Top Web App Development Agencies in San Francisco

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All Web App Development Companies in San Francisco

TRIARE
4.9
(11 reviews)
TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.
19 works in Web Application
Located in Cherkasy, Ukraine (+3)
From €10,000 for Web Application
Worked in Beverage (+20)
Speaks English, Ukrainian
51-200 members
Plavno
5
(16 reviews)
AI-First Software Company: Secure Agents, Voice Assistants, and Scalable Cloud.
Top awarded
Plavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry. Fully-fledged teams of specialists cover each stage of product creation , from product management and analysis to design, development, testing, and ongoing support. We have a unique advantage , our pre-formed full teams work exclusively on products in their specific domains, such as Healthcare, E-Learning, FinTech, Travel & Hospitality, Fleet management and more. We can help you with: ✔ Web Development ✔ Mobile App Development ✔ CRM/CMS/SaaS Development ✔ Chat and Chatbot Development ✔ Web3 / DeFi / DAO / Smart contract ✔ WebRTC Stop struggling with bloated budgets and slow time-to-market. At Plavno, our fully-fledged team provides cost-effective and streamlined solutions that minimize technical debt and maximize your product's potential. With end-to-end support and a proven track record in the SAFe Scaled Agile Framework, we're the partner you need to succeed. LET’S CONNECT Let us help you choose the best path forward to deliver the perfect solution: sales@plavno.io
23 works in Web Application
Located in Alexandria, United States (+2)
From €10,000 for Web Application
Worked in Media (+19)
Speaks English, French(+2)
51-200 members
Designli
5
(16 reviews)
Build software people actually pay for.
Top awarded
Designli helps non-technical founders turn software into real, revenue-generating businesses. Most agencies hand over code and walk away, leaving you to build the business yourself . We work differently, measuring our success by your traction - real users on a live product and real signs that the business is growing. Every engagement is built around a guaranteed outcome : For founders starting from scratch , our TractionLab program puts a real user on a working MVP within 30 days, or your next month is free. From there, the whole team works to turn that first user into many, and early usage into real revenue. For founders who already have something live , we start with a free one-week Impact Week that pinpoints exactly what's holding your product back. You walk away with a customized plan and a guaranteed Day-30 outcome that clears those roadblocks, so you can get back to chasing traction and your vision instead of fighting your product. The burden is on us to prove we're the right partner. Picking a software development agency is one of the most important decisions you'll make as a founder, and we don't think that risk should fall entirely on you. That's why your first 14 days are fully refundable, and you can cancel any time with 30 days' notice. We work using Hypothesis-Driven Development . Building software is cheaper than ever with AI-empowered engineers; the hard part is knowing what to build and whether it worked. So every change we make carries a business metric and a clear bet about what it should move, and we measure whether it actually did. The result is a real feedback loop on whether your product is getting better each week and driving more usage and revenue. Each engagement is staffed with a small, senior pod that gives your product full-time focus and founder-level care , and is paid on outcomes, not promises.
8 works in Web Application
Located in San Francisco, United States (+2)
Budget on request
Worked in Banking & Financials (+9)
Speaks English
51-200 members
UASOFTDEV
5
(3 reviews)
Founder-led staff augmentation of AI-Ready Senior Developers and Dedicated Teams in 60 hours
UASOFTDEV is a founder-led staff augmentation of AI-Ready Dedicated Teams and Senior Software Engineers for small-mid companies. We believe AI doesn't replace experienced engineers. It makes the right engineers dramatically more effective. That's why every developer we provide uses AI as part of their daily workflow with tools like Claude, Cursor and GitHub Copilot, while all architecture, technical decisions, code reviews and production releases remain under experienced human ownership. Main engagement models. Staff Augmentation for companies looking to extend their existing engineering team with senior talent, and AI-Ready Dedicated Teams for businesses that need a complete delivery team with technical leadership capable of owning products, features or entire engineering initiatives. Every engagement is led directly by our Founders. Aleksey, CEO, works closely with clients to understand product goals, business priorities and team dynamics. Oleksandr, CTO, personally evaluates every engineer for technical excellence, communication and problem-solving skills. Our work is built around four core values: quality, clarity, transparency and a personalized approach to every client engagement. The process is simple: after a discovery call, we match engineers to your technology stack, product domain and culture, present a CTO-vetted shortlist and run contracting alongside onboarding. Staffing typically happens within 60 hours. Today, our teams support startups and product companies across Europe, UK and North America. UASOFTDEV's track record includes a 97% first-candidate acceptance rate, a 95.65% first-match success rate and an average client engagement of over 13 months. Founders respond to critical issues within two working hours. Whether you need one senior engineer or an AI-Ready Dedicated Team, our goal is the same: help you ship faster with engineers who communicate clearly, contribute from day one and solve complex problems independently.
5 works in Web Application
Located in San Francisco, United States (+12)
From €10,000 for Web Application
Worked in Automotive (+3)
Speaks English
11-50 members
OnePix LLC
5
(3 reviews)
Boutique development agency with strategic focus
OnePix is a web development studio working since 2018. We build and support online stores, custom web platforms, internal tools, AI-powered features and mobile apps. Main stack: WordPress and WooCommerce, Shopify, Laravel, React, Vue.js and React Native. We often take over complex existing projects: legacy code, ERP, CRM and payment integrations, slow sites. We work as a technical partner: we review the architecture, flag risks early and plan the work in stages. Many clients stay with us for long-term support. 300+ projects for clients in 36 countries. Calls in English. Documents and written communication in your language.
10 works in Web Application
Located in Miami, United States
From €5,000 for Web Application
Worked in Entertainment & Events (+9)
Speaks English, Dutch(+5)
11-50 members
SaM Solutions
5
(3 reviews)
SaM Solutions is an international provider of IT services and software solutions with over 30 years
Recommended
Top awarded
We focus on IT consulting and custom software engineering, catering to both the European and US markets by leveraging our global resources. Serving a wide range of clients, from startups and SMBs to global enterprises and government agencies, we deliver technological excellence, accelerate time to market, and ensure uncompromised software quality and security. SaM Solutions employs some of the most talented IT professionals in the industry. We continually invest in skills development and knowledge enhancement to ensure our clients receive world-class software solutions and services most cost-effectively. In every client engagement, we are committed to guaranteeing the success of IT processes and software systems.
26 works in Web Application
Located in Gilching, Germany (+5)
From €10,000 for Web Application
Worked in Industrial Goods & Services (+23)
Speaks English, German(+2)
501-1000 members
Roboto Studio
(0 review)
The best Next.js and Sanity agency
Top awarded
Roboto Studio is a web development agency in San Francisco. We build headless websites and web apps on Next.js, Sanity, and Shopify for companies that care about speed, search visibility, and content their own team can edit. Server-rendered, fully crawlable, and tuned for green Core Web Vitals with 90+ Lighthouse performance scores as standard. Recent work includes Topaz Labs, Global Cycling Network, and Slingshot Bio.
1 work in Web Application
Located in San Francisco, United States
From €20,000 for Web Application
Worked in Banking & Financials (+5)
Speaks English
11-50 members
Mind Studios
5
(4 reviews)
Long-Term Technology Partner for Growth-Stage and Mid-Market Companies
Recommended
Founded in 2013, Mind Studios is a custom software development company working with growth-stage and mid-market businesses across the US, UK, Europe, and MENA. The portfolio spans logistics platforms, real estate marketplaces, healthcare systems, and fitness ecosystems - operationally critical products built for companies where technology is central to how the business runs. The team engages at the architecture stage, before the critical decisions get locked in. Business analysis, technical scoping, and honest pushback on briefs that won't hold up at scale are standard. The goal from day one is a system that doesn't need to be rebuilt in two years. What distinguishes Mind Studios is what happens after launch. Scaling infrastructure, iterating on features, extending systems as the business grows - this is where most of the value gets built, and where long-term client relationships form. The average engagement runs over two and a half years. Many go considerably longer. 100+ specialists. 13 years in business. 70% client retention rate.
5 works in Web Application
Located in Dnepropetrovsk, Ukraine (+3)
From €20,000 for Web Application
Worked in Logistics & Supply Chain (+5)
Speaks English, Ukrainian
51-200 members
Halo Lab
5
(12 reviews)
Transforming your product idea into reality through custom design-driven development.
Top awarded
Halo Lab is an award-winning custom web app design and development company ⭐ Our team offers reliable, customized, and user-friendly solutions for your business. We transform your product ideas into reality with our expert, design-driven development approach. Let us bring your vision to life with our innovative and tailored services. WE ARE YOUR PARTNER IN: ✅ Enhancing user experiences with UI/UX design. ✅ Building your brand identity. ✅ Growing your online presence with website development. ✅ Creating smooth digital experiences with full-cycle web app development. ✅ Ensuring top-notch quality with QA. ✅ Boosting growth and visibility with SEO & marketing support. Let’s create your star with us.
4 works in Web Application
Located in Dubai, United Arab Emirates (+4)
From €10,000 for Web Application
Worked in Others (+18)
Speaks English
51-200 members
Instinctools
5
(10 reviews)
Your AI-powered Engineering Partner
Top awarded
Meet *instinctools - a global AI-powered software engineering company with over 25 years of experience. We help both SMBs and Enterprises build robust, scalable software solutions that excel in functionality and design. Our core services include: Agentic AI enablement Custom software development enhanced by deep AI expertise Digital product engineering Business process automation Legacy system modernization Advanced data analytics and visualization Cloud infrastructure and DevSecOps Headquartered in the USA (Maryland) and Europe (Germany), *instinctools offers convenient locations for meeting and collaborating directly with our clients. We have development centers in Poland, LATAM, India, and Kazakhstan that combine global expertise with a strong price-quality balance to ensure exceptional results across time zones. Our work is backed by ISO-certified quality standards, strategic partnerships with leading tech platform, and a long-standing commitment to engineering excellence. Instinctools holds a broad portfolio of regional and industry-specific certifications, including CIR, HIPAA, and other compliance frameworks required for regulated markets. The 2025 Annual Customer Satisfaction Index is 9.1 out of 10.
3 works in Web Application
Located in Potomac, United States (+4)
From €10,000 for Web Application
Worked in Construction (+10)
Speaks English, German(+1)
201-500 members
Dworkz
(0 review)
Making complex products simple, useful, and human.
Dworkz is a San Francisco UI/UX and product design studio for data-driven B2B SaaS companies. Since 2004, we've helped product teams turn complex workflows, dashboards, and data-rich interfaces into software people understand and adopt. We combine UX strategy, user research, usability testing, UI design, and design systems with in-house engineering, so every design decision holds up against real data, integrations, permissions, and performance. We also design AI-powered experiences, from LLM features to intelligent dashboards. Our work spans B2B SaaS, fintech, healthcare, and education, for midmarket and enterprise teams. Clients include Gett, Collective Health, Kantola, PubNub, Top Image Systems. Typical engagements: product redesigns, new SaaS products from zero to one, dashboard and data-visualization UX, design systems, and ongoing design partnership.
5 works in Web Application
Located in San Francisco, United States
From €10,000 for Web Application
Worked in Education (+4)
Speaks English, Hebrew(+1)
11-50 members
Spiral Scout
(0 review)
Full-cycle software engineering and production-ready AI, since 2010.
Spiral Scout is a San Francisco-based AI engineering firm, founded in 2010, that builds production-grade software and AI agent systems. You know your industry. What you don't need is another agency that ships a prototype and disappears the moment it's time to make it enterprise-ready. We're a team of 120+ engineers with 16 years of production engineering behind us, a certified Temporal Solution Provider, and the creators of Wippy.ai, our own runtime built for production-ready agent systems. Named Clutch Global Winner for AI Agents (2026), with 1520+ systems built. If you're done with prototypes that never leave staging and need a partner who can take your product from first users to enterprise-ready without a rebuild, this is us.
3 works in Web Application
Located in San Francisco, United States
From €1,000 for Web Application
Worked in Restaurants (+5)
Speaks English
51-200 members
Celadonsoft
5
(7 reviews)
Scalable systems for complex business operations — delivered with clarity and predictability.
We help growing and established companies turn complex software initiatives into clear, scalable, and well‑managed systems. Our job is more than just software design and development — our job is taking care of your success. We don't jump straight into development. We start with discovery, solution design, and business analysis to define scope, architecture, integrations, and priorities before a single line of code is written. This is how we reduce delivery risk and protect your budget. We focus on three solution domains: 1. Custom Business Systems & Operational Platforms 2. Mobile Products for Customers and Operations 3. AI‑Enabled Business Workflows (AI under senior engineering control) Our strongest industry experience is in Food & Beverage, Real Estate, and FinTech — with growing expertise in iGaming, EdTech, and Travel Tech. Why companies choose us: clarity before development, structured delivery with PM and QA, domain‑aware solutions, and AI‑accelerated senior engineering. We work best with growing mid‑market companies, multi‑location businesses, and organisations that have outgrown spreadsheets or disconnected tools. We work as an extension of your business, in tight communication and total transparency — so there's no waste of time on back‑and‑forth. Start with a Solution Discovery call – to clarify scope, architecture, and the right path before any build commitment.
31 works in Web Application
Located in Tuckahoe, United States (+3)
From €10,000 for Web Application
Worked in Education (+23)
Speaks English, German(+2)
51-200 members
SWC Partnership - part of the global UP Group
4.9
(17 reviews)
The local agency with a global reach.
Top awarded
🇬🇧 Welcome to SWC Partnership. We develop marketing strategies and campaigns to accelerate your sales and brand awareness . SWC is a full service marketing agency that works as an extension of your team . We deliver brand strategy , integrated marketing plans , creative concepts , creative production , transcreation, media planning/buying and campaign reporting . Our services are designed to be integrated into your existing infrastructure, either as a full service partner or for a specific discipline. Our expert teams are highly experienced in working across both B2B and B2C industries; whilst delivering international , national and local marketing solutions. We’re passionate about making a commercial difference to our clients and provide measurable and accountable marketing that drives ROI . We are headquartered in the UK and operate across Europe, with a special focus on the DACH region. We are an agile team of specialists and part of UP, THERE EVERYWHERE , the first global cloud based agency . Headquartered in Stockholm, Sweden , with a further 15 bases including Hamburg , Helsinki , London , New York , Dubai , Shanghai , Switzerland , Amsterdam and Palma among others. We offer a global agency solution whilst connecting you with teams locally . Providing local insight and appreciation of country nuances, we can plan, produce and deliver your international marketing programmes in each of your targeted countries and territories, as if you would in your home market. Through multilingual marketing managers and transcreation experts , we ensure your international sales & marketing is a success . Visit our website to find out more and contact us to discuss your requirements. www.swcpartnership.com Specialist petcare marketing: petcare.swcpartnership.com Specialist tech/manufacturing marketing: tech.swcpartnership.com
Looking for work in Web Application
Located in Greater London, United Kingdom (+5)
Budget on request
Worked in Beverage (+14)
Speaks English, Chinese(+7)
11-50 members
Emphasoft
5
(1 review)
We can take your project at the early pre-seed stage and bring it to millions of investments. We help startups grow: We help pre-seed founders easily grow from 1 developer to a robust startup team. Our goal is to help a startup secure a new round of investment. Quick MVP building: Our product experts will streamline your MVP to the most important features. This allows you to launch rapidly and prove your business case while strategically growing your business to attract new investors. Easy set up: We know how difficult it is to quickly find a development team. We handpick a dedicated team for your project in the shortest period of time. Teams can be fully integrated with project management solutions and adjusted to the client's time zone.
Looking for work in Web Application
Located in San Francisco, United States (+2)
From €1,000 for Web Application
Works in multiple industries
Speaks English
201-500 members
Cyntexa Labs Pvt. Ltd.
(0 review)
We Provide Value to You !!
We are a leading Salesforce Crest (Gold) Consulting Partner, ISV Partner, approved B2C Commerce Partner, and Nintex Premier Partner committed to delivering exceptional value and customer experiences. We are a passionate team of 300+ Salesforce experts helping 567+ companies across industries implement Salesforce successfully. Our services include Salesforce Implementation, Development, Customization, and Integration across all Salesforce Clouds- Marketing Cloud, Commerce Cloud, Service Cloud, Sales Cloud, and more. We also build Salesforce AppExchange Apps and offer end-to-end Digital Product Engineering services - from ideation and UI/UX design to custom development, QA testing, and post-launch support. 300+ Sales & Service Cloud Implementations 150+ Marketing Cloud & Pardot Projects with custom Journeys & automation 100+ B2B & B2C Commerce Cloud Implementations using SFRA 100+ Experience Cloud communities with chatbot, agent-chat & 3rd party integrations End-to-end Software Product Engineering - strategy, design, development, QA & support We also provide AWS and Google Cloud Platform services with expertise across Finance, Accounting, Real Estate, Retail, Professional Services, and Non-Profit domains.
Looking for work in Web Application
Located in San Francisco, United States
From €0 for Web Application
Works in multiple industries
Speaks English
201-500 members
WebAppsWorld
4.9
(9 reviews)
Web & Mobile Application Developer | Digital Solutions Specialist
Highly recommended
Top awarded
COMPANY PROFILE WebAppsWorld is a software development and digital solutions company focused on creating professional, affordable and business-driven digital products. The company designs and develops websites and applications tailored to client requirements, with an emphasis on modern technology, strong user experience, brand visibility and practical business outcomes. WebAppsWorld offers a multidisciplinary delivery capability spanning web development, mobile applications, e-commerce, graphic and brand design, SAP consulting and training, and digital learning solutions. CORE SERVICES • Website Design & Development – responsive business websites, landing pages, CMS solutions, e-commerce websites, redesigns and ongoing website support. • Mobile App Design & Development – custom Android and iOS solutions, business apps, e-commerce apps, customer portals, integrations, testing and deployment. • E-Commerce & Digital Commerce – product and service catalogues, customer account functionality, payment integration, online-store experiences and scalable commerce solutions. • SAP Consulting, Implementation & Training – implementation support, customization, integration, optimization, consulting, training and knowledge transfer. • eLearning & Instructional Design – learning content design, interactive eLearning, training videos, LMS-ready learning content and SCORM/xAPI-oriented solutions where required. • Graphic Design & Branding – logos, digital advertisements, banners, business cards, corporate identity materials, brochures, flyers, posters and other marketing collateral. • SEO & Online Presence – search-engine-focused website development and digital solutions designed to strengthen visibility and support customer acquisition.
3 works in Web Application
Located in Pinecrest, United States
From €1,000 for Web Application
Worked in Logistics & Supply Chain (+5)
Speaks English
1-10 members
Tacpoint, Inc.
(0 review)
We are a digital product agency on a mission to make life easier, for businesses and professionals.
We at Tacpoint specialize in the design and development of human-centered digital experiences and products. Since 1999, we have been solving problems for leading B2B brands and enterprises for various industries. Our interdisciplinary team takes pride in crafting engaging and delightful solutions that maximize value for users on the desktop and mobile platforms. With uncompromising efficiency and scalability, we help forward-thinking B2B businesses champion the digital culture.
1 work in Web Application
Located in San Francisco, United States
From €10,000 for Web Application
Worked in Banking & Financials
Speaks English
11-50 members
MTechZilla
5
(8 reviews)
Software Development Company for Product & Engineering Teams
Highly recommended
MTechZilla is an Offshore Software Development Company helping startups and product teams build their custom software products or extend their existing engineering team, without the cost and delays of local hiring. Over the years, we've partnered with companies across the US and Europe to deliver 40+ products spanning across web apps, mobile apps, AI-powered applications, cloud-native software on AWS, and legacy system modernization. Some of our clientele include Chicago based Hospitality startup (which grew from a 2-person startup to a 40-person company serving 700+ agencies), Swiss EV infrastructure platform and another Chicago based Short-term Furnishing company. Every developer we place is a pre-vetted senior developer, fully aligned to your project, and works in your timezone with a minimum 4-hour overlap. We run on agile sprints - biweekly demos, daily standups, transparent progress reporting. Your project kicks off within 7 to 14 days of signing. You own 100% of the code and product. Services: Web app development Mobile app development (iOS & Android) AI app development Cloud app development (AWS) Legacy modernisation UI/UX design Engagement Models: Software Development Outsourcing (full project delivery) Dedicated Development Team Staff Augmentation Core Stack: React, Next.js, Node.js, React Native, OpenAI, Anthropic, Gemini, Supabase, Vercel, LangChain, Vercel AI SDK, AWS Bedrock, Stripe, Figma, AWS Industries Served: Travel & Hospitality, Electric Vehicles, Real Estate, Renewable Energy, Education, Insurance
2 works in Web Application
Located in 95131, United States
From €10,000 for Web Application
Worked in Travel & Leisure (+2)
Speaks English
11-50 members
FuzionDev LLC
5
(12 reviews)
AI & SaaS Development | Vibe Coding & App Rescue | DevOps & Cloud | Web & Mobile Apps
Highly recommended
Have a product to launch, an AI-built prototype to finish, or an application that needs a stronger technical foundation? FuzionDev LLC helps startups and growing businesses take the next step. We build AI-powered SaaS products, custom web and mobile apps, AI agents, chatbots, and workflow automations. OpenAI, Claude, and Gemini integrations connect AI capabilities with everyday business needs. Through Vibe Coding & AI-Built App Rescue, we improve applications created with Claude Code, OpenAI Codex, Cursor, Lovable, Replit, and Bolt. We review code, fix bugs, strengthen authentication and payment flows, and prepare products for real users. DevOps and cloud engineering support the application beyond launch: AWS infrastructure, CI/CD pipelines, Docker, Kubernetes, testing, monitoring, backups, and ongoing improvements. FuzionDev LLC is a US-registered software development company serving clients worldwide. From discovery and UI/UX to deployment and support, we focus on clear communication and practical next steps. Tell us what you’re building, what needs fixing, and your timeline.
12 works in Web Application
Located in Sheridan, United States
From €3,000 for Web Application
Worked in Software & Computer Services (+9)
Speaks English
11-50 members

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