Management team

Executive management

Niels Eldrup Meidahl
Group CEO and co-founder

Joined: 2023

Born: 1973

Nationality: Danish

Other management positions: Chair in Hans Henning Nielsen and board member in several InstallatørGruppen companies

Education: Master of Science in Law from Copenhagen University and Master of Science in Auditing from the Copenhagen Business School.

Peter Frandsen
Country CEO, Denmark and co-founder

Joined: 2023

Born: 1968

Nationality: Danish

Other management positions: Board member in Hans Henning Nielsen, Owner of Frandsen Ejendomme, board member Tekniq, board member Tekniq El København and in several InstallatørGruppen subsidiaries

Education: Completed a Marine Engineering degree at the Copenhagen School of Marine Engineering and a mini MBA in Sustainability Management at Aros Business Academy.

Mathias Ringsted Grüner
Group CFO

Joined: 2023

Born: 1986

Nationality: Danish

Other management positions: Board member in several InstallatørGruppen subsidiaries

Education: Master of Science in Finance and Strategic Management from the Copenhagen Business School

Management team

Boris Bischoff
Country CEO, Switzerland

Joined: 2025

Born: 1982

Nationality: Swiss

Other management positions: Member of the board of InstallerGroup (Schweiz) AG and its subsidiaries.

Education: Federal Diplomas in Plumbing, Heating Systems and Technical Business (MBSZ, Zürich), Advanced Federal Diploma in Business Administration (MBSZ, Zürich), Master of Advanced Studies in Energy Economics (University of Applied Sciences Graubünden, FHGR), Certificate of Advanced Studies in SME Management (University of St. Gallen, HSG).

Andreas Weis
Country CFO, Switzerland

Joined: 2024

Born: 1988

Nationality: Swiss

Other management positions: Member of the board of InstallerGroup (Schweiz) AG and its subsidiaries, non-executive board member of Baureal Group (Baureal Holding AG, Baureal AG, Baureal Vermarktung AG) and Müller Naturstein Group (MFC Partner AG, Müller Naturstein AG)

Education: B.A. in Management and Economics (University of Zurich), Swiss Certified Public Accountant (EXPERTsuisse / the Swiss Confederation).