Top Tech Startups in Barcelona, Spain in 2026

At pubGENIUS we build software that helps great ideas become real products. We’re a US-based development company founded by a former Microsoft engineer, and we’ve been remote since day one. Our team is fully distributed across 10 countries from the U.S. to Europe, Asia, and Africa and we believe that where you live should never limit where you can build. What sets us apart? Our standards: -We value deep knowledge, strong engineering skills, and clear communication. Our hiring process is intentionally tough we select just 1 out of every 1,200 applicants to make sure we build a team that can consistently deliver great work, fast. What unites us is our passion for technology, our love for clean code, and our commitment to helping startups bring their visions to life. Since 2018, we’ve worked on 80+ projects, supported founders from day zero, and helped raise over $15 million in funding for early-stage startups. Whether you’re building your MVP or scaling your product, we’re here to make it happen with speed, quality, and the care of a real partner. What We Do: - We have a solid and proven track record building: - Web applications:SaaS platforms, e-commerce, healthcare, fintech, e-learning, CRMs, and more. - Mobile apps: high-performing apps on iOS and Android using React Native (plus native integrations). - Fractional CTO: Strategic support to help you choose the right tech stack, set up scalable architecture, and move faster without hiring full-time. Who We Work With: Whether you're in healthcare, e-commerce, education, AI, fintech, or something entirely new, our sharp-minded engineers can tackle any complexity. We don’t limit ourselves by industry we’re here to solve real problems with clean, scalable code. How We Think: We’re trying staying ahead. Every decision we make from architecture to stack selection is designed to ensure that the products we build will stand the test of time and evolve with your business.

Jampp builds a suite of growth products that all growing on-demand businesses can use to accelerate growth across the customer lifecycle, from acquisition, to engagement and retention. A demand-side platform (DSP) at heart, Jampp unlocks programmatic advertising for some of the biggest names in mobile (like Uber, Rappi, iFood, & Postmates to name a few). We solve the most complex and large-scale technological challenges on mobile advertising today. Jampp handles over 50 billion ad requests and process 100 terabytes a day, across three global data centers. We rely on real-time machine learning models (with billions of features) that give us predictions in less than 1ms.

Gr4vy is a cloud payments company that takes the complexity out of running your own payments infrastructure by doing it for you. We can deploy services on our cloud across the globe, deploying on the edge close to your customers. We can even allow you to host our services on your own networks. Centralized reporting, monitoring, and management mean all parts of your business will benefit from a single streamlined system, saving you time and money.

We help our clients with the first part of the sales process by finding contacts and reaching out to their ideal customer profiles to bring new opportunities into the top of their sales funnel.

We’re HappyScribe, 100% bootstrapped AI company based in Barcelona. ☀️ We built one of the web’s most accurate multilingual transcription platforms, trusted by hundreds of thousands of users each month. ✨ What we deliver • AI Notetaker — automatic meeting notes, summaries, action points & transcripts • AI Transcription — fast, accurate, and ready for editing • AI Subtitles — clean, well-timed captions for global audiences • Human Transcription — perfect quality for research, media, and production • Human Subtitling — broadcast-ready quality for any platform • 120+ languages supported across all workflows Now we’re taking that same tech and expertise to a bigger frontier: turning conversations into intelligence. We’re building the layer where meetings become memory, ideas become action, and teams work with more clarity and speed. We are a team of ~20 people, close-knit and pragmatic. Some of us are scaling a mature, revenue-generating platform. Others are prototyping new products that push the limits of speech and agentic AI. We move fast but think long-term.

Qase.io is a modern, cloud-based test management platform designed to help teams boost productivity and bring order to their software testing process. We’re shaping the future of software quality — fast, smart, and with a passionate team that loves what we do. At Qase, every person makes an impact. Our AI-powered platform is transforming how engineering teams test, collaborate, and ship high-quality software. Trusted by tens of thousands of users worldwide and loved by customers (NPS 43, CSAT 99), Qase is growing rapidly with efficiency at its core. With our product-led approach attracting enterprise clients and redefining the industry standard, there’s never been a better time to join the journey. Our platform offers everything you need to manage testing in one place — from organizing cases to running plans and collaborating as a team. Test Case Management Organize your test cases into structured, logical groups with test suites. Define severity, priority, preconditions, postconditions, and detailed steps — everything your team needs for complete and consistent testing documentation. Test Plans & Runs Create test plans and execute them efficiently. Our intuitive smart wizard guides you through each step, helping you verify all cases at once. The built-in time tracker provides detailed insights into time spent on each test case. Team Collaboration Invite teammates and manage your testing process together — from creating test documentation to running tests and managing plans. Qase empowers teams to work in sync and achieve higher software quality, faster.

We're Atlast, a Barcelona-based AI startup on a mission to delete the boring half of recruiting. Meet the team: Talia hunts down candidates like a detective, Stala runs scheduling with zero tolerance for calendar links, and Atlas keeps the whole operation calm. (Yes, they're AI agents. Yes, they have opinions.) We don't replace recruiters, we free them from the grind. You'd join a tight founding team, ship real things fast, and learn more in a few months than most people do in a year.

At Checkatrade, we’re building something bigger than a trade directory. We're creating the go-to platform for home improvement — a place where homeowners can find the right tradesperson, and trades can find the right work. Whether it’s fixing a leaky tap or planning a full renovation, we help make sure every job is a job done right. Hiring a tradesperson can feel high-risk. People aren’t always sure if the price is fair, the reviews are real, or what happens if things go wrong. At the same time, tradespeople often feel like they’re paying into platforms that don’t offer enough in return. We’re here to change that — for both sides. That’s why we’ve evolved Checkatrade from a listing site into a marketplace and mobile app that brings everything together. Homeowners can post a job, reach multiple checked trades at once, chat in-app, book in a time, and even pay securely. Our Guarantee covers jobs booked through Checkatrade, offering up to £1,000 of protection (T&Cs apply). For tradespeople, we’re building tools to save time, grow their business, and build a reputation that lasts. From quote-to-invoice job flow to profile enhancements and AI job suggestions — we're backing the people who turn up, do great work, and care about the end result. We’ve got big plans. That means growing our platform, evolving our products, and shaping new ways to support better work — from inspiration to installation. And we’re doing it with a team that’s proactive, dependable, and genuinely cares about getting things right. If you believe pride in your work still matters, you’ll feel right at home here. Join us — and help build the platform where every job’s a job done right.

Vision: At Living Stones Foundation, we envision a world where every individual and community thrives with hope, dignity, and opportunity. Our vision is rooted in the belief that through sustainable initiatives, collaborative efforts, and a commitment to positive change, we can create a global landscape where socio-economic disparities diminish, and the inherent potential of every person is realized. Mission: Our mission at Living Stones Foundation is to empower communities, inspire change, and foster innovation. We strive to be a catalyst for positive transformation by actively engaging in sustainable projects, strategic partnerships, and leveraging our diverse expertise. Through a holistic approach that transcends conventional boundaries, we aim to uplift and empower individuals, organizations, and churches, making a lasting impact on the fabric of society.