About Sympheny

We believe engineers should spend time engineering, not formatting data.

A spin-off of the Urban Energy Systems Laboratory at Empa, founded by a team of energy engineers and software developers who experienced the pain of manual energy planning firsthand.

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Trusted by 70+ engineering and energy teams
EWZIWBWSP
Buro HappoldAmstein+Walthert

The Team

Andrew Bollinger

Andrew Bollinger, PhD

CEO & Co-founder

Co-founded Sympheny out of Empa, part of the ETH Domain. Brings years of experience in multi-energy system optimisation, at the intersection of energy research and practice.

Julien Marquant

Julien Marquant, PhD

CPTO & Co-founder

His research on multi-scale energy optimisation (Applied Energy, 2017) is part of the method the platform runs on. Former project manager at the International Renewable Energy Agency (IRENA), with over ten years in product development and energy modelling.

Christopher McLaren

Christopher McLaren, PhD

Head of AI & Commercial Enablement

Mechanical engineering from ETH Zürich. More than ten years of experience in advanced engineering, AI strategy and governance.

Stephanie Engels

Stephanie Engels, PhD

President of the Board

A board member at ewz, one of Switzerland's largest energy utilities, and Managing Director of Switzerland Innovation Park Zürich. Deep experience in strategy, sustainability and corporate development.

Youssef Sherif

Youssef Sherif

Senior Software Engineer, Modelling & Optimisation

MSc in Energy Systems & Technology from ETH Zürich. Works across energy modelling and full-stack development of the Sympheny platform.

Charles Dabadie

Charles Dabadie

Principal Backend Software Developer

MSc degrees in computer science, applied maths and aerospace engineering in France and the US. Former visiting researcher at UC Berkeley, with extensive international experience as a backend software engineer.

Nelly Ter-Borch

Nelly Ter-Borch

Customer Support Specialist

Energy transition specialist with over three years as a project manager at WSP. Experienced across solar, district heating, building physics, and power-to-gas. She supports customers as someone who has done the work herself.

Alexander Das

Alexander Das

Member of the Board | Strategic Advisor

Heads strategy development at IWB (Industrielle Werke Basel), one of Switzerland's largest energy utilities. Brings experience in innovation, M&A and renewable energy to Sympheny's board.

Our Story

Sympheny grew out of energy optimisation research at the Urban Energy Systems Laboratory at Empa (part of the ETH Domain), beginning in 2014, and was founded as a commercial platform in April 2020. The core technologies in multi-energy systems optimisation were developed and validated through years of research at Empa and ETH Zürich before they ever reached a customer project.

That foundation isn't just history. Our continued partnership with Empa and ETH Zürich means the science behind the platform keeps advancing, in ways a standard software company can't replicate.

We realised that the transition to renewable energy was being bottlenecked by inefficient software. We built Sympheny to change that.

Our Mission

To make rigorous energy planning accessible to every engineer who needs it, so the energy transition moves as fast as the tools allow.

2014
Research founded

Energy optimisation research began at Empa, ETH Domain. Commercial platform launched April 2020.

70+
Companies

Engineering firms, utilities, municipalities, and developers across Europe.

10 million+
Configurations analysed

Technology and capacity combinations evaluated across all customer projects to date.

IWB, Rockstart & Venture Kick
Backed by

Funded by leading Swiss energy and European deep tech investors.

Trusted on real projects
“Sympheny supports our strategic energy planning in an ideal way. The flexibility is extremely convincing and the sensitivity analysis provides security in finding solutions.”
Andreas Wirz · Chief Digital Officer, Eicher+Pauli
Proven in the field

IWB · Port of Switzerland

With the utility IWB, Sympheny compared four solar strategies across 16 scenario variants for Switzerland's only commercial port — identifying 20–25% lower energy costs and the lowest-risk path against a changing tariff regime.

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Advisors

Strategic and technical advisors with decades of leadership in energy, technology, and research.

Ian Wachters

Ian Wachters

Business Advisor

25+ years in strategy, pricing, and B2B markets. Deep experience in energy, financial services and commercial leadership for technology companies.

Kurt Marlein

Kurt Marlein

Product & Business Development Advisor

25 years in telecom and energy sectors. Led innovation and go-to-market strategy for digital solutions across electricity networks and district heating across Europe.

Anne Claire Pliska

Anne Claire Pliska

Business & Technology Advisor

20+ years of leadership in strategy, digital transformation, and innovation. Trilingual. Deep expertise across business, technology and sustainability.

Steve Smith

Steve Smith

Financial Advisor

Senior finance executive with deep experience in strategic finance, HR and business transformation. Strong track record of improving performance and supporting growth across international businesses.

Matthias Sulzer

Matthias Sulzer

R&D Advisor

Head of Engineering Sciences at Empa. Visiting faculty at Lawrence Berkeley National Laboratory. Former energy planner who founded and listed his own engineering company.

Programmes & backing
  • SAP.iO Foundry Munich · 2023
  • Rockstart Energy
  • Venture Kick
  • IWB

Sympheny has been selected for and backed by leading energy and enterprise innovation programmes.

Technology & research

Esri Partner Network member · built on Gurobi and AWS · research with Empa & Berkeley Lab

Sympheny originated at Empa (ETH Domain) and runs on industrial-grade optimisation and secure cloud infrastructure. See all integrations

Based in Switzerland. Built for global energy transition.

Our headquarters are in Winterthur, Switzerland, at the Technopark, a hub for engineering and cleantech research spin-offs. Our team and customers operate across Europe and beyond.

Urban Sympheny AG
Technoparkstrasse 2
8406 Winterthur
Switzerland
contact@sympheny.com +41 43 216 34 84
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