Software Development Companies in San Francisco

If you’re a non-technical founder, chances are you’ve been burned by flaky devs, vague timelines, or code that doesn’t match the prototypes. That’s exactly why we built a model designed for trust.

At Designli, we pair non-technical software founders with full-time, founder-aligned product teams. Software engineers, designers and product owners who don’t just speak code, they speak human. We guide you through every step with clarity, structure, and care.

How it works, and what we can build:

Starting from Scratch?

We turn your idea into a clickable, interactive prototype with a feature roadmap and estimates so you can align co-founders, test the market, or pitch investors before writing a single line of code. No dev required (yet).

Recovering from a Bad Build?

Our team audits your codebase, cleans up what’s broken, and builds a plan for a second launch you can trust. We don't start over, we step in and make it better, fast.

Scaling What You’ve Built?

We help you scale with purpose. That means feature roadmaps tied to real metrics and user insights, not gut instinct or guesswork.

Each path begins with a dedicated product team assigned full-time to your project. Whether you need a prototype, a clean codebase, or a smarter scaling strategy, we’ll guide you there with clarity, speed, and craftsmanship you’ll be proud of.

Explore more and view our portfolio at https://designli.co

At Synergy Labs, we believe that building a great app is more than just writing code—it’s about creating a digital experience that elevates your brand. Founded over six years ago, we’ve grown into a boutique development studio delivering over 50 custom projects for clients like Forbes Council, Minnect, and Clapper.

Our journey started when our founder, Sardor, faced the same challenges as our clients: balancing quality with cost-effective development. That experience inspired us to create a smarter way to build apps—one that bridges the gap between the agility of freelancers and the bureaucracy of large firms. Our collaborative approach ensures you’re informed and in control at every step, with a dedicated team working as an extension of your business.

What Sets Us Apart:

• Fixed Cost: One upfront price covers your project from start to finish—no surprises, just clarity and peace of mind.

• Dedicated Team: A single point of contact and a dedicated developer focus solely on your project, ensuring a seamless and personalized collaboration.

• Your Build, Your Ownership: Everything we create—from the code to the hosting—is entirely yours, offering long-term scalability and control.

Our expertise spans custom mobile apps for iOS and Android, as well as web applications, all designed with your unique vision in mind. Whether you need a membership app like Forbes Council’s, an expert marketplace like Minnect’s, or a dynamic social platform like Clapper’s, we’re here to help you stand out.

Let’s connect and explore how we can bring your vision to life or check us out at: www.synergylabs.co

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.

Realweb Tech is a software consultancy that provides advanced AI, custom app, web, and IoT solutions to help midsize and enterprise businesses grow. Since 2018, our skilled and diverse team has focused on building scalable, secure, and future-ready technologies that improve operations and boost customer engagement, even in highly regulated and complex industries.

Mobifyze is your trusted partner for custom mobile and web app development.

We help startups, small businesses, and growing brands bring their ideas to life with sleek, user-friendly, and scalable applications. From the first sketch to launch day (and beyond), our team of expert developers and designers is dedicated to building digital products that solve real problems and deliver real results.

✨ Custom App Development

🚀 End-to-End Solutions

🤝 Innovation, Collaboration, Growth

Let’s turn your vision into the next big thing — one line of code at a time.

We are Fulminous Software, a skilled web and mobile app development company with a proven history of creating popular and profitable apps. We're known for our knack for enhancing existing apps and websites to make them even better, ensuring people keep downloading and enjoying them. Our dedicated team is here to turn your ideas into reality.

The company’s biggest strength is its team which I a mix of most ingenious and focused individuals who are adroit in whatever they do. They believe in delivering flawless and reliable solutions to clients that match business needs and drive business growth. We are looking for strategic partnerships from around the globe. If you are interested please contact us today.

Client's Feedback About US:

https://clutch.co/profile/fulminous-software-private#highlights

https://www.bark.com/en/in/company/fulminous-software-private-limited/9AKJO/

Our Key services:

* Custom Software development

* Mobile App Development (Android App, iPhone App, Cross-Platform App)

* Custom Game Development (AR, VR, iOS, Android, NFT, Metaverse, 2D, 3D)

* Salesforce Development (Lightning, Implementation, Consulting)

* Web Development

* Mobile Game Development

* Desktop Game Development

* Xamarin App Development

* Wearable Devices App Development

* Enterprise App Development

* CRM & ERP Development

* Digital Marketing

World’s #1 Rated & Reviewed App & Web Development Partner, Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. Headquartered in London, UK, with a strong presence in India and 11 global branches, we combine global reach with deep technical expertise.

Our 320+ specialists have successfully delivered 1900+ projects over the last 10+ years, helping businesses scale with mobile app development, website design & development, enterprise software solutions, AI-powered digital marketing, branding, and social media management.

We proudly serve 30+ industries including retail, e-commerce, healthcare, fintech, education, travel, logistics, luxury, and more.

Probey Services is rated as the #1 Tech Partner globally on Clutch, GoodFirms, and Trustpilot, we stand out for our system-driven execution, advanced tech stack, and client-first approach.

Our Services:

We deliver end-to-end digital solutions that don’t just work, they win.

• Mobile Apps – iOS & Android (React Native, Flutter, Kotlin, Swift, Java).
• Websites – Fast, stunning, conversion-driven (Shopify, WordPress, Magento, Joomla, Wix, Umbraco).
• Custom Software – ERP, CRM, SaaS, and cloud platforms (React, Node.js, Angular, .NET, Python, PHP, Ruby, Java).
• Digital Marketing – AI-powered SEO, PPC, and performance campaigns (SEMrush, Ahrefs, Moz, Google Ads, Analytics).
• Branding – Logos, identity kits, merchandise, collaterals (Figma, Adobe Suite, CorelDRAW).
• Social Media – Strategy, UGC/CGC, influencer collabs (Instagram, LinkedIn, YouTube, Pinterest).

Awards & Recognition:

• Proudly recognized worldwide:
• Top Mobile App Development Company – Clutch (2025)
• Best Web & Design Agency – DesignRush (2024)
• Global Leader – GoodFirms (2024)
• Top 10 IT Companies – G2 (2024)
• Excellence in Digital Innovation – AppFutura (2024)
• Clutch Global & Champion Badge (2023 & 2024)

Linnify is an awarded global technology partner, founded in 2016, with offices in Europe and the U.S.

We empower visionary companies to accelerate digital product development. Faster, smarter, and more reliable than thought possible.

From growing startups to established enterprises, we help turn bold ideas into scalable, user-centered digital solutions that drive measurable business impact.

Our cross-functional teams deliver end-to-end capabilities in:

- product strategy and validation

- UX/UI design

- custom software development (web and mobile)

- AI and machine learning development

- data engineering

- cloud-native solutions

- XR (AR/VR) applications

- team augmentation

Our validation-driven development approach ensures every product is aligned with actual market needs, minimizing risk while accelerating time-to-market.

With a proven track record of building 80+ digital products across industries such as healthcare, logistics, education, automotive, and pharma, Linnify is present through strategic partnerships in major tech hubs like Austin, Berlin, and London.

Our commitment to quality has earned us global recognition, including FT1000 ranking, Clutch Top 100, and ISO 27001 certification.

Whether you’re seeking an AI development partner, looking to validate a product idea, or scaling your development capabilities, Linnify delivers with agility, transparency, and lasting impact through dedicated product teams.

Let’s simplify life through innovation. Together.

Formation is a virtual fellowship program for software engineers who seek impactful roles and career growth at the most innovative tech companies in the industry.

Our unparalleled outcomes are the result of innovative adaptive learning technology, comprehensive curriculum of engineering principles, and commitment to building a diverse engineering community.

Strategic Software Development: professional, high-quality, easy-to- use and evolve software.

Specialities

* analysis, architecture, design, and review of codebases

* coaching of software engineers

* project management for software projects

* consulting for software process improvement

5cubeLabs provides world-class machine learning development, from building scalable pipelines, to building models with state-of-the-art performace, to deploying bleeding-edge technologies and techniques

Jonajo Consulting is a global digital strategy and software development firm providing AR-powered solutions that drive business growth for clients around the world. Combining the wealth of experience and specialized skills of our team, we offer Web and Mobile App Development, UX/UI Design, and Talent Management services. We value and protect our partners’ interests and ensure their long-term success through innovation and technology. Share your vision with us and we will help you create it!