Best SaaS Development Companies in California

9 Companies - Rankings updated: August 20, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × California ×
  • Bytes Technolab Inc.

    Verified Verified by the DesignRush team for authenticity and credibility.

    Engineered for the AI Era

    Bytes Technolab Inc. is dedicated to driving digital transformation for global enterprises as a trusted enterprise software development agency. Specialized knowledge positions us as industry leaders in AI, product engineering, and workflow automation. Visit our site to learn more...

    Location
    Pleasanton, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    12 Projects Listed

    Bytes Technolab Inc. Services

    • AI Development
    • Web Development
    • Mobile App Development
    • Software Development
    • Web Design
    • DevOps Consulting
    • IT Services
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Healthy Planet Canada
    • Ragnar
    • Alliance Consume Group
    • Celebration Giftware
    • NEBO
    Data sourced from the agency's DesignRush profile

    Bytes Technolab Inc. Reviews & Testimonials

    • Rocco Bombardieri
      Rocco Bombardieri Director of PMO at The Influence Agency
      5.0

      Web Development Review from Rocco Bombardieri

      The Bytes Technolab team combines talent and efficiency seamlessly. They consistently deliver high-quality work, with a project manager ensuring everything stays organized. Every project theyve handled has been executed flawlessly and delivered on time. Their dedication, along with the hard work of team members like Sachin and Shubham, has made them a valuable and reliable partner in our operations.

    • Richard Jones
      Richard Jones Marketing at Romanoff International
      5.0

      Web Design Review from Richard Jones

      We've been working with Bytes Technolab for some time now and we're thoroughly impressed with their services. Their team is highly skilled and experienced in web, mobile, and Magento development and have provided us with tailored business solutions for our company, resulting in a huge boost to our website and sales traffic! Despite the time difference, their team is very communicative, patient, and professional. I would highly recommend Bytes Technolab to anyone looking for a team of high-quality web developers and marketers!

    • Devin White
      Devin White VP, Product at Prospera
      5.0

      Web Development Review from Devin White

      I can highly recommend the Bytes Technolab team. I've worked with Bytes on 3 different projects now and have been highly impressed. The attention to detail is strong, they work quickly, and they communicate well. Across 3 projects, I can only remember one instance of dissatisfaction, which was immediately resolved and fixed. What impresses me most about Bytes is the level of value that they provide. Highly recommend.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • World-Class Software Engineering Partner

    Dream X is a full-cycle software development company dedicated to building high-performance products. Founded in 2022 by Alexandr Korshykov, we partner with businesses worldwide to deliver end-to-end technical solutions...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    15 Projects Listed

    DreamX Services

    • UI/UX Design
    • Web Design
    • Product Design
    • Mobile App Development
    • Web Development
    • eCommerce Development
    • Software Testing
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Pladri
    • Greek Time Corp.
    • PropTexx
    Data sourced from the agency's DesignRush profile

    DreamX Reviews & Testimonials

    • Yuriy Husev
      Yuriy Husev Head of Marketing at DMT Business Development
      5.0

      UI/UX Design Review from Yuriy Husev

      We hired DreamX to redesign our company website to better reflect DMTs modern approach to B2B lead generation and appointment-setting services. The DreamX team quickly understood our brands personality and transformed it into a sleek, fast, and conversion-focused digital experience. Their UX/UI team created user flows that made our content easier to navigate and optimized for lead capture. Communication was professional and consistent we always knew exactly what stage the project was in. The final result exceeded expectations: the new website not only strengthened our online presence but also positively impacted inbound lead quality. We highly recommend DreamX to any business looking for a creative and reliable design partner.

    • Vlad Kozhulenko
      Vlad Kozhulenko COO at Viso
      5.0

      UI/UX Design Review from Vlad Kozhulenko

      We worked with DreamX on developing a corporate website, and the results exceeded our expectations. Their team demonstrated a perfect balance of creativity, technical expertise, and attention to detail. From the very first step, they carefully analyzed our needs, created a modern and functional design, and ensured a smooth user experience. What impressed us most was their ability to translate our brand identity into a digital format that feels both professional and engaging. DreamXs communication was clear and proactive throughout the project, which made the entire collaboration smooth and efficient. I highly recommend DreamX to any company looking for a reliable partner in web and UI/UX design. They not only deliver on time but also go the extra mile to make sure the final product truly stands out.

    • Iryna Liashko
      Iryna Liashko Digital Marketing Specialist at SoloWay Technologies
      5.0

      Web Design Review from Iryna Liashko

      We partnered with DreamX to redesign our corporate website and improve its overall user experience. Their team approached the project with a clear strategy, focusing on both visual appeal and usability. From the very beginning, communication was excellent, every step of the process was transparent, and we received timely updates along with interactive design prototypes. DreamX demonstrated strong expertise in UX/UI, helping us simplify complex flows and create a design that looks modern, clean, and fully responsive. The final result exceeded expectations: the site now feels intuitive, fast, and visually consistent across all devices. Were very satisfied with the collaboration and highly recommend DreamX for any UX/UI design projects.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 100% Focused on Apps

    We design and develop top-rated mobile and web apps for startups and SMEs. E-commerce, Healthcare, Marketplaces, and more. Our clients rate us for 5 out 5 - check out why!...

    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    30 Projects Listed

    Solveit Services

    • Mobile App Development
    • Software Development
    • Web Design
    • Design Services
    • AI Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hemie.se
    • RVista
    • Lifepal AB
    • Gumb
    • Jabal
    • MyRaceData
    • JobJob.md
    • Burger King
    • OIIO
    • Leviosa
    Data sourced from the agency's DesignRush profile

    Solveit Reviews & Testimonials

    • Mitya Smusin
      Mitya Smusin CEO at Yellow Systems
      5.0

      Staff Augmentation Review from Mitya Smusin

      Solveit managed our comprehensive eCommerce project, developing a full-featured web platform with Node.js and React technologies. The agency also created a Flutter-based mobile app for seamless data synchronization across iOS and Android devices. We were thoroughly pleased with Solveit's expertise and adherence to deadlines. It provided timely updates and communicated openly about our project's status. Solveit's proactive approach and transparency were exceptional, particularly during the staff augmentation process, where the agency efficiently matched us with qualified candidates and facilitated a smooth onboarding. We were satisfied with Solveit's high-quality work and exceptional support.

    • Anna Harissis
      Anna Harissis CEO and Co-Founder at OUT CO
      5.0

      Design Services Review from Anna Harissis

      They have an incredibly hardworking team at affordable pricing. SolveIt has built the app earlier than expected, and they continue to complete new tasks within the client's budget and timeline.

    • Gabriel Sabadin
      Gabriel Sabadin Founder & CEO at LifePal AB
      5.0

      iPhone Review from Gabriel Sabadin

      We engaged SolveIt to develop a minimum viable product (MVP) app, including a user-friendly iOS design, an artificial intelligence (AI) model, and a monetization strategy while ensuring General Data Protection Regulation (GDPR) compliance and preparing for future integrations. Despite a tight deadline, SolveIt delivered the app on time and efficiently handled beta-testing within three months, allowing us to gather feedback and launch successfully. We acquired our first 1,000 users within a month of launching the app. SolveIt's team communicated effectively, addressed issues proactively, and maintained a high level of autonomy, bringing diverse expertise that greatly benefited our project. We appreciate the agency's dedication and professionalism.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Building unicorns

    We take ideas and turn them into software products users love. Whether it's building the next unicorn or reimagining your existing application. We solve real-life challenges through design thinking and game-changing software. Since 2010...

    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed

    UPDIVISION Services

    • Software Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • Fintech Industry
    • Standard Technology
    Data sourced from the agency's DesignRush profile
  • AI-enabled Software Development

    Capital Numbers are an award-winning Digital Transformation and Engineering Firm offering end-to-end software development solutions to Enterprises, SMEs, Digital Agencies, and Startups worldwide. Pricing starts at $25/hour...

    Location
    San Francisco, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    15 Projects Listed

    Capital Numbers Services

    • Web Development
    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • Staff Augmentation
    • Cloud Consulting
    • eCommerce Development
    • WordPress Website Design
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Reuters
    • Consumer Reports
    • ST Engineering
    • Condé Nast
    • Fundation
    • Stoneacre Motor Group
    • Mount Sinai
    • Doosan
    • DigitalMarketer
    • CreditSesame
    Data sourced from the agency's DesignRush profile
  • Digital Transformation Agency.

    Appinventors stands as a prominent Digital Transformation Agency, enabling businesses to prosper within the contemporary digital landscape. At Appinventors, we pride ourselves on delivering exceptional customer support and assistance. Whether you're facing technical challenges or seeking guidance on your...

    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000

    Appinventors Inc Services

    • IoT
    • Mobile App Development
    • Digital Services
    • UI/UX Design
    • Software Development
    • Blockchain
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Adidas
    • Subway
    • KFC
    • Jubilant FoodWorks
    Data sourced from the agency's DesignRush profile
  • We are a Creative Development Agency & Consultancy.

    Clients choose Naked Development because as a full-service software development company, we go beyond building apps—we help you build your business. Our groundbreaking solutions reshape the landscape of startups, guiding founders from idea to launch while sidestepping common pitfalls. Let's connect!...

    Location
    Irvine, California
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    12 Projects Listed

    Naked Development Services

    • Mobile App Development
    • UI/UX Design
    • Digital Marketing
    • Branding
    • Product Design
    • Software Development
    • Business Consulting
    • AI Development
    • Design Services
    • Graphic Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Car Blip
    • Vigor Fitness
    • Snap MD
    • Basebalism
    • Trucks.com
    • bidmylisting.com
    Data sourced from the agency's DesignRush profile

    Naked Development Reviews & Testimonials

    • DJA
      DJA Founder & CTO at Undisclosed
      1.0

      Mobile App Development Review from DJA

      We paid $117,000 across two contracts $68,000 for development and $49,000 for marketing to Naked Development for a consumer-ready iOS and Android app and a full marketing funnel. They delivered neither. We originally requested delivery by Black Friday, the most critical sales window for a parent-focused consumer app. Naked Development proposed December as an alternative. That deadline was their own suggestion. They missed it. We extended to January, then February, then April, then issued a formal written Notice of Breach before giving them one final deadline the following June. Every deadline was missed. We were over 300% over timeline. When we finally handed the codebase to a second development firm, the app would not build on either iOS or Android. We paid thousands just to get it running enough to assess the damage. The contracted team was never fully assembled. Tickets were put on hold without explanation. Subscription management, the most critical feature of the app, was broken for months and never fixed by Naked. The commercial video Naked produced was unusable by launch, as cultural references had gone stale during the delay. We are software engineers who have led teams of over 100. These were not minor issues. They were basic, objective engineering failures. When we raised breach concerns with founder John Driscoll, his response was "let's just let our lawyers talk about it." We are aware of more than a dozen other former clients who experienced similar issues. Do not recommend.

    • Mimi Bouchard
      Mimi Bouchard CEO at Superhuman Inc.
      1.0

      Mobile App Development Review from Mimi Bouchard

      I hired Naked Development in 2022 to build a new version of my mobile app. I paid $203,000 upfront (spread over six months essentially everything I had saved from my first year in business), and was told the app would be completed in five months, by Fall 2022. Instead, the project turned into nearly a year of delays, almost done updates, and declining involvement from their team. My very small internal team and I ended up doing much of the project management and QA work ourselves because progress had stalled so severely. Despite constant reassurances, no functional product was ever delivered. By mid-2023, I hired multiple external development teams to assess the code. Every single one independently concluded that the app was non-functional, unstable, not scalable, and could not be launched. They warned it would crash immediately and required a complete rebuild. I then hired a neutral third-party auditor with zero connection to any agency and his report confirmed the same findings. After paying over $200K, I had nothing usable. When I factored in delays, internal time lost, expert audits, and the cost of rebuilding from scratch, the financial impact to my business exceeded $500,000. After multiple attempts to resolve the situation privately were unsuccessful, I filed a lawsuit, which is now a matter of public record (Superhuman Inc. v. Naked Development). The case is set for trial in early 2026. While litigation is never something a founder hopes for, at a certain point it became the only responsible path given the evidence and the financial damage. I strongly recommend extreme caution when considering this agency.

    • Jared Bossola
      Jared Bossola Owner at Jared F. Bossola, PLC.
      5.0

      Mobile App Development Review from Jared Bossola

      Working with people that are as creative as I am is awesome. Receiving top marks across the board, Naked. is an innovative team of artists. The client praises them for their outside-the-box thinking and ability to connect on a creative level. Throughout the project, they’ve demonstrated attentive service and communication.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • More Than Code We Build Trust Through Craft & Commitment

    Engineered with integrity. Backed by mentorship. Delivered with care. BTS transforms ideas into scalable, secure, and impactful digital products that deliver long-term value...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up

    Blue Trail Software Services

    • Software Development
    • AI Development
    • Big Data Analytics
    • Mobile App Development
    • UI/UX Design
    • Cybersecurity
    • DevOps Consulting
    • Cloud Consulting
    • IT Services
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Samsung
    • Cartier
    • Axeptio
    • AxisCare
    • Compredict
    • Odia
    • Precision
    • Bearing AI
    • Collaborative Classroom
    • Certain
    Data sourced from the agency's DesignRush profile
  • Let's Build Tomorrow Together.

    We are a brand and software development agency specializing in building eCommerce, iOS, and feature-rich websites and apps that move your business forward...

    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $185/hr
    Minimal Budget
    $10,000 - $25,000

    badpixel Services

    • Product Design
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Web Design
    • Social Media Marketing
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Disney
    • Netflix
    • UnRealSports
    • Peek Travel
    • Klassy
    • The Zeplin Speakeasy
    • KRAK
    • Terpli Inc.
    • TrueCraft
    • Blossom
    Data sourced from the agency's DesignRush profile

    badpixel Reviews & Testimonials

    • Jessica Dally
      Jessica Dally Review from Google
      5.0

      Jessica Dally's Review Sourced from Google

      "We loved working with badpixel! We had already started talking with some potential locations and we needed to quickly establish our logo and branding. With the questionnaire that kicked off our discovery, we were able to capture what we were looking for and it was clearly understood as we went into our first review and really liked what we saw. After a few modifications, we had our logo and style guide allowing us to start working on our social presence while the badpixel team continued to work on our Square website setup. Once the site was ready, they walked us through everything and we were able to jump in and take control! Getting a website up just before the holiday season was huge, it lead to our first sales and profit!"

    • Charlie Wellborn
      Charlie Wellborn Review from Google
      5.0

      Charlie Wellborn's Review Sourced from Google

      Badpixel did an excellent job developing our site (shophearton.com). They were responsive, communicated consistently with us and our marketing team, and met our aggressive deadline. Thanks Sheila & Chris!

    • Joemoney 42
      Joemoney 42 Review from Google
      5.0

      Joemoney 42's Review Sourced from Google

      Working with Chris has been so easy and we could not be happier with the branding for our business! Always very personable and responsive to our input. No need to look elsewhere for great branding! Thanks!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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