stack software development, and tailored solutions to meet diverse client needs. Across various reviews, they are praised for their project management, technical expertise, and ability to deliver high-quality, end-to-end software development services on time. Approximately 100% of clients express satisfaction with their professionalism, collaborative approach, and commitment to continuous improvement.
24 of 30 Custom Software Development reviews are 5 stars2 new reviews for Custom Software Development in past 6 months$50,000 – $199,999 avg. project costRead 30 ReviewsCustom Software Development PROJECT HIGHLIGHT
Design & Dev Services for Web Design Firm
5.0 — TatvaSoft provided responsive design, shop development, and plugin development. Read moreWas this helpful?
Industry Experience
TatvaSoft has garnered positive feedback across various industries including Automotive, Financial Services, Insurance, and Retail. Clients praised their expertise in automating workflows, developing custom software solutions, and enhancing user experience. The overall sentiment is highly favorable, highlighting strengths in project management, timely delivery, and a collaborative approach. Their capacity to adapt to specific industry needs makes them a viable partner for businesses seeking robust software development across these sectors.
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IT Services Retail Financial services Insurance Consulting Design Energy & natural resources Sports Information technology Other Industry Real estate Healthcare Business services Government Media Gambling Automotive SoftwareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently express satisfaction with TatvaSoft's pricing and value for money, highlighting their competitive rates and alignment with project budgets. One client appreciated the 'good value for cost,' while another noted that TatvaSoft's pricing fit their budget perfectly. Overall, feedback indicates a strong sentiment regarding the company's ability to deliver high-quality services efficiently, making them a recommended choice for cost-conscious clients seeking effective solutions.Was this helpful?
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$10,000+$50 - $99 / hr1,000 - 9,999Serves CaliforniaServices provided
10% Custom Software Development10% AI Development10% AR/VR Development +7 services10% Blockchain10% Cloud Consulting & SI10% E-Commerce Development10% IT Staff Augmentation10% Mobile App Development10% Robotics Process Automation10% Web DevelopmentSee all 72 projectsInnowise is a bespoke software development company excelling in end-to-end services across various sectors, including healthcare and finance. The firm boasts a 100% satisfaction rate from reviewers, with significant praise for their project management and tailored solutions. Clients consistently highlight Innowise's responsiveness and technical expertise, with 90% of reviews mentioning their ability to deliver on time and within budget.
Reviews mention Unique expertise
Client feedback consistently highlights Innowise's unique expertise across various projects. For instance, one CEO noted their 'solid understanding' and ability to deliver tailored solutions, while another praised their 'technical expertise' and seamless integration into teams. The results included reduced data processing times and a successful e-commerce launch, demonstrating their adeptness in complex scenarios. Overall, sentiment leans positively, with clients valuing their professionalism and specialized knowledge in technology development.-
Staff Aug, Blockchain & E-Commerce Dev for Software Company
5.0 Jul 25, 2024The company demonstrated expertise in the required domain which was a significant factor in our project. Their ability to deliver quality products on time was also notable. We found their enhanced development expertise and output quality to be impressive.
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UX/UI Design for Software Company
5.0 May 16, 2024The quality of developers at Innowise was remarkable. They demonstrated exceptional expertise and technical proficiency. Their ability to produce high-quality code that was clean, efficient, and well-documented was impressive.
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Web3 Interface & Solidity Contracts Dev for Blockchain Co
5.0 Jan 23, 2024Innowise showed a depth of capability and a strong ability to understand complex business cases. Their responsiveness was commendable, and they effectively used industry-standard project management methods.
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IT Staff Augmentation for IT Services Company
5.0 Sep 8, 2023Innowise Group assembled a custom team of 7 engineers who were experts in their scope of work. The pace they work at while providing high-quality services was impressive.
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Go Language Project for IT Consulting Firm
4.5 Feb 8, 2023The team from Innowise was praised for their expertise in the Go language. They delivered a solution that exceeded expectations, demonstrating their valuable contribution to the project.
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Industry Experience
Innowise Group has demonstrated extensive expertise across various industries, including healthcare, information technology, financial services, and advertising & marketing. Clients praised their technical proficiency, project management skills, and ability to deliver solutions that enhance operational efficiency. Feedback reveals a consistent sentiment of satisfaction, particularly in healthcare and IT services, with notable improvements in workflow and compliance. Businesses in need of software development, data management, or digital transformation in these sectors would benefit significantly from engaging Innowise.
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Design Information technology Advertising & marketing Arts, entertainment & music Software Financial services Energy & natural resources Healthcare Construction Gaming Business services IT Services Consulting Other Industry Consumer Products Telecommunications Human Resources Wellness & Fitness Manufacturing EducationWas this helpful?
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United States (15) Germany (10) Italy (6) England (4) Switzerland (4) Israel (3) Estonia (3) Luxembourg (2) France (2) Ireland (2) Lithuania (1) Qatar (1) Armenia (1) Finland (1) New Zealand (1) Norway (1) Poland (1) Georgia (1) South Africa (1) Sweden (1) Denmark (1) Thailand (1) Belarus (1) Bosnia and Herzegovina (1)Was this helpful?
See All Locations (11)Paris, France
104 Boulevard de Sébastopol
Paris, France 750036 - 9
+33749176901
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$25,000+$25 - $49 / hr1,000 - 9,999Serves CaliforniaServices provided
10% Custom Software Development10% AI Development10% CRM Consulting and SI +7 services10% Cloud Consulting & SI10% E-Commerce Development10% ECM Consulting and SI10% ERP Consulting and SI10% Enterprise App Modernization10% Mobile App Development10% Unified Communications Consulting & SISee all 82 projectsSimform is a custom software development company specializing in tailored software solutions across various industries, including SaaS, healthcare, and financial services. The company consistently receives positive feedback, with 88% of reviewers praising their technical expertise, project management, and alignment with client values. Simform stands out for its end-to-end software development capabilities and professional team, with only a small percentage highlighting areas for improvement.
Reviews mention Helpful
Clients consistently highlight Simform's responsiveness and helpfulness throughout their projects. One client praised their proactive communication and structured approach, which allowed for effective collaboration and timely problem resolution. Another noted the team's dedication to understanding the project deeply and providing valuable suggestions for improvement. Overall, the sentiment reflects a strong appreciation for Simform's customer-first attitude and commitment to delivering high-quality results, with clients expressing satisfaction regarding the team's collaborative nature and willingness to assist.-
Web & Mobile App Development for Nonprofit Organization
5.0 Jun 20, 2023Our project manager is US-based, but we also have an India-based project manager assigned to our team. They have always been very responsive and transparent, and have taken our feedback and needs seriously. We initially had an extremely short timeline for delivery, and development work often has delays, so we extended that timeline. Also, they've been responsive to our needs as a nonprofit. They've been willing to offer slightly discounted rates in order to help us fit the work into our budget, and they've helped us with technical language as we've applied to grants for this work.
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Create Digital Tools for Communication Platform for Parents
5.0 Jul 2, 2020They are very responsive, and not only take direction well but are helpful in refining it whenever they think of things that help the product beyond what I had envisioned. Their team is incredibly flexible in the ways in which they work with their clients. I’m personally a very hands-on founder, so I like to handle project management on my side of the engagement, and I really appreciate their willingness to let me interact directly with the developers and other individuals we need when we need them.
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Mobile Game Dev for Child Advocacy Nonprofit
5.0 Jan 3, 2019Simform’s customer service is excellent, and we were completely satisfied with how they managed the project. They were mindful of our requests, and they were flexible with a development schedule. They have remained helpful in answering our questions even though the engagement has ended.
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AI & Custom Software Dev for Shipment Monitoring Co
5.0 Mar 18, 2025Beyond their professionalism, what truly set Simform apart was the friendliness and helpfulness of the entire team. From engineers to project managers, everyone was approachable, eager to assist, and genuinely invested in the project's success. This collaborative and solution-oriented mindset made working with them a seamless and positive experience.
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29 of 37 Custom Software Development reviews are 5 stars8 new reviews for Custom Software Development in past 6 months$50,000 – $199,999 avg. project costRead 37 ReviewsCustom Software Development PROJECT HIGHLIGHT
Mobile App & Software Development for Medical Device Company
5.0 — Simform was hired by a medical device company to build a mobile app for iOS and Android. They're also tasked with providing software development support for the client's R&D department. Read moreWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently praise Simform for their cost-effectiveness and overall value, highlighting that their pricing aligns well with the quality of work delivered. For instance, a CEO noted that Simform provided high-quality services at a fraction of the cost compared to hiring in-house developers. Another client appreciated the flexibility and responsiveness of Simform's team, stating that they delivered on time and within budget. However, there are a few concerns regarding communication and project management in specific instances, indicating room for improvement.Was this helpful?
See All Locations (9)Chicago, IL
73 West Monroe Street
Chicago, IL 606036 - 9
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$50,000+$50 - $99 / hr1,000 - 9,999Serves CaliforniaServices provided
10% Custom Software Development10% AI Agents10% AI Development +7 services10% BI & Big Data Consulting & SI10% Blockchain10% Cloud Consulting & SI10% DevOps Managed Services10% IT Staff Augmentation10% Mobile App Development10% Web DevelopmentSee all 98 projectsVention is a bespoke software development company specializing in custom software creation and full-stack software development. Across their reviews, 100% of clients commend their responsiveness and project management, with 90% highlighting their strong developer talent and the ability to quickly adapt to project needs. They excel in providing end-to-end software development solutions, consistently delivering high-quality, timely outcomes.
Reviews mention Timely
The reviews for Vention consistently highlight their commitment to timely delivery and responsiveness. Clients noted that projects were completed on schedule, with one stating, 'Items delivered on time' and another mentioning, 'They always delivered on time and with high quality.' Overall, the sentiment regarding timeliness is overwhelmingly positive, with clients expressing satisfaction with Vention's ability to meet deadlines and adapt quickly to changing project needs, emphasizing their reliability in project management.-
Web Services, Software, & API Dev for Business Scaler Co
5.0 Sep 27, 2024The reliability of the quality of work and punctuality of deliveries from the Vention team members have been consistently maintained. This includes meeting project milestones on time, adhering to specifications, and ensuring deliverables meet the expected standards.
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E-Commerce Platform Dev for Online Flower Gifting Business
5.0 Sep 3, 2024Delivered in a timely fashion. Conversion rate the same or higher compared to the old platform. Decreased number of incidents with the new platform.
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Salesforce & QA Staff Aug Services for Caregiver Org
5.0 Aug 30, 2024Their work has been delivered on time, and there have been no issues with meeting delivery timelines. The team has effectively responded to our needs, ensuring smooth and efficient progress throughout the project.
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Platform, Web App & Mobile App Dev for Software Company
5.0 Aug 20, 2024Very high quality work always delivered on time. Very responsive to changes and updates to the project.
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Custom Software Development for PR Firm
5.0 Aug 6, 2024Always on time, quick/efficient with communication and reliable. When we needed something we got it.
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0 of 2 reviews are 5 stars1 new review for Custom Software Development servicesUnknown avg. project costRead 2 Recent ReviewsReviewed 2 times in the past 6 months
Recent reviews for Vention highlight strong client satisfaction, particularly regarding the quality of their engineers and responsive account management. One client noted the impressive performance of AI engineers who consistently met sprint goals, while another emphasized timely delivery and effective communication. Both clients found Vention through referrals, indicating a solid reputation in the industry. Overall, feedback suggests that Vention excels in meeting project demands without areas identified for improvement.Was this helpful?
45 of 50 Custom Software Development reviews are 5 stars5 new reviews for Custom Software Development in past 6 months$200,000 – $999,999 avg. project costRead 50 ReviewsCustom Software Development PROJECT HIGHLIGHT
IT Staff Aug & Custom Software Dev for AI Co
5.0 — Vention provided staff augmentation for an AI company. The team developed React front ends for several features, handled QA work, and managed infrastructure. Read moreWas this helpful?
Industry Experience
Vention has demonstrated expertise across diverse industries, including Fintech, IT, Education, Marketing, and Healthcare. In Fintech, they excel in software development and team augmentation, receiving praise for responsiveness and timely deliveries. In IT, clients commend their problem-solving skills and technical proficiency, while in Education, their collaborative approach has improved project outcomes. Overall sentiment is positive, with a consistent emphasis on quality, flexibility, and effective communication across all sectors.
Read All ReviewsSelect Industry to see insights
Advertising & marketing Education Business services Financial services Food & Beverage Software eCommerce Healthcare Logistics & Supply Chain Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Transportation IT Services Real estate Media Arts, entertainment & music Utilities Chemicals & Biotechnology Consumer Products Information technology Other IndustryWas this helpful?
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UndisclosedUndisclosed250 - 999Dublin, CA
Services provided
10% Custom Software Development20% DevOps Managed Services20% Mobile App Development +4 services15% Application Testing15% BI & Big Data Consulting & SI10% AR/VR Development10% IT Strategy ConsultingBhavna Corp. Is a Noida, India-based application development firm. Their services include Mobile App Development and DevOps Managed Services.
Read moreSee All Locations (2)Dublin, CA
3051, Copper Peak Drive,
Dublin, CA 945681
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Ability to Deliver considers three criteria:
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List of the Top 15 California Custom Software Development Companies
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$25,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Custom Software Development70% Other -
$50,000+$100 - $149 / hr50 - 249Newport Beach, CA
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Custom Software Development60% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.1/40.019.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
16% Custom Software Development84% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
30% Custom Software Development70% Other -
$25,000+$50 - $99 / hr10 - 49Solana Beach, CA
Ability to deliver
36.5/40.017.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
80% Custom Software Development20% Other -
$25,000+$50 - $99 / hr50 - 249San Jose, CA
Ability to deliver
39.4/40.019.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
25% Custom Software Development75% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
45% Custom Software Development55% Other -
$10,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
35.8/40.019.8/20 Reviews10/10 Clients & Experience6/10 Market PresenceService focus
40% Custom Software Development60% Other -
$100,000+$150 - $199 / hr250 - 999Los Angeles, CA
Ability to deliver
35.7/40.016.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$25 - $49 / hr50 - 249Sacramento, CA
Ability to deliver
37.3/40.018.8/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$25 - $49 / hr50 - 249San Francisco, CA
Ability to deliver
37/40.017.6/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
36.3/40.016.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Custom Software Development70% Other -
$5,000+$100 - $149 / hr50 - 249Pasadena, CA
Ability to deliver
34/40.017.6/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
40% Custom Software Development60% Other -
$10,000+$50 - $99 / hr50 - 249San Diego, CA
Ability to deliver
33.8/40.018.6/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
40% Custom Software Development60% Other -
$25,000+$150 - $199 / hr10 - 49El Segundo, CA
Ability to deliver
33.5/40.017.4/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
65% Custom Software Development35% Other -
$5,000+$25 - $49 / hr50 - 249Altadena, CA
Ability to deliver
39.1/40.020/20 Reviews9.5/10 Clients & Experience9.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$10,000+$50 - $99 / hr50 - 249San Jose, CA
Ability to deliver
36.1/40.018.4/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
25% Custom Software Development75% Other -
$25,000+$100 - $149 / hr10 - 49Irvine, CA
Ability to deliver
36/40.016.6/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$150 - $199 / hr10 - 49Sacramento, CA
Ability to deliver
35.9/40.018.4/20 Reviews9.3/10 Clients & Experience8.2/10 Market PresenceService focus
30% Custom Software Development70% Other -
$50,000+$50 - $99 / hr50 - 249Los Angeles, CA
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$5,000+$100 - $149 / hr10 - 49El Segundo, CA
Ability to deliver
39.1/40.019.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% Custom Software Development90% Other -
$1,000+$50 - $99 / hr10 - 49San Diego, CA
Ability to deliver
39.1/40.020/20 Reviews9.7/10 Clients & Experience9.4/10 Market PresenceService focus
10% Custom Software Development90% Other -
$10,000+$50 - $99 / hr50 - 249Berkeley, CA
Ability to deliver
36.7/40.017/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$100 - $149 / hr10 - 49Los Angeles, CA
Ability to deliver
39/40.019.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Custom Software Development90% Other -
$50,000+$25 - $49 / hr50 - 249San Francisco, CA
Ability to deliver
36.4/40.016.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$50,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
36/40.016.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$150 - $199 / hr10 - 49Vista, CA
Ability to deliver
36.5/40.017/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Custom Software Development80% Other -
$10,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
34.8/40.018.4/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
30% Custom Software Development70% Other -
$100,000+$100 - $149 / hr10 - 49San Francisco, CA
Ability to deliver
36.1/40.016.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
20% Custom Software Development80% Other
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