Top SaaS Development Companies in California

Best SaaS Development Companies in California

131 Companies-Rankings updated: August 20, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

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SynergyTop
SynergyTop is a custom software development company
SynergyTop 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
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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
View Profile
4.9 4.9 (10)
5.0 5.0 (6)
EffectiveSoft
FUELING DISRUPTION
FUELING DISRUPTION
EffectiveSoft is an AI-enabled product engineering company focused on digital products and enterprise systems. We combine software engineering, UX expertise, and AI capabilities to help companies build products that can adapt to changing requirements, integrations, and growth...
Top Services:
Software Development
Mobile App Development
Big Data Analytics
AI Development
ERP Consulting
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Location
San Diego, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
29 Projects Listed
View Profile
4.8 4.8 (9)
TechAhead
AI-Native App & Enterprise Software Development Company
AI-Native App & Enterprise Software Development Company
TechAhead, a global leader in AI-powered custom software development & cloud engineering services, trusted by Fortune 500 companies and enterprises worldwide. We are a Great Place to Work-certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications...
Top Services:
Mobile App Development
AI Development
Software Development
IoT
Staff Augmentation
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Location
Agoura Hills, California
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
26 Projects Listed
View Profile
4.8 4.8 (7)
4.8 4.8 (18)
Vention
Verified
Engineering peace of mind
Engineering peace of mind
Vention builds custom software across fintech, healthtech, and eCommerce, for clients like ClassPass, Mount Sinai, and Slice. Its ISO 27001-certified team serves 30+ industries and over 500 clients. With 20+ years of experience, the software development firm is best for businesses needing scalable...
Top Services:
Software Development
Staff Augmentation
Mobile App Development
Software Testing
Web Development
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Location
San Francisco, California
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
15 Projects Listed
View Profile
4.6 4.6 (6)
4.9 4.9 (19)
Yalantis
Verified
Full-Cycle IoT and Software Development company
Full-Cycle IoT and Software Development company
We deliver cutting-edge, scalable, and fully functional IoT hardware and software products and ecosystems that help clients achieve their specific objectives...
Top Services:
IoT
Software Development
Mobile App Development
AI Development
Big Data Analytics
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Location
California City, California
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
24 Projects Listed
View Profile
4.6 4.6 (3)
YourDigiLab
Built-To-Perform, Immersive Websites
Built-To-Perform, Immersive Websites
YouDigiLab is a Web Design Company, where digital innovation meets stunning design. We specialize in crafting customized, responsive websites that captivate and convert...
Top Services:
Web Design
Web Development
Logo Design
Digital Marketing
SEO
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Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
View Profile
4.6 4.6 (3)
4.8 4.8 (11)
JetRuby
AI-Enabled Сustom Software Development
AI-Enabled Сustom Software Development
We're JetRuby — AI-native, award-winning, and ISO-certified agency that's been shipping software since 2010. Our 250+ engineers turn bold ideas into production-ready products, starting from budgets of $50,000 and scaling all the way to enterprise roll-outs...
Top Services:
Web Development
Software Development
Mobile App Development
Web Design
AI Development
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Location
San Francisco, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
33 Projects Listed
View Profile
4.5 4.5 (2)
ITRex Group
Your Innovation Partner
Your Innovation Partner
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...
Top Services:
Software Development
Mobile App Development
Software Testing
AI Development
IoT
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Location
Aliso Viejo, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
View Profile
4.5 4.5 (2)
4.9 4.9 (14)
Gecko Dynamics
Since 2002 in the software development business. Companies from 27 industries choose us.
Since 2002 in the software development business. Companies from 27 industries choose us.
With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation to post-launch support, we're dedicated to driving progress for our clients across industries...
Top Services:
Software Development
Mobile App Development
Web Development
Staff Augmentation
IT Services
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Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Portfolios Count
11 Projects Listed
View Profile
4.3 4.3 (1)
4.6 4.6 (10)
Ambsan Digital
Building the Future, Code At A Time
Building the Future, Code At A Time
Ambsan Digital is a full stack company specializing in high-performance web and mobile app development. We transform ideas into scalable digital products, offering end-to-end services from UI/UX design and custom web platforms to native and cross-platform mobile applications. Our expert developers focus on...
Top Services:
Mobile App Development
Web Design
Web Development
Software Development
UI/UX Design
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Location
California City, California
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
View Profile
4.1 4.1 (1)
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GetDevDone
Engineering partner for digital agencies
Engineering partner for digital agencies
GetDevDone is the engineering partner for digital agencies...
Top Services:
Web Development
Web Design
WordPress Website Design
eCommerce Development
Mobile App Development
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Location
San Francisco, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
19 Projects Listed
View Profile
TST Technology
Your Trusted IT Consulting Company for Business Success.
Your Trusted IT Consulting Company for Business Success.
TST Technology is an IT consulting company that offers services such as UI/UX design, web and mobile app development, software development, and SaaS product development. They have completed over 40 projects across 15+ industries...
Top Services:
IT Services
UI/UX Design
Mobile App Development
Software Development
Web Development
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Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
View Profile
5.0 5.0 (22)
Yellow Systems
Get Started With the Magic of Custom Development!
Get Started With the Magic of Custom Development!
Yellow has a track record of assisting Y Combinator startups, Fortune 500 companies, and various clients. Get in touch with us to know more!...
Top Services:
AI Development
Software Development
Staff Augmentation
Web Development
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Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
16 Projects Listed
View Profile
Teamvoy
We Bring The Tech. You Get The Wins.
We Bring The Tech. You Get The Wins.
Teamvoy is an AI engineering and transformation partner. We help companies make smarter technology decisions and turn them into production-ready software...
Top Services:
Software Development
AI Development
Design Services
Web Design
UI/UX Design
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Location
Covina, California
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$10,000 - $25,000
View Profile
4.7 4.7 (29)
AlphaBOLD
Make the Right Choice.
Make the Right Choice.
Top ranking Microsoft Dynamics Partner providing consultation for Dynamics 365 CRM, NetSuite, Dynamics 365 Business Central, Salesforce, SharePoint, BI, Custom Software Development, Web app development, Azure with other Microsoft Solutions. AlphaBOLD based in San Diego, USA. Contact Us Now!...
Top Services:
CRM Consulting
ERP Consulting
Cloud Consulting
AI Development
IoT
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Location
Carlsbad, California
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
View Profile
3.0 3.0 (4)
Kaiasoft
Idea to Profitability
Idea to Profitability
Kaiasoft uses US project management and architects and offshore development for the wrench turning. We have a partnership with 3Steps4forward marketing company so your marketing department is on the same team and slack channels so everyone is on the same page. Build it once...
Top Services:
Software Development
Location
Pleasanton, California
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Portfolios Count
1 Project Listed
View Profile
Developer Partners
We Develop Reliable Software That Runs Smoothly
We Develop Reliable Software That Runs Smoothly
Dynamic custom software development company specialized in building ERP, CRM, ATS, CMS, and e-commerce solutions. Our technology stack is .NET, SQL, Entity Framework, Angular, and Typescript...
Top Services:
Software Development
Software Testing
Web Development
Mobile App Development
DevOps Consulting
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Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
6 Projects Listed
View Profile
AppCrops
Turning Ideas Into Interactive Apps
Turning 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
View Profile
5.0 5.0 (3)
Greensighter
Custom software development firm
Custom software development firm
Greensighter is a full-cycle software development studio. We build custom software, AI agents, and MVPs...
Top Services:
Mobile App Development
Software Development
AI Development
Wearables
IT Services
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Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
2 Projects Listed
View Profile
Azumo
Verified
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo builds custom web, mobile, and AI software with nearshore teams in South America, serving Meta, Omnicom, and the Discovery Channel. Its SOC 2-certified engineers delivered 40%+ search precision gains for Meta. Best fit for startups and enterprises needing U.S.-aligned nearshore development teams...
Top Services:
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
Show more
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
View Profile
4.8 4.8 (12)
4.6 4.6 (20)
CodeStringers
Zoho consulting, development and integration services for operationally complex organizations.
Zoho consulting, development and integration services for operationally complex organizations.
CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...
Top Services:
Software Development
AI Development
Web Development
CRM Consulting
ERP Consulting
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Location
Santa Cruz, California
Number of Employees
50 - 99
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
View Profile
4.4 4.4 (2)
Blue Trail Software
More Than Code We Build Trust Through Craft & Commitment
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...
Top Services:
Software Development
AI Development
Big Data Analytics
Mobile App Development
UI/UX Design
Show more
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
View Profile
Zavod-IT
We Build Tomorrow, Today
We Build Tomorrow, Today
With 15 years of experience, we specialize in developing startups, cryptocurrency exchanges, cashback platforms, Telegram bots, and complex software solutions for clients across the USA and Europe. Our expertise guarantees tailored, high-quality solutions for diverse industries and business needs...
Top Services:
Software Development
Web Development
UI/UX Design
eCommerce Development
Blockchain
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Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$60/hr
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Admios
Nearshore Software Development Services
Nearshore Software Development Services
Clear your backlog and ship products you're proud of faster with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need tech talent fast...
Top Services:
Mobile App Development
Software Development
Staff Augmentation
Web Development
eCommerce Development
Show more
Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$70/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
View Profile
4.6 4.6 (5)
Povio
Design and Development Done Right!
Design and Development Done Right!
Povio is a company that is based in San Francisco and specializes in designing and developing digital products that make a positive impact. With over 1000 successful projects delivered and a team of over 200 skilled professionals, we have collaborated with multinational companies like VW, unicorns such as...
Top Services:
Product Design
Web Development
UI/UX Design
Mobile App Development
Web Design
Show more
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$70/hr
Minimal Budget
$1,000 - $10,000
View Profile
3.0 3.0 (1)
Need Help Selecting The Right SaaS Development Agency in California For Your Project?
We'll Find The Best Agencies For You.
TELL US ABOUT YOUR PROJECT

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Best SaaS Development Companies in California

SynergyTop is a custom software development company

FUELING DISRUPTION

AI-Native App & Enterprise Software Development Company

Engineering peace of mind

Full-Cycle IoT and Software Development company

Built-To-Perform, Immersive Websites

AI-Enabled Сustom Software Development

Your Innovation Partner

Since 2002 in the software development business. Companies from 27 industries choose us.

Building the Future, Code At A Time

Engineering partner for digital agencies

Your Trusted IT Consulting Company for Business Success.

Get Started With the Magic of Custom Development!

We Bring The Tech. You Get The Wins.

Make the Right Choice.

Idea to Profitability

We Develop Reliable Software That Runs Smoothly

Turning Ideas Into Interactive Apps

Custom software development firm

Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

Zoho consulting, development and integration services for operationally complex organizations.

More Than Code We Build Trust Through Craft & Commitment

We Build Tomorrow, Today

Nearshore Software Development Services

Design and Development Done Right!

Related Services in California

Related Software Development Specializations in California

Popular Services

Latest Trends Related to SaaS Development

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