Technical Consulting & Engineering in the
Canton of Geneva

BUFFET - BOYMOND SA

Since 1979

Energestion SA

Since 1981

B+S ingénieurs SA

Since 1982

MCM Management, Control and Maintenance SA

Since 1982

Ney & Hurni SNC

Since 1984

DURLEMANN ENERGIES SA

Since 1985

R.G. Riedweg et Gendre SA

Since 1985

AAB - J. Stryjenski & H. Monti SA

Since 1985

Amstein + Walthert Genève SA

Since 1986

Steimer DS SA

Since 1987

HCC ingénieurs géomètres SA

Since 1988

Partn-Air SA

Since 1988

Conti & Associés Ingénieurs SA

Since 1988

Trafitec Ingénieurs Conseils SA

Since 1988

QMT Suisse SA

Since 1989

ZS Ingénieurs Civils SA

Since 1989

HKD Géomatique SA

Since 1989

LAYDEVANT SA

Since 1989

Cerutti Sanitaires SA

Since 1989

Hydrique Ingénieurs Civils et Environnement SA

Since 1990

K. Wintsch et Cie SA

Since 1990

Erte Ingénieurs Conseils SA

Since 1990

ab ingénieurs sa

Since 1991

COGEN Energies SA

Since 1991

Peak Partners Blue SA

Since 1991

Résonance Ingénieurs-Conseils SA

Since 1992

PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA

Since 1992

Techniserv SA

Since 1993

Helveos SA

Since 1993

EC SA

Since 1993

Schumacher & CHIngS Ingénieurs SA

Since 1994

Citec Ingénieurs-Conseils SA

Since 1994

P&M Cable Consulting Sàrl

Since 1995

Vert Demain Sàrl - Spécialiste en Transition Energétique

Since 1995

SB technique SA

Since 1996

MICALODEAL SA

Since 1996

CGG International SA

Since 1997

DUPONT SA

Since 1997