Welcome at
Lightmark Partners_
Entrepreneurial partner for software champions in The Netherlands and Belgium
Who we are_
Lightmark Partners is an entrepreneurial firm that backs profitable software and IT companies in The Netherlands and Belgium.
Founded by hands‑on operators with an extensive track record of building, scaling and successfully exiting technology companies, we invest more than capital — we invest experience, energy and enthusiasm.
Our sweet spot is majority ownership positions in companies with €1-8 million EBITDA and the potential for significant strategic or operational transformation.


What we look for_
- Sector B2B software, IT and tech‑enabled services
- Stage Profitable businesses ready for a new chapter — founder succession, professionalisation, international expansion or buy‑and‑build
- Size €1-8 million EBITDA
- Teams People who care deeply about their product and customers — and we are happy to help strengthen the line‑up where needed
Meet the team_

Tim Selman

Tim Selman_
Tim founded and led Guidion, a tech‑enabled B2B services leader in the telecom and healthcare sectors, and previously launched several software businesses such as Openlot Systems and led X-Stream Network Benelux. He started his career as a consultant in the US and China. He has an MBA from INSEAD and a MSc in Economics from the University of Amsterdam.

Vincent Lüning

Vincent Lüning_
Vincent previously co‑founded IceLake (Amsterdam/Brussels/Munich) and held investment roles at Standard Investment (Amsterdam) and HgCapital (London). He began his career in UBS’s London M&A and Leveraged Finance teams. He has an MBA from INSEAD and a MSc in Financial and Quantitative Economics from Maastricht University.

Sebastiaan Gerards

Sebastiaan Gerards_
Sebastiaan previously worked as an Investment Banking Associate and Analyst at Barclays (Amsterdam) and held several corporate finance internships. He holds Master of Science degrees in both Financial Economics and Data Science from the Erasmus School of Economics, graduating with distinction.
How we help_
1
Strategic clarity – sharpening vision, strategic choices and milestones
2
Leadership and talent – strengthening the team to match the ambition
3
Commercial excellence – pricing, packaging and go‑to‑market optimisation
4
Product acceleration – supporting and improving software and product development
5
International expansion – opening doors and expanding in other markets
6
Buy‑and‑build – identifying, acquiring and integrating attractive opportunities

Portfolio_

Unexus
Unexus_
Omnichannel Contact Centre‑as‑a‑Service
Unexus provides mission‑critical CCaaS software to Dutch housing corporations, local government and healthcare providers, and internationally through partners across Denmark, Sweden, Germany, Austria and the UK.

Energiemissie
Energiemissie_
Energy Management Software
Energiemissie (created through the merger of Energiemissie and Trenton) offers a leading SaaS platform for energy monitoring, analytics and invoice validation for public‑sector and corporate clients.
Stories_

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ESG_
Our Commitment to Sustainable Investing
At Lightmark Partners, we are dedicated to integrating Environmental, Social, and Governance (ESG) considerations into our investment processes and ownership practices. We recognize that ESG factors can significantly impact the performance of our investments and the well‑being of the communities and environments in which we operate.
Integration of ESG Factors
We actively incorporate ESG risks and opportunities into our investment analysis and decision‑making processes. By doing so, we aim to enhance long‑term value creation for our stakeholders while contributing positively to society and the environment.
Sustainability Risks
We evaluate sustainability risks that may materially affect the value of our investments. Assessing these risks allows us to make informed decisions and manage potential adverse impacts on investment returns.
Principal Adverse Impacts
We acknowledge the importance of considering the principal adverse impacts of our investment decisions on sustainability factors. We are committed to identifying and mitigating negative effects on environmental and social matters arising from our investments.
Transparency and Disclosure.
In alignment with the Sustainable Finance Disclosure Regulation (SFDR), we are committed to transparency regarding our ESG practices. We provide clear and accessible information about how we integrate sustainability risks and consider principal adverse impacts in our investment decisions.
Ongoing Commitment
Our approach to ESG is an integral part of our fiduciary duty to our stakeholders. We continuously strive to improve our ESG integration processes and remain engaged with stakeholders to promote sustainable investment practices.

Careers &Internships_
We are keen to meet talented people who share our enthusiasm for technology, entrepreneurship and creating lasting value. If you’re interested in joining our team – full‑time or as an intern – drop us a note at careers@lightmarkpartners.com.
Contact_
Lightmark Partners B.V.
Prinsengracht 769
1017 JZ Amsterdam
The Netherlands