Your Partner in Growth

Connecting leaders and shaping a united future through collaboration and strategic partnerships.

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Join us to engage with key decision-makers and enhance your business opportunities.

Your Partner in Growth

Experience collaborative advantage and drive impactful initiatives with TSBC.

Your Partner in Growth

Experience collaborative advantage and drive impactful initiatives with TSBC.

Elevate Your Network

Connecting leaders and shaping a united future through collaboration and strategic partnerships.

What is the Three Seas Initiative?

The Three Seas Initiative (3SI) is a cooperation platform of EU member states located between the Baltic, Adriatic and Black Seas that strengthens North–South connectivity in three domains:

  • Energy: secure, diversified and cleaner systems.
  • Transport: modern road, rail, port and inland waterway links.
  • Digital: resilient data corridors, cloud and cybersecurity.

TSBC News

Dual-Use Infrastructure: The 4× Return — Security, Mobility, Growth, Sovereignty

15.10.2025

In an era of growing geopolitical tension and shifting strategic influence, investment in dual-use infrastructure is no longer a buzzword — it’s a necessity. For the countries of the Three Seas region, the priority now is to combine economic objectives with the imperative of security. This article introduces the idea of a “4× return” — a framework for understanding how dual-use infrastructure can drive both strategic and economic synergy.

Read More »

Launch of the Three Seas Business Forum 2025 Summary Report

22.09.2025

The report captures key conclusions, visions, and recommendations from the 10th, jubilee edition of the Forum in Warsaw. The event brought together ten Heads of State, government representatives, more than 60 experts, and hundreds of business leaders and investors. It demonstrates that the Three Seas has become a genuine political, economic, and strategic force – strengthening European cohesion and transatlantic ties.

Read More »

What Our Key Partners Say

The core idea behind this politically inspired but business driven format is to enhance regional connectivity in order to boost economic relations and strengthen our country's critical resilience.
President Andrzej Duda,
President Andrzej Duda,Republic of Poland
Three Seas would no longer be seen only as a region that needs to catch up, but as an engine of growth, a pillar of resilience and a strategic player.
H.E. Kolinda Grabar-Kitarović,
H.E. Kolinda Grabar-Kitarović,Former President of the Republic of Croatia
The United States stands here in partnership with all of you. We seek to work with you all for much its betterment via energy, economic and strategic cooperation.
Hon. Chris Wright,
Hon. Chris Wright,U.S. Secretary of Energy
The entrepreneurial spirit of the Three Seas region, drives countries like Poland to consistently outperform “Old Europe” due to their adaptability and competitive drive.
Rafał Brzoska,
Rafał Brzoska,Founder & CEO of InPost S.A.
The opening of the Warsaw office — only our third in Europe — reflects JBIC’s recognition of the Three Seas Region’s growing economic and strategic importance within Europe.
H.E. Nobumitsu Hayashi,
H.E. Nobumitsu Hayashi,Governor of the Japan Bank for International Cooperation (JBIC)

What Our Founder Says

The Three Seas’ flexible, business-oriented cooperation model is highly attractive, drawing interest from non-European countries seeking investment and partnership opportunities.​
Beata Daszynska-Muzyczka
Beata Daszyńska-MuzyczkaPresident of the Three Seas Business Council ​

Connecting Ambitions

Empowering Regional Connections and Collaborations

We don’t just talk about regional transformation — we convene the people who make it happen.
At the Three Seas Business Council, business leaders, policymakers, and civil society come together to shape the future of Three Seas Region.
Through high-level forums, strategic partnerships, and real-world projects, we turn dialogue into impact — with transparency, trust, and results that matter.

 

A Strategic Network Across the Three Seas

Our network brings together key stakeholders, promoting synergies that translate into effective partnerships and impactful initiatives.​

Professional Standards, Real Access to Leaders

We prioritize professionalism and high standards, ensuring our community has access to essential resources and influential leaders.

A Decade of Progress (2015–2025)​

Priority project pipeline:  interconnection projects expanded from 48 (2018) to 143 (2024); multiple projects have been completed or made substantial progress (see: www.3seas.eu).

Built an investment pillar: the Three Seas Initiative Investment Fund (3SIIF) launched in 2019, with total size of committed capital of about $1.3bn for investments across the region.

Broadened participation: Greece joined as the 13th member (2023); in 2025 Albania and Montenegro became Associated Participants States, while Spain and Türkiye joined as Strategic Partners; updated Terms of Reference for Strategic Partners adopted (2025).

Priorities 2025–2030

Connectivity execution: advance North–South transport corridors (rail/road/ports), energy interconnectors and storage, and secure digital backbones.

Capital mobilisation: strengthen the investment pillar and expand blended financing (EU instruments, DFIs, national funds, private capital).

Partnerships: deepen transatlantic and Indo‑Pacific economic cooperation (e.g., enhanced engagement with U.S. and Japan) to accelerate technology and project delivery.

Outcomes focus: turn summits and forums into delivery checkpoints, match investors with cross-border projects and drive milestones (tenders, FIDs, regulatory enablers) to keep policy-to-project continuity.

Three Seas Initiative (3SI) — Frequently Asked Questions

What is the Three Seas Initiative (3SI)?

A presidential-level cooperation format of 13 EU member states located between the Baltic, Adriatic and Black Seas, focused on developing infrastructure in three areas: energy, transport, and digital.

Strengthening North–South connectivity, mobilizing investment, and enhancing the region’s security and competitiveness across energy, transport, and digital sectors.

  • 3SI is a cooperation platform of EU member states between the Baltic, Adriatic and Black Seas. It strengthens North–South connectivity in three domains — Energy, Transport, Digital — and convenes governments, business and finance to turn cross-border plans into investable projects.
  • TSBC (Three Seas Business Council) is an independent business hub for regional cooperation among private enterprises, public institutions, civil society organisations and regulators. It acts as a collaboration hub and single strategic gateway — promoting investment, engaging stakeholders and aligning capabilities across borders. 

13 EU states: Austria, Bulgaria, Croatia, Czechia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia.

Associated Participating States: Ukraine and Moldova (since 2023), Albania and Montenegro (since 2025).
Strategic Partners: the United States, Japan, Germany, the European Commission; since 2025 also Spain and Türkiye.

Initiated in 2015 by the Presidents of Croatia (Kolinda Grabar-Kitarović) and Poland (Andrzej Duda) during a meeting of regional leaders held alongside the UN General Assembly in New York; the first summit was held in Dubrovnik in 2016.

A commercial infrastructure fund focusing on energy, transport, and digital in 3SI EU member states, backed among others by national development banks; declared total commitments are around $1.3 billion.

Portfolio examples include Cargounit (rail rolling stock, PL), Greenergy Data Centers (EE), BMF Port Burgas (BG), Enery (renewables, CEE) and R.Power (PV/BESS).

According to the 2024 status report: 143 projects in total, of which 89 are priority projects identified by the member states. More information: https://3seas.eu/about/progressreport.

No. 3SI is an informal cooperation platform of 13 EU member states in the Three Seas region; it is not an EU or NATO institution. Most 3SI countries are NATO members, but the initiative itself remains independent of both. Comparable regional formats include the Bucharest Nine (B9) and the Visegrad Group (V4).

No. 3SI membership is limited to EU member states. Non-EU countries may engage as Associated Participating States—currently Ukraine and the Republic of Moldova, and since April 2025 also Albania and Montenegro. Serbia is not a member.
Strategic Partners are the United States, Japan, Germany and the European Commission, (since 2024); Spain and Türkiye joined as strategic partners in 2025.

Via the TSBC hub: participation in TSBC events (including the Business Forum held alongside Summits), participation in sector networks, and partnerships for projects and investments, including public–private partnerships (PPPs).

Official Three Seas Initiative (3SI) documents (summit declarations, project lists, status reports) are published on 3seas.eu and via host governments’ official channels, including Presidential websites.

For Business Forum matters, 3seasbc.com provides regularly updated information and curated links; TSBC works with Presidents’ offices and embassies to surface authoritative sources.

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