Top Tech Startups in Eastern Europe in 2027

Moss is the all-in-one spend management platform built for modern finance teams. We bring together corporate cards, invoice management, and reimbursements with real-time budgets, smart approvals, and automated accounting built in. Moss integrates seamlessly with popular ERP systems like DATEV, Xero, and Exact Online, as well as HRIS systems such as Personio, BambooHR, and HiBob. Over 5000 businesses across Europe, including TicketSwap, CarWow, and Urban Sports Group, trust Moss to streamline spend and scale their finance operations. With €6.5B+ in spend processed annually, we help finance teams shift from manual tasks to more forward-thinking, strategic work. Whether you're managing spend across 5 or 500 employees, Moss gives you the visibility and automation you need to run finance, not spreadsheets. Interested in helping build tools to make life easier for finance professionals? Join our teams in Berlin, Amsterdam, London, Talinn and Warsaw.

We operate as a remote-first team with flexible working hours. Our focus is on clear ownership, asynchronous communication and outcomes rather than time tracking or micromanagement.

At CNTXT, our mission is to accelerate the development of AI applications & LLMs that these applications are built on. We believe that to make the best models, you need the best data. At CNTXT we leverage we provide your enterprise with data to customize powerful base generative models to safely unlock the value of AI. The CNTXT Data Engine consists of all the tools and features you need to collect, curate and annotate high-quality data, in addition to robust tools to evaluate and optimize your models. Scale powers the most advanced LLMs and generative models in the world through world-class RLHF, data generation, model evaluation, safety, and alignment.

NativeMeet was created with a simple belief: the world understands places better through people, not polished tourism narratives. Every country has its own food, traditions, language, and everyday stories—but most global platforms fail to represent them authentically. NativeMeet exists to change that. We are building a global cultural community platform that connects people through real local experiences. Instead of curated travel highlights, NativeMeet empowers locals to share their culture as it is lived—through food, traditions, neighborhoods, and community stories. Our model is country-first: we work with one trusted community partner per country who understands local identity and helps grow authentic participation. NativeMeet blends community, content, and technology to create meaningful cultural connections. We collaborate with creators, students, and community builders to document local culture while maintaining trust, accuracy, and respect. Our platform is designed to scale globally while remaining deeply local. We are an early-stage, founder-led startup focused on sustainable, community-driven growth. While we are currently bootstrapped, our priority is building strong local networks, engaged communities, and a trusted global brand before scaling further. Our culture values authenticity, ownership, and inclusivity. We work remotely, respect local autonomy, and encourage our team to lead with pride in their roots. At NativeMeet, growth is measured not just by numbers, but by the depth of connection we create between cultures.

CityZeen aims to transform the situation for over 1 billion individuals globally who lack access to secure, high-quality housing, as well as the millions more who lose out on valuable investment opportunities. With CityZeen, you're not just growing your wealth—you’re part of a movement to make sustainable living accessible for everyone.

Billions of people want to move countries, but when they do they are locked out or overcharged for the financial products most people take for granted. Since 2017 we've set out to change that. We've since insured over 1 million people, and are one of the fastest-growing companies in Europe doing over half a billion of annual revenue. And, we've only just got started - we have so many more products to build & customers to service. We believe to be continually successful we need to attract the best people. So far we have 600+ people across 3 countries, and we are always on the look-out for more brilliant people. People who are ambitious, smart, collaborative, and attracted to getting things done. Want to join us on our mission? Check out our live roles on Linkedin by clicking the jobs tab (see above ☝️) and on our careers page: marshmallow.com/jobs

Orange Trail provides managed multi-platform advertising accounts and media buying utilities for brands, agencies, and growth teams. The company supplies access to ad accounts for Meta, Google, TikTok, Snapchat and other channels, along with onboarding assistance, policy guidance, billing coordination, and ongoing issue resolution. Services include account setup, spend limit management, invoicing options, and day-to-day support for campaign continuity. Additional help covers basic tracking integrations, performance troubleshooting, and coordination around creative and compliance checks. Offerings target performance marketers seeking stable account infrastructure to launch and scale paid campaigns while reducing operational friction.