Our analysts identified the top outsourcing software development companies in California providing cutting-edge services that answer key business problems, from building technical software, designing websites or mobile apps to integrating operating systems and more. Narrow down your search by team size, budget, reviews and more to select the best developer for your company’s needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Transform Fast: Your App on iOS & Android Awaits!
Koderspedia is a Palo Alto-based software outsourcing company specializing in mobile app development for iOS and Android, custom web solutions, and UI/UX design. The team delivers work across platforms including React Native, Flutter, Node.js, and WordPress, with portfolio projects spanning eCommerce, real...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- Software Development
- Logo Design
- Show more
- Location
- Palo Alto, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKoderspedia Services
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Koderspedia Reviews & Testimonials

Web Development Review from Jason Troyan
We discovered Koderspedia through an online search, and it turned out to be one of the best decisions we've made for our real estate company's web development!The team at Koderspedia, particularly Peter, demonstrated exceptional professionalism, expertise, and dedication to delivering top-notch results. Peter's communication skills are outstanding- he was always available, responsive, and ensured we were on the same page throughout the project.The final product exceeded our expectations- a stunning, user-friendly, and highly functional website that perfectly represents our brand. Koderspedia's attention to detail, creativity, and technical prowess are truly impressive.We wholeheartedly recommend their services and appreciate the fantastic work they've done for us!Thank you, Peter and the Koderspedia team!

Web Design Review from Nina Di Carlo
Koderspedia' work was easy to implement, and we saw a 95% increase in sales and traffic after the site's launch. The Peter and the team communicated well and provided constant updates throughout. Their web design expertise and strong project ownership made for a fruitful engagement.

Web Development Review from Betty Rodrigues
Koderspedia delivered an exceptional web app for Gamesoft Montreal Company! Their team, led by Peter, showcased outstanding expertise and communication skills. Peter's prompt responses and clear updates ensured a seamless project experience. The final product exceeded our expectations- visually stunning, functional, and secure. Highly recommend Kordespedia for web app development!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsEngineering Intelligent Solutions Through Design and Code - Web, Mobile AI, Blockchain
SapientPro builds SaaS, Web3, and AI-driven software, having developed 200+ projects across fintech, eCommerce, and healthcare since 2017. Its team covers everything from smart contracts to ERP development. Best fit for startups and scaleups needing a tech partner for complex product builds...
Top Services:
- AI Development
- eCommerce Development
- Mobile App Development
- Web Design
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSapientPro Services
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SapientPro Reviews & Testimonials

Software Development Review from Slava Berkovich
SapientPro consistently delivers high-quality work that aligns with project requirements. The team demonstrates strong expertise in Angular, TypeScript, and JavaScript. Their project management and communication practices are highly effective, with weekly client meetings held to provide updates on progress and ensure alignment.

Software Development Review from Jeremy Ott
This team was extremely responsive from the start. They pulled together a comprehensive quote for my MVP and have delivered on all of the requirements. The daily updates from the product/project manager are extremely helpful and it’s clear that the team cares about the quality of work they deliver. The engineers working on the product are always willing to make recommendations and go above and beyond to make the experience and underlying infrastructure that much better.

eCommerce Development Review from Luc Vlekken
We've had the pleasure of working closely with this development team on several projects, and the experience has been consistently excellent. Not only are they highly skilled developers, but they also think along with us both from a technical and a product/customer perspective. Their proactive attitude, reliability, and ability to translate complex requirements into elegant solutions make them a true partner rather than just a supplier. Highly recommended.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSynergyTop is a custom software development company
SynergyTop is a healthcare-focused custom software development company offering healthcare platforms, EHR and FHIR integrations, patient portals, telehealth solutions, AI automation, web development, mobile apps and product engineering services...
Top Services:
- Web Design
- eCommerce Development
- UI/UX Design
- Web Development
- Mobile App Development
- Show more
- Location
- San Diego, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSynergyTop Services
Data sourced from the agency's DesignRush profileTrimark Stark BizCity Schoolicious Angel Shave Club
SynergyTop Reviews & Testimonials

UI/UX Design Review from Sam Grote
We were developing the next-generation of our key product and wanted to re-envision the UI/UX to be more modern, focused and intuitive. We were pleased with the deliverables, and we admired how the team took the challenge of handling a high-tech application they weren't previously familiar with. A communicative team, SynergyTop was transparent about their process, and their expertise in design resulted in an efficient workflow.

Mobile App Development Review from Susan Avarde
We have partnered with SynergyTop for mobile development projects. We have some bandwidth on this area, but for larger scopes of work which needed to be executed in a short period, SynergyTop supplied a much larger team. SynergyTop offered expertise across many complicated technical specifications, and they skillfully handled large-scale, intensive projects. We appreciates how many resources SynergyTop is willing and able to dedicate at a time, which shows their commitment to the work.

Mobile App Development Review from Dudley Gould
SynergyTop successfully launched our app and met our expectations. The team fixed bugs and provided a testing team with impressive skills. SynergyTop had impressive communication skills and was responsive via daily emails and Zoom meetings.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTurning Ideas Into Interactive Apps
AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...
Top Services:
- Mobile App Development
- Web Development
- eCommerce Development
- Software Development
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppCrops Services
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AppCrops Reviews & Testimonials
Nabula Warden's Review Sourced from Google
AppCrops built a CMS for us that easily integrated with our website. Easy to manage and flexible. It made content updates much simpler. Recommended group of developers 👍
Reverie Selah's Review Sourced from Google
We used AppCrops for web development services and the result exceeded expectations. The website is fast, modern, and aligns perfectly with our brand.
Hazel Lucas's Review Sourced from Google
We worked with AppCrops for mobile app development and had a great experience. The team was professional, responsive, and delivered a high-quality app for our business. Highly recommended for anyone looking for web or app development services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCustom Enterprise Software Development Company in USA
Custom Software Development and IT Consulting Company...
Top Services:
- Software Development
- eCommerce Development
- Web Development
- Mobile App Development
- UI/UX Design
- Show more
- Location
- San Jose, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTekki Web Solutions Inc Services
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Tekki Web Solutions Inc Reviews & Testimonials
Amandeep Singh's Review Sourced from Google
I had recently experienced with this company for Web development requirements. I highly impressed with the team's dedication to delivering quality results within timelines was truly commendable.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsThink Partner, Not Agency
Acquaint Softtech is an Official Laravel Partner with 15+ years of experience in software development. We specialize in Laravel solutions and excel in IT staff augmentation, remote development teams and outsourcing to deliver scalable, best results...
Top Services:
- Staff Augmentation
- IT Services
- Web Development
- eCommerce Development
- Mobile App Development
- Show more
- Location
- Highland, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAcquaint SoftTech Services
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Acquaint SoftTech Reviews & Testimonials
PARMAR MANSHUKA's Review Sourced from Google
⭐⭐⭐⭐⭐ As an employee, I can confidently say this software company is an outstanding place to work. The team’s dedication to excellence and innovation is inspiring. I appreciate the supportive atmosphere and opportunities for personal growth. It’s a privilege to be part of a company that produces top-notch software solutions.
balvantsinh dodiya's Review Sourced from Google
It has been two and a half year working as a senior developer for me here at acquaint softtech pvt ltd.I could say it is the best company I have ever worked for so far. The environment they provide feels like home. Best part is you can reach out anyone from management directly and they support you at every step.Acquaint softtech highest priority is customer satisfaction but not on the cost of employee, this is the company who takes care of it's employees as well as their clients.
NIMESH GARANIYA's Review Sourced from Google
Joined as a Python Developer Intern. Cultural Events, Birthday celebrations, Festival Celebrations are very exiting. Sessions for Learning something new every week and Survey with all employees about Company was an amazing idea. Support by Leaders, Colleagues, Management is very well. Process for learning with different concepts, Practical tasks, Project tasks, Performance updates and reviews, were all a very smooth process. From all members of the company, learned a lot and added/upgraded my skills, improve my mistakes, etc.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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