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 ApplicationLocated in Cherkasy, Ukraine (+3)From €10,000 for Web ApplicationWorked in Hospitals & Healthcare (+20)Speaks English, Ukrainian51-200 membersPlavno
5(16 reviews)AI-First Software Company: Secure Agents, Voice Assistants, and Scalable Cloud.
Top awardedPlavno 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.io23 works in Web ApplicationLocated in Alexandria, United States (+2)From €10,000 for Web ApplicationWorked in Banking & Financials (+19)Speaks English, French(+2)51-200 membersDesignli
5(16 reviews)Build software people actually pay for.
Top awardedDesignli 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 ApplicationLocated in San Francisco, United States (+2)Budget on requestWorked in Banking & Financials (+9)Speaks English51-200 membersRoboto Studio
(0 review)The best Next.js and Sanity agency
Top awardedRoboto 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 ApplicationLocated in San Francisco, United StatesFrom €20,000 for Web ApplicationWorked in Banking & Financials (+5)Speaks English11-50 membersHalo Lab
5(12 reviews)Transforming your product idea into reality through custom design-driven development.
Highly recommendedTop awardedHalo 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 ApplicationLocated in Dubai, United Arab Emirates (+4)From €10,000 for Web ApplicationWorked in Travel & Leisure (+18)Speaks English51-200 membersInstinctools
5(10 reviews)Your AI-powered Engineering Partner
Top awardedMeet *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 ApplicationLocated in Potomac, United States (+4)From €10,000 for Web ApplicationWorked in Construction (+10)Speaks English, German(+1)201-500 membersCeladonsoft
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 ApplicationLocated in Tuckahoe, United States (+3)From €10,000 for Web ApplicationWorked in Education (+23)Speaks English, German(+2)51-200 membersSWC 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.comLooking for work in Web ApplicationLocated in Greater London, United Kingdom (+5)Budget on requestWorked in Technology Hardware & Equipment (+14)Speaks English, Chinese(+8)11-50 membersSpiral 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 612+ projects shipped. 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.Looking for work in Web ApplicationLocated in San Francisco, United StatesFrom €1,000 for Web ApplicationWorked in Restaurants (+2)Speaks English51-200 membersTacpoint, 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 ApplicationLocated in San Francisco, United StatesFrom €10,000 for Web ApplicationWorked in Banking & FinancialsSpeaks English11-50 membersMTechZilla
5(8 reviews)Software Development Company for Product & Engineering Teams
Highly recommendedMTechZilla 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, Insurance2 works in Web ApplicationLocated in 95131, United StatesFrom €10,000 for Web ApplicationWorked in Travel & Leisure (+2)Speaks English11-50 membersTransformed Design Inc.
(0 review)Strategic Web Design, Branding & Digital Growth
Transformed Design Inc. is a branding, web design, and digital strategy agency that helps businesses build strong and scalable online foundations. We specialize in WordPress website design, brand identity development, SEO optimization, and digital growth solutions that help companies stand out in competitive markets. Our approach blends creative design with business strategy. Every project we build is designed not only to look professional but also to function as a long-term business asset that attracts customers, builds credibility, and supports sustainable growth. We work with entrepreneurs, startups, and growing businesses to develop websites and brand systems that communicate clearly and convert visitors into leads. From custom WordPress development and responsive web design to brand identity and search optimization, our goal is to create digital platforms that evolve alongside your business. At Transformed Design Inc., we believe great design should serve a purpose—helping businesses establish trust, reach the right audience, and unlock their full potential online.3 works in Web ApplicationLocated in Oceanside, United StatesFrom €1,000 for Web ApplicationWorked in Hospitals & Healthcare (+6)Speaks English11-50 membersAmericas Web Designers
(0 review)Digital Excellence Vision to Legacy
Americas Web Designers is a team of creative experts having experience in crafting timeless and unique digital strategies that catapult you to new heights of growth. From ideation to identity, we help you transform your brand into a powerhouse. We deliver guaranteed results – with customer satisfaction at the top. Get recognized by the best branding agency in United state.Looking for work in Web ApplicationLocated in San Francisco, United StatesFrom €5,000 for Web ApplicationWorked in OthersSpeaks English51-200 membersNea Studio
5(2 reviews)Shaping the future through design, motion & tech.
Nea Studio is an independent creative and design studio from Medellín, working with ambitious companies around the world. Turning ideas into brands, stories and experiences people want to be part of. We believe the most interesting brands don't just communicate. They create worlds, shape culture and move people. Shaping the future through design, motion & tech. From strategy and creative direction to design, animation, production and technology, we bring together the right people and disciplines to make those ideas real.1 work in Web ApplicationLocated in Medellin, ColombiaFrom €5,000 for Web ApplicationWorked in Clothing & Accessories (+4)Speaks English, Spanish11-50 memberscro.media
5(2 reviews)Make that "Add To Cart" happen... More often.
RecommendedTop awardedCRO.Media Shopify Plus CRO Agency CRO.Media, Shopify Plus agency, specializing in Shopify Conversion Rate Optimization (CRO), Shopify website diagnostics, Shopify Search Engine Optimization (SEO), Shopify Development. Our mission is to drive impactful results that elevate conversions and sales through expert audits, custom development solutions, and strategic SEO approaches tailored specifically for Shopify stores. ## Shopify CRO & SEO Experts Our team of specialists covers every angle of your store's performance, ensuring an optimal user experience and robust SEO foundation. With expertise spanning SEO, UX/UI, Shopify development, and CRO, we deliver our signature Shopify CRO Audita detailed, 25+ page report provided within just 36 hours, backed by a 100% satisfaction guarantee. This report provides actionable insights for immediate CRO improvements and long-term growth. ## Tailored Shopify Solutions At CRO.Media, we believe in a streamlined, results-focused approach tailored to your unique business needs. Our core services include: - Shopify CRO Audit / Shopify Website Diagnostics: An in-depth analysis of your stores conversion performance, complete with actionable recommendations to enhance usability, design, and conversion rates, helping you maximize ROI. - Shopify SEO Audit: A targeted approach to uncover and resolve SEO weaknesses, driving organic traffic to elevate your stores visibility and search rankings. - Custom Shopify Development: High-quality, bespoke development services backed by our skilled Shopify team, with daily updates and robust quality assurance, ensuring your store performs optimally and aligns with your business goals. ## Our Commitment We're dedicated to providing transparent, results-oriented services that empower your store's success. Through conversion-focused design, precise SEO audits, and custom development, we optimize every aspect of the Shopify experience.1 work in Web ApplicationLocated in San Francisco, United StatesBudget on requestWorked in RetailSpeaks English, Armenian(+2)11-50 membersChudovo OÜ
5(22 reviews)Complex Systems Implementation
Highly recommendedTop awardedChudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions. Our teams follow best development practices and methodologies and apply their experience in such industries as healthcare, finance, e-commerce, logistics, telecommunications, and others. In our portfolio, we have over 190 successfully implemented web, mobile, desktop, cloud, embedded, and AI projects. With our commitment to innovation, we bring together cutting-edge technologies, visionary strategies, and creative minds to breathe life into your visions and ideas.31 works in Web ApplicationLocated in Castrop-Rauxel, Germany (+4)From €5,000 for Web ApplicationWorked in Hospitals & Healthcare (+19)Speaks English, German(+2)51-200 membersFuzionDev LLC
5(10 reviews)Custom AI, Web & Mobile Software Built to Scale
Highly recommendedFuzionDev LLC is a custom software development company helping startups, growing businesses, and established organizations transform ideas into secure, scalable, and high-performing digital products. We specialize in artificial intelligence solutions, web and mobile application development, SaaS platforms, workflow automation, API integrations, cloud infrastructure, and UI/UX design. Our team supports the complete product lifecycle—from discovery, strategy, and architecture to development, testing, deployment, optimization, and ongoing maintenance. We build AI agents, chatbots, RAG systems, marketplaces, booking platforms, CRM and ERP solutions, customer portals, dashboards, e-commerce systems, and other custom business applications. Our core technologies include Next.js, Node.js, TypeScript, Python, React Native, PostgreSQL, AWS, Docker, OpenAI, Claude, and Gemini. Clients choose FuzionDev LLC for clear communication, transparent delivery, practical technical guidance, and dependable long-term support. Whether you are validating an MVP, modernizing an existing platform, automating business processes, or launching an AI-powered product, we turn your goals into reliable software designed to deliver measurable value and support future growth.10 works in Web ApplicationLocated in Sheridan, United StatesFrom €3,000 for Web ApplicationWorked in E-commerce (+9)Speaks English11-50 membersWebisoft
4.9(15 reviews)Cutting-edge software development: blockchain, AI, ERP, and custom software.
Highly recommendedTop awardedWebisoft is a software development company based in Montreal (Quebec), with a second office in Miami (Florida). We specialize in custom software development, artificial intelligence, and Odoo ERP implementation, with complementary expertise in blockchain; we help both startups and established companies build scalable products. We understand the challenges entrepreneurs face when seeking top-tier developers to bring their visionary ideas to life. That's why we invite you to put us to the test before entrusting us with your project. If you believe your concept has the potential to revolutionize the market, let us demonstrate our expertise by transforming your dreams into an innovative digital product. To shape the future of digital experiences, make Webisoft your trusted partner.6 works in Web ApplicationLocated in Montreal, Canada (+1)From €20,000 for Web ApplicationWorked in Video games (+18)Speaks French, English11-50 membersDebut Infotech
5(9 reviews)AI-Augmented Product Engineering Company
Highly recommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplines12 works in Web ApplicationLocated in Chandigarh, India (+2)From €10,000 for Web ApplicationWorked in Others (+11)Speaks English51-200 membersSDLC Corp
4.9(50 reviews)Your Technology Partner
Highly recommendedSDLC Corp is a full-spectrum software development and technology company founded in 2015, headquartered in Illinois, USA. With 600+ completed projects and 400+ professionals, we build, modernize, and scale secure digital systems from large enterprises managing complex technology programs to growing mid-sized companies and startups. SDLC Corp covers the complete Software Development lifecycle from the first line of code to long-term engineering continuity through dedicated practice teams with deep, niche-specific expertise across: • Custom software development • Web and mobile application development • Enterprise AI and machine learning • Odoo ERP and Salesforce CRM implementation • Game development • Cloud and DevOps • UI/UX design • Digital transformation consulting Every service is delivered by dedicated practice teams with deep and niche-specific expertise. We operate across the USA, UK, UAE, India, Australia, and Canada, supported by engineers, solution architects, ERP consultants, AI specialists, Unreal Engine and Unity game developers, DevOps engineers, QA professionals, and technology consultants. For enterprises, we handle large-scale software programs, clients like Transworld, Kiss USA, Equity Builders, Wadiaa, Orange Telecom, Huawei, ADTS, Airavat, Zilch and much more. Beyond client work, SDLC Corp builds and ships its own software DAN for document processing, Pulastya AI for voice automation, Praxis AI for institute management, Foresite for business intelligence, and 20+ Odoo connectors validating our engineering standards against real production demands. We deliver through custom development, turnkey products, white-label solutions, dedicated teams, staff augmentation, and long-term maintenance. Clients retain full ownership of source code and IP. SDLC Corp supports scalable architecture, secure development, integration readiness, and post-launch engineering continuity.10 works in Web ApplicationLocated in Batavia, United States (+3)From €20,000 for Web ApplicationWorked in Video games (+20)Speaks English501-1000 members