Who we are

Built by investors, operators and industry experts

Helm draws upon its team's deep industry relationships and decades of combined experience from shipping, private equity and technology sectors, to deliver robust and modern investment infrastructure.

Founded in Athens · Shipping · Private Equity · Technology

Core team

The team building the platform

Combining maritime expertise, software development and digital product design to build the infrastructure for a modern shipping investment experience.

  • Dennis Psachos

    Dennis Psachos

    Founder

    Experienced shipping-industry CFO with a 16-year international career in ship-finance and capital raising across private and public firms.

  • Dimitris Tsoukalas

    Dimitris Tsoukalas

    Founder

    15 years of commercial experience and strategic partnerships in the ad-tech space. Digital assets and tech-equity investor.

  • Konstantinos Klampanas

    Konstantinos Klampanas

    Technology

    Software engineer with 20 years of experience at high-growth technology companies in Greece, including time as CTO. Develops Helm’s customer experience infrastructure.

  • Dimitris Rouvalis

    Dimitris Rouvalis

    Technology

    Software developer and founding partner at Helm. More than 15 years of experience building digital products at leading consumer tech platforms.

  • George Misailidis

    Product Design

    Experienced designer with a decade-long career in UX, UI and digital product development, creating intuitive, user-centric experiences across startups and enterprise platforms.

  • Anastasia Terzidou

    Anastasia Terzidou

    Content

    Experienced content strategist and storyteller with a career spanning brand development, user experiences and venture creation across technology and consumer sectors.

Partners

The partners powering our ecosystem

A network spanning capital markets, shipping operations, brokerage and entrepreneurship, grounded in practical maritime and market experience.

  • Lefteris Papatrifon

    Lefteris Papatrifon

    Capital Markets

    Distinguished shipping executive with over 20 years at the C-suite and 15 in finance & asset management. Director of Diana Shipping covering corporate finance and board-level governance

  • Ioannis Zafirakis

    Ioannis Zafirakis

    Ship Management & Capital Markets

    Eminent board-level executive and investor, boasting 30 years of maritime stewardship. President and Director of Diana Shipping, leading strategic operations and finance

  • Nico Koumbatis

    Nico Koumbatis

    Maritime Tech

    Maritime and tech entrepreneur. CEO of Swift Marine with experience in shipping operations, tech-driven solutions, real estate investments, and strategic business development

  • Dimitris Kyrtsos

    Dimitris Kyrtsos

    Sale & Purchase Advisory

    Shipbroking leader. Co‑Head of Global Sale & Purchase at SSY, spearheading international S&P operations and strategic transactions across multiple vessel segments

  • Yiannis Kourkoulis

    Yiannis Kourkoulis

    Ship Management

    Leading shipping executive. CEO at Armi Shipmanagement and President - Greece at Best Oasis, driving operations, strategy, and investor engagement in global markets

  • Stratos Tsamouras

    Stratos Tsamouras

    Sale & Purchase Advisory

    Established shipbroking specialist. Senior shipbroker at Intermodal with a track record spanning nearly two decades of successfully engineering transactions across global markets

  • Andreas Vavalos

    Andreas Vavalos

    Sale & Purchase Advisory

    Prominent maritime expert with 20 years of successes. Director of S&P at Intermodal, driving strategy and commercial operations while sourcing and managing ship transactions

Advisors

The advisors supporting our team

A growing network of senior professionals from private capital, wealth management, operations and project finance, contributing strategic insight.

  • Markus Wenker

    Markus Wenker

    Project Finance

    Multifaceted and decorated finance executive. CFO of Yinson Production, with 20+ year international career in ship-finance, capital formation, banking and corporate strategy

  • Dimitris Magiakos

    Dimitris Magiakos

    Private Equity

    Private markets leader with strong investment expertise. Driving multi-family office growth at Lennertz&Co, previously led Moonfare's US office, expanding global investor base.

  • Zois Dagkaris

    Zois Dagkaris

    Technical Director

    Maritime Executive with 20+ years of senior leadership experience in global fleet operations, procurement and technical management. Managing Director at NSB group.

Helm in numbers

$10B

Capital raised

from private equity investors and public-market listings

400+

Vessel transactions

across dry bulk, tankers, containerships and offshore

>200

Years combined

of collective experience across shipping & technology

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