Top Tech Startups in Spain in 2026

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.

One platform. One API. All Channels - from Pure-Play Webstore to Omnichannel infrastructure.

PriceLabs (chicagobusiness.com/innovators/what-if-you-could-adjust-prices-meet-demand) is a cloud-based software for vacation and short-term rentals to help them dynamically manage prices just the way large hotels and airlines do! Our mission is to help small businesses in the travel and tourism industry by giving them access to advanced analytical systems that are often restricted to large companies.

Madison Reed (madison-reed.com) is an e-commerce start-up with a team of 180+ rock stars in San Francisco. We’re revolutionizing the $50B hair care market using technology (web, mobile, tablet, social) to radically innovate the user experience and business model. Madison Reed is headquartered in SF and backed by top-tier venture capital firms Norwest VP, True Ventures, Maveron and Shea Ventures.

Softr is the easiest way to build custom apps and portals from Airtable, in minutes. #nocode required. With Softr, you can build client portals, internal tools, marketplaces, online communities, resource directories, websites and more. Our mission is to democratize the engineering genius. Start for free - softr.io

At the intersection of banking and technology, Cross River is on a mission to build the infrastructure that propels access, inclusion and the democratization of financial services. Our company enables our clients to deliver responsible financial solutions that empower consumers anytime, everywhere. We are backed by Andreessen Horowitz, Battery Ventures, Ribbit Capital; our partners include companies such as Affirm, Stripe, Coinbase, and many others. At a quick glance, we were founded in 2008, have over 800 employees, and 80+ partnerships and have originated over $93 Billion in loans. We specialize in Marketplace Lending, Payments, and our Compliance framework. Our approach focuses on: -Compliance, our regulatory and compliance standards are strategic assets, at the heart of everything we do. -Technology, through constant innovation, we provide streamlined solutions that make our clients' vision come to life -Leadership, we put our trusted experience to work on behalf of our clients, so they can lead the industry forward. As an innovative company we are also brining Crypto to the next 1B users by offering, Crypto backed lending, fiat on/off ramps, and Custody buy, sell and hold. Cross River offers amongst the best benefits in the industry: Family Medical Plans with minimal outlay to the employee, generous time off, matching 401K, pre-IPO equity, flexible and hybrid work culture, a shuttle from Manhattan to the office, and many more perks and amenities.

Lokafy connects travellers with locals, providing an experience that's like having a friend show you around their home city. We are a Toronto-based startup that has organized tours in over 250 cities around the world. Our mission is to change travel, to make it more about the people we meet, not just the places we see.

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.

MOLTEN is a cloud platform that streamlines core operations of media and entertainment enterprises. MOLTEN digitizes and transforms rights, content, and licensing operations across enterprises, empowering teams with real-time insight and automation tools to do more, accelerating deal-making and content monetization worldwide. MOLTEN offers multiple integrated cloud-based services to power back-end operations for media and entertainment enterprises, which include content rights, storage, delivery and licensing management.

Upbound is the industry’s first platform for building internal cloud platforms. Designed around control planes, Upbound offers a new methodology for building an internal cloud platform, purpose-built for your organization. Customers can quickly build, deploy, manage, secure, and use their platforms all from a single point of control.