14 Best Web Development Companies in SF, USA (2026)

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San Francisco remains a major market for web products that need more than a polished front end. Local companies often need SaaS platforms, customer portals, ecommerce systems, internal tools, and websites connected to larger software ecosystems. Strong development partners increasingly combine UX, front-end and back-end engineering, integrations, testing, cloud infrastructure, and ongoing product support.

1. Gilzor

Gilzor develops web products for startups, small and midsize businesses, and established product teams. Its web development work covers requirements planning, UI/UX, front-end and back-end engineering, testing, deployment, and support after launch. The team works with JavaScript, TypeScript, React, Next.js, Node.js, Python, Django, FastAPI, SQL databases, AWS, and other technologies used in modern web applications.

Gilzor also handles ecommerce solutions, AI and machine learning web apps, accessibility, scalability, performance improvements, and maintenance. Its published materials describe remote work with businesses across the US, making it relevant to San Francisco teams comfortable with a distributed development model.

Key Facts

  • Best for: Startups and growing product companies needing full-cycle web engineering
  • Core services: Web development, UI/UX design, QA, business analysis, maintenance
  • Technologies: React, Next.js, Node.js, TypeScript, Python, Django, FastAPI, AWS
  • Project types: Web applications, ecommerce products, internal platforms, AI-enabled web products
  • Location: Remote delivery for US clients, with offices in Warsaw and Limassol

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2. Clay

Clay combines website design with front-end and back-end development from a San Francisco office at 300 Broadway. Its website practice covers content strategy, web design, interactive experiences, development, and CMS implementation, making the agency particularly relevant to companies that want branding and engineering handled within the same engagement.

Published client work includes web design and development projects for companies such as Meta, Slack, UPS, and Cisco. Clay also works on digital products and design systems, so its scope can extend beyond a standalone marketing website when the project requires a broader UX or product design layer.

Key Facts

  • Best for: Technology and enterprise companies with design-heavy web projects
  • Core services: Web design, web development, UX/UI, branding, CMS implementation
  • Specialization: Brand-led websites and digital product experiences
  • Location: San Francisco, California
  • Notable strength: Design and development managed within the same agency

Contact Information

  • Website: clay.global
  • E-mail: hey@clay.global
  • Facebook: www.facebook.com/claydesignstudio
  • Twitter: x.com/clayglobal
  • LinkedIn: www.linkedin.com/company/clayglobal
  • Instagram: www.instagram.com/clayglobal
  • Address: 300 Broadway, San Francisco, CA 94133
  • Phone: +1 415 796 6262

3. Azumo

Azumo is a San Francisco software development company working across web applications, mobile products, AI, data engineering, and custom enterprise software. Its web application services cover front-end and back-end engineering, APIs, progressive web apps, custom application development, testing, deployment, and support.

The company operates with nearshore engineering teams aligned with US working hours. Its published technology coverage includes React, Next.js, Angular, Vue, TypeScript, Node.js, Python, Java, .NET, PHP, Golang, Ruby on Rails, cloud infrastructure, and database technologies. The model suits companies that need ongoing engineering capacity as well as complete application builds.

Key Facts

  • Best for: Companies building data-heavy or technically complex web applications
  • Core services: Web apps, custom software, AI development, data engineering, cloud development
  • Specialization: Nearshore engineering teams for US businesses
  • Location: San Francisco, California
  • Founded: 2016

Contact Information

  • Website: azumo.com
  • Facebook: www.facebook.com/azumohq
  • Twitter: x.com/azumohq
  • LinkedIn: www.linkedin.com/company/azumo-llc
  • Address: 40 Mesa, Suite 114, San Francisco, CA
  • Phone: 415.610.7002

4. Ramotion

Ramotion works with San Francisco technology companies on web design, web application development, branding, UX, and digital product experiences. Its web app practice covers custom applications, SaaS platforms, API integrations, ecommerce, fintech platforms, healthcare applications, and other browser-based products.

The agency also develops marketing and product websites for technology companies that need design systems, responsive interfaces, structured product storytelling, and development support. Ramotion operates primarily as a remote-first company but maintains a San Francisco meeting space at 28 Geary Street.

Key Facts

  • Best for: SaaS and technology companies combining web development with UX and branding
  • Core services: Web apps, web design, UX/UI, branding, design systems
  • Project types: SaaS, ecommerce, fintech, healthcare, education
  • Location: San Francisco, California
  • Notable strength: Close connection between product design and web development

Contact Information

  • Website: www.ramotion.com
  • E-mail: newbusiness@ramotion.com
  • Twitter: x.com/ramotion
  • LinkedIn: www.linkedin.com/company/ramotion
  • Instagram: www.instagram.com/ramotion
  • Address: 28 Geary St suite 650, San Francisco, CA 94108, United States
  • Phone: +1 415 831 7880

5. ArcTouch

ArcTouch develops websites, applications, and connected digital experiences for businesses ranging from growth companies to established enterprises. Its web engineering services include front-end and full-stack development, while its broader team can cover product strategy, UX and UI design, accessibility, and ongoing technical delivery.

The company can take responsibility for a complete project or place individual specialists within an existing client team. ArcTouch maintains a San Francisco office at 548 Market Street and also operates from New York, Austin, Toronto, London, Paris, and Florianopolis.

Key Facts

  • Best for: Established companies building multi-platform digital experiences
  • Core services: Web development, app development, product design, accessibility
  • Engagement models: Full project teams and team augmentation
  • Location: San Francisco, California
  • Specialization: Websites, apps, and connected experiences

Contact Information

  • Website: arctouch.com
  • E-mail: hello@arctouch.com
  • Address: 548 Market Street, San Francisco, CA 94104
  • Phone: +1-415-944-2000

6. Empat

Empat provides custom website development, SaaS development, business application engineering, mobile development, and software team augmentation. Its web work includes front-end development, back-end systems, custom applications, and website projects, with UI/UX and product development available as part of a wider engagement.

The company has an office at 535 Mission Street in San Francisco alongside locations in London and Kyiv. That combination can suit businesses that want a local US point of presence while using a distributed engineering organization for delivery.

Key Facts

  • Best for: Startups and businesses needing web development plus broader product engineering
  • Core services: Custom websites, SaaS, business applications, software development, staff augmentation
  • Project types: Web apps, startup products, internal business systems
  • Location: San Francisco, California
  • Delivery model: Distributed international development team

Contact Information

  • Website: www.empat.tech
  • E-mail: hello@empat.tech
  • Facebook: www.facebook.com/empat.tech
  • Twitter: x.com/EmpatTech
  • LinkedIn: www.linkedin.com/company/empat-tech
  • Instagram: www.instagram.com/empat.tech
  • Address: 535 Mission St, San Francisco, USA

7. Geekbears

Geekbears works primarily with founders, startups, and small businesses developing new digital products. Its process covers idea validation, UX and UI design, clickable prototypes, web and mobile application development, and post-launch maintenance.

The company emphasizes early validation before full development, which makes its model particularly relevant to founders who have industry knowledge but do not yet have an internal product or engineering organization. Geekbears was founded in 2015 and operates from 600 Chestnut Street in San Francisco.

Key Facts

  • Best for: Non-technical founders and early-stage startups
  • Core services: Product validation, UX/UI, web development, mobile development, maintenance
  • Specialization: New digital products from concept through launch
  • Location: San Francisco, California
  • Founded: 2015

Contact Information

  • Website: geekbears.com
  • LinkedIn: www.linkedin.com/company/geekbears
  • Address: 600 Chestnut St, San Francisco, CA 94133

8. Dayspring Partners

Dayspring Partners is a San Francisco digital consultancy providing web design, web application development, custom software, mobile development, and brand design. Its technical coverage includes JavaScript, TypeScript, Angular, Node.js, Python, PHP, WordPress, AWS, Salesforce technologies, and other tools used across web and enterprise projects.

The company is located in San Francisco's Bayview neighborhood and works with organizations across the Bay Area, Silicon Valley, and other markets. Its service mix makes it suitable for businesses where the web project overlaps with custom software, Salesforce, branding, or mobile requirements.

Key Facts

  • Best for: Organizations needing web development alongside custom software or Salesforce work
  • Core services: Web development, custom software, web apps, mobile apps, brand design
  • Technologies: JavaScript, TypeScript, Angular, Node.js, Python, PHP, WordPress, AWS
  • Location: San Francisco, California

Contact Information

  • Website: www.dayspringpartners.com
  • E-mail: info@dayspringpartners.com
  • Phone: 415.247.9420

9. Proleadsoft

Proleadsoft is a San Francisco digital agency working across websites, web applications, custom software, mobile development, and digital marketing. Founded in San Francisco in 2012, the company handles both standard business websites and more customized applications that require front-end, back-end, testing, deployment, and ongoing support.

Its published work includes business websites, cloud applications, talent management systems, healthcare-related applications, and WordPress projects. Proleadsoft can also connect development with SEO and digital marketing, which may be useful when the website itself is expected to support acquisition as well as business operations.

Key Facts

  • Best for: Local businesses combining web development with marketing requirements
  • Core services: Web development, custom software, mobile apps, web design, digital marketing
  • Location: San Francisco, California
  • Founded: 2012
  • Notable strength: Development and digital marketing available from one agency

Contact Information

  • Website: proleadsoft.com
  • E-mail: info@proleadsoft.com
  • Facebook: www.facebook.com/Prosleadingsoftware
  • LinkedIn: www.linkedin.com/company/proleadsoft
  • Instagram: www.instagram.com/proleadsoft
  • Address: 4686 18th Street, San Francisco, CA 94114
  • Phone: (415)-723-0776

10. CodingCrafts

CodingCrafts develops web and mobile applications, custom software, blockchain systems, and AI-enabled products from its San Francisco base. Its web practice includes custom applications, React development, Next.js, CMS work, integrations, performance improvements, and application modernization.

The company supports both fixed-scope projects and dedicated development teams. Published examples include business management platforms and web products using technologies such as React, Node.js, Laravel, PHP, and Material UI. CodingCrafts also provides a defined handover process covering source code and documentation.

Key Facts

  • Best for: Startups and businesses needing custom web applications
  • Core services: Web development, custom software, mobile apps, AI systems, blockchain
  • Technologies: React, Next.js, Node.js, Laravel, PHP
  • Location: San Francisco, California
  • Engagement models: Fixed-scope development and dedicated teams

Contact Information

  • Website: www.codingcrafts.io
  • E-mail: contact@codingcrafts.io
  • Facebook: www.facebook.com/codingcraftsllc
  • LinkedIn: www.linkedin.com/company/codingcraftsllc
  • Instagram: www.instagram.com/coding.crafts
  • Address: 2261 Market St Ste 86310, San Francisco, CA 94114
  • Phone: +1 (650) 526-8926

11. SculptSoft

SculptSoft provides web application development using front-end, back-end, full-stack, UI/UX, and DevOps specialists. Its service model supports both complete project engagements and developer hiring arrangements for teams that need additional technical capacity.

The company maintains a US corporate office on Castro Street in San Francisco and a development center in Ahmedabad. This structure may fit businesses looking for a San Francisco business presence combined with offshore development capacity. SculptSoft also works on mobile applications, custom software, cloud projects, and other digital products beyond browser-based applications.

Key Facts

  • Best for: Companies using distributed web development teams
  • Core services: Web applications, front-end, back-end, full-stack development, UI/UX, DevOps
  • Engagement models: Project-based, short-term, and long-term development
  • Location: San Francisco, California, with development operations in Ahmedabad

Contact Information

  • Website: www.sculptsoft.com
  • E-mail: info@sculptsoft.com
  • Facebook: www.facebook.com/SculptSoft
  • Twitter: x.com/SculptSoft
  • LinkedIn: www.linkedin.com/company/sculptsoft
  • Instagram: www.instagram.com/sculptsoft
  • Address: 584 Castro St #2618, San Francisco, CA 94114-2512 United States
  • Phone: +14152822102

12. Simform

Simform provides software product engineering to startups and enterprises in the San Francisco market. Its services include custom software, web and mobile applications, cloud-native development, legacy modernization, enterprise platforms, integrations, real-time applications, data engineering, and ongoing managed engineering.

For web projects, Simform combines front-end and back-end engineering with product design, cloud infrastructure, QA, and modernization work. The company positions its San Francisco practice around embedded engineering teams that work alongside a client's existing product and technology organization.

Key Facts

  • Best for: Larger product teams and enterprises requiring extended engineering capacity
  • Core services: Custom software, web applications, cloud development, modernization, data engineering
  • Project types: Enterprise platforms, real-time apps, SaaS, modernized legacy systems
  • Market coverage: San Francisco and the wider Bay Area
  • Founded: 2010

Contact Information

  • Website: www.simform.com
  • Facebook: www.facebook.com/simform
  • Twitter: x.com/simform
  • LinkedIn: www.linkedin.com/company/simform

13. Marker Seven

Marker Seven is a San Francisco product development company working across digital ecosystems, software development, product design, AI and data, connected devices, and business strategy. Its work is broader than standard website production, with projects often involving operational platforms, service design, research, and custom digital systems.

The company has operated for more than 25 years and maintains a San Francisco office at the Ferry Building. Marker Seven is also a designated San Francisco Local Business Enterprise and has delivered digital work for organizations such as the San Francisco Health Service System.

Key Facts

  • Best for: Organizations building complex digital platforms rather than simple websites
  • Core services: Software development, digital strategy, product design, AI and data
  • Specialization: Digital ecosystems and custom product development
  • Location: San Francisco, California
  • Operating history: More than 25 years

Contact Information

  • Website: www.markerseven.com
  • Address: 1 Ferry Building, Suite 201, San Francisco, CA 94111
  • Phone: 415.447.2841

14. Origami

Origami provides product engineering services to San Francisco Bay Area clients from its New York headquarters and Bengaluru development center. Its San Francisco offering includes web development with Next.js, React, and headless architectures, alongside custom software, mobile development, AI products, data engineering, and dedicated teams.

The company focuses on experienced engineering teams and works across areas such as fintech, gaming, commerce, creator platforms, and AI-enabled products. Its model is relevant to San Francisco companies that do not require a local office but want an engineering partner explicitly aligned with Bay Area clients and working hours.

Key Facts

  • Best for: Product companies comfortable with remote senior engineering teams
  • Core services: Web development, custom software, AI, mobile apps, data engineering
  • Web technologies: Next.js, React, headless architectures
  • Market coverage: San Francisco Bay Area
  • Delivery locations: New York and Bengaluru

Contact Information

  • Website: origami.dev
  • E-mail: hello@origami.dev
  • LinkedIn: www.linkedin.com/company/origami-consulting-llc
  • Address: 641 Lexington Avenue, 14th Floor, New York, NY 10022, US
  • Phone: +1 (970) 710 5120

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Conclusion

Web development in San Francisco increasingly sits inside a wider product engineering process. A business website may need a CMS and conversion-focused front end, while a SaaS platform may require APIs, authentication, cloud infrastructure, analytics, integrations, and continuous development after launch. That makes scope definition one of the most important parts of choosing a provider.

Local office access can matter for workshops and stakeholder meetings, but it is not the only workable delivery model in the Bay Area. Distributed teams can also fit well when communication overlap, technical ownership, documentation, testing, and post-launch responsibilities are defined clearly. The most useful comparison is therefore between the type of product being built, the engineering depth required, and the way the development team will work with the business over time.

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