Sintra Funding News -Lithuanian AI Startup Sintra Secures $17M In Seed Round

The company started just a year ago as a weekend project and has quickly grown into a business making $12 million in annual revenue, with over 40,000 paying customers around the world.

Sintra’s platform gives small business owners smart AI tools that can manage tasks like handling social media, replying to customer messages, and organizing schedules. It works smoothly with platforms like Facebook, Gmail, and Google Calendar.

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The journey of Sintra began in 2018 in a small garage in Vilnius, Lithuania, where two teenagers, Chris Sidlauskas (16) and Rokas Judickas (15), started a marketing agency to help local small businesses.

With no formal training, they built websites and managed social media for clients, learning everything about sales, design, and business through real-world experience. Their garage soon became a creative space filled with young talent, many of whom later entered the tech and marketing world professionally.

A few years later, Chris built a successful e-commerce agency, helping U.S. brands grow and generating over $100 million in client revenue. But at just 21, he sold his shares, bought a yellow van, and traveled across Europe in search of purpose.

During that trip, in early 2023, he saw the growing interest in ChatGPT prompts and decided to launch a quick weekend product on Notion with a friend. It went viral, and Sintra was born.

As demand surged, the team came back together to refine the idea, focusing on helping small businesses. They created “Sintra Helpers,” a set of 12 simple AI tools to handle everyday tasks like social media, admin, and support.

The concept clicked with users. Rokas returned to lead product design, and they brought in Vasaris Kaveckas, a self-taught developer who started coding games at 15, to build the platform.

After months of building and testing, Sintra 2.0 officially launched on May 15, 2024.

Lithuanian AI startup Sintra today announced $17 million Seed funding to double down on its mission of empowering small businesses with simple-to-use AI helpers.

Founded just over a year ago, Sintra has grown from a weekend project to a $12 million ARR business serving over 40,000 paying customers globally.

The company’s platform offers small business owners AI-powered helpers capable of handling core tasks like social media, customer support, and administrative work by integrating directly with tools such as Facebook, Gmail, and Google Calendar.

With no prior experience, they helped entrepreneurs build websites and run social media, learning sales, design, and business through hands-on work. The garage became a hub for young talent, many of whom later became professionals in tech and marketing.

After a few years, Sidlauskas built a successful e-commerce growth agency, scaling US brands and generating over $100 million in revenue for clients. But by 21, he left it all, sold his shares, bought a yellow van, and went searching for meaning across Europe.

The first idea for what would later become Sintra came during that trip — in a small pit-stop apartment in early 2023 — after noticing the rising demand for ChatGPT prompts.

Sidlauskas and a friend launched a Notion-based product over the weekend. It went viral. Sales poured in. Sintra was born.

Coping with intense customer demand, the original team regrouped to double down on the value proposition for SMBs and rebuild the product from scratch.

They tested out Sintra Helpers — a set of 12 simple AI teammates — and the idea immediately resonated. Rokas returned to lead product design. Vasaris Kaveckas, a self-taught engineer who began coding games at 15, joined to lead development.

After months of work and one final sprint, Sintra 2.0 launched publicly on May 15th, 2024.

Sidlauskas shared: “We were running out of money and ideas. Traditional tools just weren’t exciting — business owners didn’t want another generic app.

The team brought together its vector database, called “Brainy AI,” which stores business context, and then launched the platform.

“We had about one month of runway left. The launch exploded. People loved it.We planned to test 12 agents, expecting users to niche down. But 90 per cent opted in for all of them. That shifted our focus to building an integrated “office out of the box” for SMBs.”

The launch went viral, and in just 57 days, the product reached an impressive $1 million in annual recurring revenue (ARR) — and it’s been growing steadily ever since.

Sintra mainly serves small business owners in the U.S., especially those in the service sector. Most of their customers are solo entrepreneurs or very small teams of two or three people.

According to Sidlauskas, unlike other AI startups that aim to replace employees, Sintra’s goal is different. “We’re not trying to replace people—we’re here to help those who don’t have the budget to hire staff in the first place,” he explains.

“What small business owners need isn’t just another software product—they need assistants that provide real help – and that feel natural and intuitive.We’re building AI teammates that help people turn their work into play.”

Small businesses make up 44% of the world’s GDP, but over 45 million of them still lack proper digital tools.

Many still use spreadsheets, outdated software, or apps meant for personal use—not business. Sintra wants to change that with its “AI business in a box.” It’s a platform where small business owners can quickly set up a team of AI assistants in just minutes.

These AI helpers are powered by Brain AI—a smart, secure system that learns each business’s needs over time. This helps the assistants work more independently, whether it’s replying to messages, creating marketing content, or managing operations. They act more like real teammates than simple tools.

The most popular helper so far is “Soci,” which handles social media. According to Sidlauskas, Soci understands a business’s context, connects to its social accounts, and can create and schedule posts automatically.

“She even asks for review and approval when needed. All interactions run through chat, inbox notifications, and our context layer, Brain AI.”

Sintra is proudly built in Lithuania—a small country with fewer than 3 million people, known for its ancient language and strong spirit shaped by history. Though the nation has faced hardship and exile, its people have grown up with grit, not privilege.

For the Sintra team, their mission is deeply personal. They want to prove that global impact can begin in a simple garage in Vilnius. They’re not just building for today—they’re building something meaningful for future generations.

Sidlauskas asserts that this round isn’t just about funding. “It’s about showing that we can build globally relevant products out of Lithuania. We thought about relocating to San Francisco, but there’s so much talent and ambition here in Europe. We need to think bigger and take more risks.”

“When we first saw Sintra – 2 months after commercial launch, we thought it was just another AI agent with traction off the charts. It was interesting to spend a day with the team in Vilnius. During this day we knew we wanted to invest – the vibe and intensity of Silicon Valley in a modest apartment in Vilnius felt magical.” said Michal Rokosz, Partner at Inovo.

About Sintra

Sintra is a Lithuania-based company, founded in 2023 by Chris Sidlauskas and Titas Jurkonis. It hasn’t raised any funding yet and runs independently. Sintra offers AI-powered tools that help small businesses automate their tasks and workflows.