Top Tech Startups in Barcelona, Spain in 2027

Constructor.io is the only search and product discovery platform tailor-made for enterprise eCommerce where conversions matter. Constructor's cloud-based solutions use natural language processing, machine learning-enhanced results ranking, and collaborative personalization to deliver powerful user experiences across all facets of product discovery -- from search to browse, recommendations, and autosuggest. We optimize revenue before relevance. This has allowed us to generate consistent $10M+ lifts for our customers, which include some of the biggest brands in retail like Sephora, Backcountry, Tommy John, Lego and Bonobos. Constructor is a U.S.-based company that was founded in 2015 by Eli Finkelshteyn and Dan McCormick.

Glovo is a mobile application operating in Spain since March 2015 that allows customers to outsource their daily errands to one of our delivery people in order to make life less cumbersome. Users can send or obtain any product in less than 60 minutes. The app connects users with independent couriers called glovers that acquire products from any restaurant, laundry or store in the city and also deliver urgent packages. In other words, Glovo is the new personal assistant available to everyone! Once the order is made, the user can interact with the glover assigned and follow his GPS position in real time. We developed a payment system that is easy and convenient – the client simply enters his credit card details when registering for the app and only gets charged once the product arrives at his doorsteps. In less than 8 months, we have launched in three Spanish cities and are already planning our international expansion. Get to know more about us at glovoapp.com

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.

Antai Ventures is a Barcelona-based venture studio with presence across Southern Europe and Latam. Since 2012 we have co-founded +25 companies including Glovo, Wallapop, Nemuru, PlatanoMelon and Vitaance. Our ventures have raised more than $1.5B in funding, have generated more than $3B in shareholders value and currently employ more than 3.000 people. At Antai, we partner-up and invest in the best co-founders to build global companies willing to disrupt multi-billion dollar industries. In the last 10 years, we have gained experience in a variety of business models (E-Commerces/DNVBs, B2B SaaS, Marketplaces) operating in a wide range of industries including Edtech, Grocery, Healthtech, Fintech, Insurtech, Proptech, Autotech among others.

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.

Hello! We're a fully remote team of ∼60 people on a mission to help every creator earn a living. We do that by supporting hundreds of brands in their effort to find local creators around the globe, partner with them and monitor their performance. In the long term, we'll be the control centre creators use to earn a living. With nearly 2000 customers partnering with +10k creators a month, we are well on our way to helping a million creators get paid every single year. ? About our products: Modash's flagship product is discovery and analysis. We allow brands to find influencers all over the world, who reach real, targeted audiences and create impactful, relevant content. We list every creator on Instagram, Tiktok and Youtube. We also offer a monitoring product, which collects content for brands and measures it's performance. Imagine you have 1000 creators globally publishing every day - it's a real pain to keep track of what's happening. In Modash, it's the click of a button. Connecting these two powerful tools are lightweight relationship management functionality so teams can work together to scale their creator partnerships. People love this, because it gets them out of sheets and help keeps things updated in a single place. Some of our up-and-coming projects are in stealth mode. They leverage the power of data, the millions of relationships we're fostering and solve key pay-points related to partnerships and finance. Ask us about them in our intro call!

Thor’s Hall is building a performance-based network for creators, publishers, marketers and online communities. We help partners monetize their audiences without having to build the technical infrastructure themselves. Thor’s Hall handles dedicated landing pages, campaign tracking, reporting and partner management while our partners focus on bringing quality traffic through the channels they already understand. Our model is simple: if a partnership generates revenue, everyone involved shares in the results. We currently focus on online gaming and iGaming, with the goal of building a wider network of creators, publishers and growth partners across multiple markets. We are still early, which means the people joining now have the opportunity to help shape how Thor’s Hall grows, test new acquisition strategies and potentially develop long-term partnerships as the network expands.

RZLT is the leading Web3, Crypto & AI Native Marketing Agency. We grow the most disruptive brands in the world. We are a diverse team of 35+ innovators from 10 different countries, speaking 8 languages, united by an unstoppable drive for passion, and disruption. If you're eager to dive into the Web3 landscape and thrive, RZLT is the place for you. Join us and be a part of shaping the future of marketing. Check our job openings here: careers-page.com/rzlt-2?mode=preview