Venture studio · Product development

We build our own ventures. And we build yours.

Fun Management launches its own technology companies and partners with founders and businesses to design, build, and scale theirs. Same senior team, same standards.

Portfolio

Our Ventures

DropIn

Childcare on your schedule

Book licensed daycare by the hour, half-day, or full day, often the same day, with no long-term enrollment contracts.

LiveVisit site (opens in a new tab)

Invoflux

AI-powered accounting for European businesses

Automating bookkeeping, compliance, and financial workflows for small and mid-sized companies across the EU.

LiveVisit site (opens in a new tab)

This2That

One-click data migration tools

Move your content between platforms without the hassle. Pay once, own your data forever. No subscriptions, no lock-in.

LiveVisit site (opens in a new tab)

Invobridge

Stripe invoices, sent automatically to e-Factura

Connect Stripe with a read-only key and invoices flow straight into Romania’s e-Factura system, validated before sending, with UBL 2.1 XML, BNR currency conversion, and the 5-day legal deadline tracked.

LiveVisit site (opens in a new tab)

SignalTower

Handling media in multi AI agent workflows

Launching 2026

CinemaRX

Romania’s movie community, since 2005

Discover films and series, check cinema showtimes across Romania, read reviews, and keep a diary of everything you watch.

LiveVisit site (opens in a new tab)

Lupito

AI-powered pet health app

Personalized health tracking and early-warning insights to help pet owners give their companions longer, healthier lives.

Coming soon

Stealth startup

AI-powered nutrition app

Smart meal planning and nutrition coaching tailored to individual goals, preferences, and dietary needs.

Coming soon

New Ventures

Always building what’s next

We incubate one to two new companies every year and build for a select number of clients. If you have an idea, we’d love to hear it.

Get in touch

Development

Built by the team behind our ventures

The engineers who ship Invoflux, This2That, and Invobridge also build for a select number of external clients. You get a team that has been in the founder's seat, not an agency guessing at it.

01

MVPs for founders

From idea to launched product in weeks. We scope hard, build what matters, and get you in front of real users fast.

02

Mobile apps

React Native apps for iOS and Android. New builds, performance rescues, and scaling apps that already have traction.

03

AI products & automation

LLM features, agents, and workflow automation that do real work, not demos. We run AI in production across our own products.

04

Team augmentation

A senior squad that plugs into your team, owns delivery, and makes technical decisions. Not ticket-closing contractors.

Founder mindset

We build and run our own companies, so we think about your business, not just your backlog.

Senior only

Every engineer on the team has years of shipping production apps. No juniors learning on your budget.

EU-based

CET/EET time zones, with working hours that overlap Europe and the US East Coast.

Team

Experienced founders. Senior engineers.

Small teams, fast cycles, and people who have done this before.

years building technology companies
20+
years building technology companies
LiveRail exit, acquired by Facebook
$500M
LiveRail exit, acquired by Facebook
years of senior engineering
10+
years of senior engineering
years shipping React Native apps
8+
years shipping React Native apps
Sergiu Biris

Sergiu Biris

Founder, Fun Management

Serial entrepreneur with more than 20 years of building and exiting technology companies: LiveRail (acquired by Facebook in 2014 for $500M), xPortal, Trilulilu, Zonga. Every project, ours or yours, gets the same product and go-to-market judgment.

The engineering team

A senior product engineering squad with over a decade of experience across mobile, web, and AI, trusted by fintech, crypto, and high-growth startups.

The same people build our ventures and our clients' products. They own technical decisions, obsess over performance and reliability, and ship on weekly cycles.

How We Build

01

Insight

We uncover real problems through direct experience and obsessive research.

02

Prototype

Rapid design + development loops to validate assumptions.

03

Grow

Find traction. Iterate. Scale what works.

Philosophy

  • •Products, not PowerPoints.
  • •Small teams, big outcomes.
  • •Design and clarity matter.
  • •We build for the long run.
  • •Your product gets the care we give our own.

Contact

Let's build something.

Tell us what you are building, where you are today, and when you need it. Have a venture idea instead? We incubate one to two new companies every year and would love to hear it.

We reply to every message within two business days.

Prefer email? hello@funmanagement.ro