Web Development Agencies in California

139 web development agencies are listed in California, United States. 112 have been assessed on the Agency List Score as of October 2026; 3 of them share the top score of 97.

Ranked · 95 of 112 assessed

Ordered by Agency List Score
Agency List Score
Custom Web Design And Development
97

Staff augmentation and cloud engineering for healthcare, fintech, and retail teams

Backend DevelopmentFrontend Development
Agency List Score
IMT
97

Systems integration and video collaboration for media and technology

API and Systems Integration
Agency List Score
Cheesecake Labs
97

AI, cloud, and blockchain development for web and mobile products since 2013

Backend DevelopmentFrontend Development
Agency List Score
Capitol Tech Solutions
96

Development and dev services for inbound lead capture and search visibility

Lead GenerationMarketing AutomationSearch Engine Optimization
Agency List Score
Guru TechnoLabs
96

Builds scalable web, mobile, and cloud-based software solutions

Backend DevelopmentFrontend DevelopmentHeadless CMS Development
Agency List Score
DigiSavvy
96

WordPress and Shopify development with marketing automation expertise

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
Vinta Software
96

Crafts digital products with Python and JavaScript expertise

Backend DevelopmentFrontend DevelopmentHeadless CMS Development
Agency List Score
Vardot
96

Enterprise Drupal solutions for diverse industries and digital needs

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
GoldenComm
96

Web design, development, and AI integration for smarter websites

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
iCommuneTech
95
Verified

Custom IT services and web development for diverse industries

Mobile App Testing
Agency List Score
Brand House
95
Verified

Paid search and local SEO for home services, legal, dental, and ecommerce clients

A B TestingAccessibility DesignAds Management
Agency List Score
QArea
95

Software development and QA for diverse industries

Backend DevelopmentFrontend Development
Agency List Score
OSP
94

Healthcare IT solutions and software development for improved patient care

Backend DevelopmentFrontend Development
Agency List Score
GetDevDone
93

Custom web development and AI solutions for agencies

Backend DevelopmentFrontend DevelopmentHeadless CMS Development
Agency List Score
Kalamuna
93

Designs and builds websites for mission-driven organizations

Backend DevelopmentFrontend DevelopmentSecurity Hardening
Agency List Score
Sebvia
92

Strategic design and development for impactful digital solutions

Backend Development
Agency List Score
PINT
92

Web development and digital consulting for websites, apps, and software

Backend DevelopmentFrontend Development
Agency List Score
Hook 42
91

Drupal and WordPress development with multilingual and SEO expertise

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
Expedition
75

Digital product studio specializing in web and mobile development

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
Fuerza Studio
75

Creates digital products, software, and apps with impactful design

Backend DevelopmentFrontend Development
Agency List Score
MicroComp
75

Develops and maintains websites with WordPress and e-commerce solutions

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
Art+Logic
74

Custom software and AI systems for complex business and technology challenges

Backend DevelopmentFrontend Development
Agency List Score
Metajive
74

Crafts user experience and applied AI for digital strategy

Accessibility RemediationAPI and Systems IntegrationBackend Development
Agency List Score
IES
74

Responsive web design and hosting with unlimited support

Accessibility RemediationAPI and Systems IntegrationBackend Development

Also in California · 44 not ranked here

27 have not yet been assessed on the Agency List Score. Alphabetical.
14 more listed here are not shown on this page.

About this ranking

What this page ranks

This page ranks 95 of the 112 assessed web development agencies in California, United States — the ones carrying a published score — out of 139 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Web Development in California, United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 112, so the strongest award available here is top 5%.

The 27 web development agencies not yet assessed are listed on this page but not ranked.

A further 17 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many web development agencies are in California, United States?
139 are listed on Agency List in California, United States. 112 of them have been assessed on the Agency List Score as of October 2026, and 95 of those carry a published score.
Which web development agency in California, United States is ranked highest?
3 agencies share the top Agency List Score of 97 among the 112 assessed agencies in Web Development in California, United States, so no single agency is named the highest.
Why are 44 web development agencies listed here but not ranked?
27 of the 139 listed have not yet been assessed on the Agency List Score. A further 17 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the Web Development in California, United States cohort of 112 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.