Open to
home-top home-top
beyond

Driving deep-tech
innovators to become
real disruptors

We are a VC fund
elevating European

real-tech startups

Our main focus is world-changing tech solutions with unique, real-life applications.
We aid founders in growing beyond the early stages (late Seed, Series A) and support their ambitions of going global.

home-top

Joining forces with founders operating within four deep-tech verticals:

Enterprise AI & Automation
SpaceTech
FinTech Infrastructure
CyberSecurity

Turning tech innovations into impactful global companies that shape reality

We empower those
 reaching for a new frontier

We believe it’s all about people with disruptive ideas and with the courage to make them happen — determined professionals, willing to embrace “real tech”. Together we unleash true European technological potential.
  • 1

    Remarkable talent

    Working with outstanding professionals, founders and investors who embody vision, boldness and real grit.
  • 2

    Business know-how

    Applying our experience in investing and building on a robust business infrastructure to be a real partner for founders.
  • 3

    Deep-tech insight

    Staying ahead of the curve in deep tech, knowing what it takes to scale up cutting-edge products and companies.
  • 4

    Focus on European potential

    Investing in European companies to bring them to the forefront of global innovation.
  • Miron
    Mironiuk

    CEO & Founder at Comose.ai

    “If you want the rainbow, you have to put up with the rain”, Adam understands that building a tech company is a bumpy road and we can count on him in both sunny and rainy days. He visited us in Shanghai, each time motivating the team and introducing us to top executives. I couldn’t imagine a better Board Member than Adam.”

  • Martin
    Markiewicz

    CEO & Founder at Silent Eight

    “We were very fortunate that we met Adam and the OTB team at the time we were starting our global expansion. Their experience and long hours spent on brainstorming helped us avoid costly mistakes, access to their network helped to speed up our execution. Great partners.”

  • Rafał
    Modrzewski

    CEO & Founder at ICEYE

    “We’ve gained deep insights from Adam and the OTB team – they’ve helped us accelerate our growth significantly. Adam has given us access to profound wisdom and experience, without compromising on details that matter. It is very meaningful to work with Adam, as he pushes you forward to achieve shared goals.”

  • Thomas
    Groissenberger

    CEO & Co-Founder at Segron

    “OTB is one of those few investors with 
a truly international approach and extensive global network of contacts, which they are proactively sharing with us (such as international marketing experts or potential customers). We are very happy to have OTB as investor and partner. OTB is one of those few investors with 
a truly international approach and extensive global network of contacts, which they are proactively sharing with us (such as international marketing experts or potential customers). We are very happy to have OTB as investor and partner.”

  • Pieter
    Fossel

    CEO at Hydrosat

    “OTB has established itself as the leading deep tech fund in Europe and one of the leading tech funds in the world. The OTB team is world class, highly professional, and a value added investor for any founding team to partner with.”

  • Adam
    Bujak

    CEO at KYP.ai

    “Adam, Marcin, and Karol do an outstanding job on all fronts, providing support exactly where it’s needed and challenging us to reach new heights. I highly recommend the OTB Team!”

  • Chris
    Rowen

    BabbleLabs

    “OTB team is deeply connected to the European tech scene, bringing key insights for our organization and customer development. Marcin showed exceptional expertise in advising on startup challenges, including funding, product planning, customer acquisition, and talent strategy. Even among the talented investors and advisors around BabbleLabs, he stood out as the most consistently available and responsive.”

  • Rasto
    Hlavac

    Founder of Minit

    “As a founder, you truly understand the value of a great investor when your startup faces challenges, which are always part of the journey. OTB Ventures are definitely such investors. Without Marcin’s tremendous help, our journey likely wouldn’t have ended in the success story of being acquired by Microsoft.”

  • Volodymyr
    Usov

    Co-founder & CEO at Kurs Orbital

    “OTB’s commitment to long-term goals and willingness to take bold bets for the benefit of society and innovation truly set them apart. They are not just investors; they are partners in progress, deeply committed to pushing the boundaries of what is possible and helping us navigate the complexities of the space industry with confidence and precision.“

Latest news

  • #time-seriesData #investment

    Welcoming Timeseer.AI to the OTB Portfolio

    We are thrilled to announce our latest investment in Timeseer.AI, a pioneering data reliability and observability platform for time-series data. Timeseer.AI’s innovative platform is designed to orchestrate OT/IoT data across organizations, ensuring high-quality, on-demand data for their customers.
    Read more
  • OTB Ventures announce their new $185m Fund 2

    OTB Ventures announced that it has closed a $185 million significantly oversubscribed fund, to build and scale Europe’s most promising early-stage DeepTech startups. Fund 2 will be backed by the European Investment Fund (EIF), Isomer Capital, NATO Innovation Fund (NIF), Foundation for Polish Science, TDJ Venture, Snowflake co-Founder Marcin Zukowski and OnDean, the family office of the Founders of Relativity.
    Read more