Top Tech Startups in Dublin, Ireland in 2026

We build best-in-class WordPress and Drupal sites with agile workflows, scalable infrastructure, and a lightning-fast content delivery network. We run your sites on the fastest WebOps Platform on the planet. This includes our unrivaled speed, uptime, and scalability make our high-performance WebOps platform the best place to host WordPress and Drupal sites. We are the only hosting platform to include fully managed and free HTTPS certificates, automated backups, and one-click updates for all WebOps platform plans.

Klaviyo (NYSE: KVYO) is the B2C CRM. Powered by its built-in data platform and AI, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps over 183,000 brands like Mattel, Glossier, Daily Harvest, and Liquid Death deliver 1:1 experiences at scale, improve efficiency, and drive revenue.

MongoDB is the leading modern, general purpose database platform, designed to unleash the power of software and data for developers and the applications they build. Headquartered in New York, MongoDB has more than 15,000 customers over 100 countries. The MongoDB database platform has been downloaded over 60 million times and there have been more than one million MongoDB University registrations.

LILT is a language translation services and technology company. We're building the next generation of localization, making it possible for every organization to communicate with their customers in the language of their choice through LILT's high-quality, scalable, and affordable translation services. We recruit the world's best human translators and equip them with our software, allowing them to translate better and faster than ever. By combining human expertise and machine efficiency in a complete enterprise localization solution, we can deliver technology-enabled translation services to our customers. Lilt is backed by some of the world's leading investors including Sequoia Capital, Intel Capital, and Redpoint. Our customers include some of the largest Fortune 500 companies in the world who rely on Lilt every day to provide more personal customer experiences in 300+ languages. Our team is headquartered in the Bay Area with additional hubs in Indianapolis, Washington DC, Berlin, Dublin, and the UK.

CarGurus (cargurus.com) is an online auto community that helps consumers research and shop for cars. Our free listings search tool analyzes prices of millions of available listings on the fly, so you can quickly find the best local deals from the best rated dealers. CarGurus was founded by Langley Steinert, co-founder and former Chairman of TripAdvisor.

Squarespace makes beautiful products to help people with creative ideas succeed. Our platform empowers millions of people — from individuals and local artists to entrepreneurs shaping the world’s most iconic businesses — to share their stories and create an impactful, stylish, and easy-to-manage online presence.

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.

At TrueLayer, we’re building a global open banking platform that’s changing how money moves and so much more. We make payments and refunds instant, account data accessible and verification seamless — all so innovators in every industry can build better financial experiences for their users. To date, we’ve raised $270 million from world-renowned investors including Stripe, Tiger Global, Addition and Tencent. We’ve got offices in London, Milan, and Dublin And we’re trusted by industry leaders like Revolut, Cazoo and Trading 212… though we’re not stopping here. Our vision is a financial system that works for everyone. To make that happen, we’re creating original and innovative products that will remove the friction from finance for good. We’re seriously scaling our infrastructure, we’re entering new territories all the time, we’re cornering a whole new category — and we’d like your help to get us there. Mission: We're building intelligent infrastructure that puts fintech at people’s fingertips. Open banking ignited a new generation of financial products. Exposing complex infrastructure as simple code, giving consumers more control over their financial lives, and injecting competition into sectors that had stood still for too long. The thing is, it’s just getting started... So we’ve decided to accelerate it. Opening things up even further. By crafting products that unlock compelling use cases, allowing any business to integrate finance into their applications. Encouraging new connections, collaborations, and commercial models, introducing open banking into every industry. We are TrueLayer. We’re opening up finance for everyone.

NextRoll is a leading marketing technology company that empowers businesses to drive sustainable growth while building trusted connections with their audiences. Built on nearly two decades of AI and data expertise, NextRoll delivers its solutions through AdRoll, its flagship brand and connected advertising platform. The AdRoll platform brings together two powerful offerings: the AdRoll product, which helps brands generate awareness, deepen engagement, and drive measurable revenue through AI-powered multi-channel campaigns; and AdRoll ABM, a full-funnel account-based marketing product that unifies buyer insights, predictive AI, and multi-touch advertising to accelerate pipeline and revenue for B2B teams. Together, these solutions give marketers the clarity, efficiency, and performance they need to grow with confidence. NextRoll is a privately held company headquartered in San Francisco, CA.

Pinterest is the world's first visual discovery engine. People use Pinterest to discover ideas to try in their daily lives. More than 300 million people around the world use Pinterest to dream, plan and prepare for things they want to do in life. We always start by asking: whose problem are we solving? Is it significant? Are we making Pinners lives better? If products don't work for people they don't work for us. The success of Pinterest depends on the ownership of every Pinployee. We all own Pinterest and work to achieve results that benefit everyone, not just specific teams or individuals.