Loading profile…
Loading profile…
Klaus Lauenborg Breitenstein — CEO & Founding Partner · Assure A/S · Copenhagen, Capital Region of Denmark, Denmark.
Direct contact
No direct contact on file for Klaus yet.
About
I have spent 30 years building, leading and controlling financial companies in one of the most regulated environments there is — Danish and Luxembourg-based investment management. In 2014, together with my partners, I co-founded Assure A/S to build a best-in-class platform for consolidated reporting, wealth administration and discretionary portfolio management for family offices, ultra high net worth individuals (UHNWI) and institutional clients. As CEO, I led the team that grew Assure A/S into a recognised group — Assure Reporting A/S, Assure Family Office A/S, Assure Fondsmæglerselskab A/S and Assure Alternatives A/S — with a strong position in the Danish market. In 2025, the Assure Group completed the sale of a majority stake to Söderberg & Partners, one of Scandinavia's leading financial advisory groups. I remain as CEO, with a clear ambition to accelerate growth across all business areas — leveraging the combined strength of the Söderberg & Partners platform and network. Throughout my career I have carried personal responsibility for Corporate Governance, Compliance and Capital Management as CEO, CFO, board member and Chairman in FSA-regulated companies — spanning UCITS funds, SICAV structures and discretionary portfolio management. My particular expertise is creating structure and clarity in complex financial organisations — building control environments from scratch, developing investment products and ensuring governance works in practice, not just on paper. Throughout my career I have built expertise across:→ 12 years as CEO — bridging the strategic and the operational→ Building and exiting a regulated financial group — from startup to institutional ownership→ Serving family offices and UHNWI — consolidated reporting, family office services, wealth administration and discretionary portfolio management→ Product development across Danish mutual funds and Luxembourg UCITS and SICAV structures→ FSA Fit & Proper approved — chairman and member roles in Denmark and Luxembourg → UCITS, AIFMD, EMIR and Danish/Luxembourg financial regulationI am open to board mandates where my experience and competencies can create real value.
Experience
CEO & Founding Partner
Assure A/S · Hellerup
Apr 2014 – Present
Co-founder and CEO of the Assure Group, providing consolidated reporting and wealth administration to family offices, ultra high net worth individuals (UHNWI) and institutional clients in Denmark. Responsible for the group's overall strategy, growth and regulatory compliance across the Assure Group entities. In 2025, led the process, supported by an M&A advisor, that resulted in the successful sale of a majority stake in the Assure Group to Söderberg & Partners, one of Scandinavia's leading financial advisory groups. https://assurewealth.dk/
CEO - Fit & Proper approved by the Danish FSA
Assure Fondsmæglerselskab A/S · Hellerup
Oct 2023 – Present
CEO with FSA Fit & Proper approval of an FSA-regulated investment firm offering discretionary portfolio management to high net worth individuals (HNWI), family offices, ultra high net worth individuals (UHNWI) and institutional clients. Responsible for the firm's overall strategy, business development, regulatory compliance and governance. Previously served as Chairman of the Board for 10 years (2013–2023) prior to assuming the CEO role. https://www.assure.dk/
Education
Skills
Related professionals · Assure A/S