Mitglieder
Firma  | Diagnostiker | Ort | Kanton | Website | |
|---|---|---|---|---|---|
| Mazzoli Federico | St-Sulpice | VD | Details | ||
| 1A Gebäudeconsulting GmbH | Jaxy Richard | Mägenwil | AG |  | Details |
| 1AirSup | Nedjari Smaïn | Meyrin | GE | | Details |
| 2me toumi ag | Salzmann Tanja Toumi Jonathan | Biel/Bienne | BE | | Details |
| 3 carrés architecture sàrl | Moesching-Hubert Sandrine | Bex | VD | | Details |
| 5P2P Expertises Sàrl - Düdingen | Daniel Yann | Düdingen | FR | | Details |
| ab ingénieurs sa | Viret Schlatter Gaëlle | Thônex | GE | Details | |
| ab ingénieurs sa | Heiniger Mickaël | Thônex | GE | | Details |
| AB14 Sàrl | Giller Christophe | Fribourg | FR | | Details |
| ABA-GEOL SA | Vallotton Alexandre | Fribourg | FR | | Details |
| ABA-GEOL SA | Schouwey Vincent | Payerne | VD | | Details |
| ABA-GEOL SA | Sommer Frédéric | Fribourg | FR | Details | |
| Abyss Expertise | Dominik Antic | Genève | GE | | Details |
| ACTA Conseils Sàrl | Wagner Stéphane | Yverdon-les-Bains | VD | | Details |
| AERO.CAD Särl | Cadeddu Serge | Cheseaux sur Lausanne | VD | Details | |
| AJ Detect | Wicht Jean-Marie | Prez-vers-Siviriez | FR | | Details |
| AJ Detect | Wicht Thomas | Botterens | FR | | Details |
| AK DIAGNOSTICS | Krieger Alexandre | Corcelles-près-Payerne | VD | | Details |
| AllGeol AG | Taferner André | Winterthur | ZH | | Details |
| AllGeol AG | Schweizer Michael | Winterthur | ZH | | Details |
| alpec engineering AG | Pfammatter Melanie | Brig-Glis | VS | | Details |
| Alterego Concept SA | Karmass Nadia Vigier Benoit | Petit-Lancy | GE | | Details |
| Alterego Concept SA | Khedari Amine | Petit-Lancy | GE | | Details |
| Alterego Concept SA | Lembrez Nathalie | Petit-Lancy | GE | | Details |
| Alterego Concept SA | Benmouffok Abdelkrim | Petit-Lancy | GE | | Details |
| Altotox Sàrl | Jacquemet Xavier | Les Evouettes | VS | | Details |
| AlwaysISO di Gabriele Pedroni | Pedroni Gabriele | Gnosca | TI | | Details |
| amdiag | Béguin Jacques Brauchli Béguin Marlise | Ecublens | VD | | Details |
| Amiante Conseils SA | Ory Marina | Genève | GE | Details | |
| amiantexpert.ch | Thoms Mark | Carouge | GE | | Details |
| amiantexpert.ch | Demilly Jean-Philippe | Carouge | GE | | Details |
| AMIET DIAGNOSTIC AMIANTE | Amiet Yves | Mur (Vully-les-Lacs) | VD | Details | |
| AMS-eco Sàrl | Santacroce Amadio | Yverdon-les-Bains | VD | | Details |
| Analysis Lab SA | Gueniat Joël | Biel-Bienne | BE | | Details |
| Andreotti & Partners SA | Beffa Pietro | Bellinzona | TI | | Details |
| ARCHI-DT SA | Ribeiro Manuel | Montreux | VD | | Details |
| Archi3 Sàrl | Giuliano Giuseppe | Corseaux | VD | | Details |
| Archimède Sàrl | Glassey Gérard | Sion | VS | Details | |
| Arprojet Bureau d'Architecture | Aricescu Radu | Neuchâtel | NE | Details | |
| ASE - Michael Hendrix | Favre Alain | Genève | GE | | Details |
| ATA Bureau Technique Sàrl | Henchoz Réane | St-Maurice | VS | | Details |
| Atelier SW Technibau SA | Wolleb Sébastien | Pully | VD | Details | |
| Attilio Bisagni | Attilio Bisagni | Castione | TI | | Details |
| Auxyme SA | Bastian Christèle | Ayent | VS | | Details |
| B+C Ingénieurs SA | Varidel Pierre-Alain Verdon Stéphane | Montreux | VD | | Details |
| B+S AG | Jegge Christoph | Bern | BE | | Details |
| B+S Ingénieurs conseils SA | Jaques Christine | Genève | GE | | Details |
| B.A.A.O.Bât. | Bielser Nathalie | Bussigny | VD | Details | |
| babb. GmbH | Bischofberger Mario | St. Gallen | SG | | Details |
| BABU GmbH | Carizzoni Marco Schwerzmann Romy | Zürich | ZH | | Details |
| bafob GmbH | Herzog Gabriel | Frauenfeld | TG | | Details |
| BARD-DEMARTA | CLEMENT-GRANDCOURT FREDERIC | Cressier | NE | | Details |
| Basler & Hofmann AG | Ambrosini Gianluca | Esslingen | ZH | | Details |
| Batimarbre SA | Vero Franco | Lausanne | VD | | Details |
| Batitox | Primavesi Alfredo | La Tour-de-Peilz | VD | | Details |
| Baudiagnostik Eugster GmbH | Eugster Kurt | Wollerau | SZ | | Details |
| Baugutachter Ostschweiz | Sielisch Rüdiger | Guntershausen bei Aadorf | TG | Details | |
| BauSolution GmbH | Ryter Roland | Raron | VS | | Details |
| BauTox GmbH | Schürmann Urs | Zollikofen | BE | | Details |
| Bâti-Conseils Sàrl - Genève | Maret Pascal | Bellevue | GE | | Details |
| Bâti-Conseils Sàrl - Vaud | Schmalz Eric | Echandens | VD | | Details |
| Bâti-Conseils Sàrl - Vaud | Schmalz Yasmine | Echandens | VD | | Details |
| Bâti-Diag - GE | Laplace Robin Vismara Frédéric | Carouge | GE | | Details |
| Bâti-Diag - GE | Perati Maxime | Carouge | GE | | Details |
| Büro für Umweltchemie GmbH | Savi Daniel | Zürich | ZH | | Details |
| BBL Basler Baulabor AG | Schäuble Martin | Muttenz | BL | | Details |
| BBL Basler Baulabor AG | Palucaj Mark | Muttenz | BL | | Details |
| BEG SA Géologie & Environnement | Fonticoba Maria | Aproz | VS | | Details |
| Benoît Badoud / i-scan environnement | Badoud Benoît | Avenches | VD | | Details |
| Benoît Reymondin sàrl | Reymondin Benoît | Donneloye | VD | Details | |
| BFA diagnostic Sàrl | Barben Frederic | Fully | VS | | Details |
| BG Ingénieurs Conseils SA | Linda Sophie | Lausanne | VD | | Details |
| BIFF SA | Bard Pierre-Alain Turco Adrien | Lausanne | VD | | Details |
| BISA - Bureau d'Ingenieurs SA | Petruzzelli Hugo | Sierre | VS | | Details |
| Bosson ingénieurs conseils SA | Bosson Jean-Yves | Romont | FR | | Details |
| Bruno Santi Expertises | Santi Bruno | Villars-Ste_Croix | VD | | Details |
| Bureau Béatrice Clavel | Clavel Béatrice | Pully | VD | Details | |
| Bureau d'études Impact SA | Bory Julie Romailler Alain | Sion | VS | | Details |
| Bureau d'ingénieurs et géologues Tissières SA | Spring Jérôme | Martigny | VS | | Details |
| Bureau technique Jacques Yersin | Yersin Jacques | Nyon | VD | | Details |
| Buri Bauphysik & Akustik AG | De Vita-Läubli Michael | Volketswil | ZH | | Details |
| Ceramjoux Sàrl | Gisiger Frédéric | Le Brassus | VD | Details | |
| CHP Sagl | Christian Palumbo | Pazzallo | TI | Details | |
| Clair-net | Crottaz Pascal | Etagnières | VD | | Details |
| clg immo | Corminboeuf-Gentizon Laurence | Le Pâquis | FR | | Details |
| Co-Action Conseils et Expertises | Querio Enrico | Veyrier | GE | Details | |
| COBEA Consulenze | Iannotta Claudio | Sant’Antonio (Valle Morobbia) | TI | | Details |
| CoGEA di Athos Tadè | Tadè Athos | Losone | TI | | Details |
| Construction durable - J. Crucy | Crucy Jérémy | Berne | BE | Details | |
| Consulenze Geologiche e Ambientali SA | Felber Markus Turri Stefano | Morbio Inferiore | TI | | Details |
| Consulenze Geologiche e Ambientali SA | Christian Rotondo | Morbio Inferiore | TI | | Details |
| CSD Ingénieurs SA | Fournier Christelle | Sion | VS | | Details |
| CSD Ingénieurs SA - Fribourg | Bourqui Karin | Fribourg | FR | | Details |
| CSD Ingénieurs SA - Porrentruy | Fringeli Pauline | Porrentruy | JU | | Details |
| CSD Ingénieurs SA - VD | Catimel Sébastien | Lausanne | VD | | Details |
| CSD Ingénieurs SA Genève | Amadio Christine | Carouge | GE | | Details |
| CSD Ingegneri SA - Ticino | Bernasconi Davide Maria Silini Siria | Lugano | TI | | Details |
| CSD Ingenieure AG - St. Gallen | Wiech Mario | St. Gallen | SG | | Details |
| CSD Ingenieure AG - Zürich | Liebetanz Dorothee | Zürich | ZH | | Details |
| CSD Ingenieure AG - Zurich | Azzouzi Hamid | Zürich | ZH | | Details |
| CSD Ingenieure AG - Bern | Haas Petra Vogt Martin | Bern | BE | | Details |
| CSD Ingenieure AG - Frauenfeld | Gammel Stephanie | Frauenfeld | TG | | Details |
| D-B Diagnostik | Pavkovic Dragan | Biel/Bienne | BE | | Details |
| DEXYS | Schaller Yannick | Champvent | VD | | Details |
| DG Expertise SA | Gosselin Djilloul | Genève | GE | | Details |
| Diagnotherm Sàrl | Froidevaux Martin | Vuiteboeuf | VD | | Details |
| DIAM DIagnostic AMiante | Cuendet Michel | Lausanne | VD | | Details |
| Dovre & Fallinger | Favre Patrick | Genève 3 | GE | | Details |
| Dubois Raphaël | Dubois Raphaël | Saint-Aubin-Sauges | NE | Details | |
| E+P Architekten AG | Häberle Martina | Solothurn | SO | | Details |
| Easy Amiante SA | Barril Patrick Nayrand Julien | Carouge | GE | | Details |
| Easy Amiante SA | Roesch Arnaud | Renens | VD | | Details |
| EcoControl SA | Ambrosini Jordi Nicora Magali | Locarno | TI | | Details |
| ECODIAG SA | Santi Olivier | Morges | VD | | Details |
| ECODIAG SA | Lehmann Laurence | Morges | VD | | Details |
| Ecointesys SA | Reif Brigitte | Bioggio | TI | | Details |
| Ecointesys SA | Lucchini Danilo | Bioggio | TI | | Details |
| Ecointesys SA | Succursale di Bellinzona | Gada-Barenco Eliano | Bellinzona | TI | | Details |
| Ecologis Suisse SA | Tripod Tièche Sandra | Bulle | FR | | Details |
| Econs SA | Bertoni Gianluca Bufalino Donatella Gandolla Silvia Milani Gustavo | Bioggio | TI | | Details |
| EcoRisana SA | Mantegazzi Davide | Taverne | TI | | Details |
| Ecosens Romandie SA | Roth Stéphanie | Fribourg | FR | | Details |
| Ecoservices SA | Dubouloz Eric | Carouge | GE | | Details |
| Ecoservices SA | Derail Quentin | CAROUGE | GE | | Details |
| Ecoservices Vaud Sàrl | Gonçalves José | La Conversion | VD | | Details |
| Ecoservices Vaud Sàrl | Gomes Nuno | La Conversion | VD | | Details |
| Edil-Etica | Foltran Loris | Bevaix | NE | | Details |
| Enerconseil SA | Berclaz Nicolas | Sion | VS | | Details |
| Energie Concept SA | Maillard Etienne | Bulle | FR | | Details |
| Enrico Piatti presso Studio Grassi & Partners Sagl | Piatti Enrico | Chiasso | TI | Details | |
| ESPACES sàrl - architecture design | Gurtner Patrice | Grandvillard | FR | | Details |
| Expert Conseils | Termignone Eric | Leysin | VD | Details | |
| FJ Consulting Sàrl | Schweizer Christian | Préverenges | VD | | Details |
| FLACH CONSULTANT | Flach André | Payerne | VD | Details | |
| Fleury Habitat Conseils | Fleury Didier | Morrens | VD | | Details |
| FLK ingénieurs civils SàRL | Ruchet Robin | Gland | VD | | Details |
| FRIEDLIPARTNER AG | Bürgi Daniel Kieser Evelyne René van Galen | Zürich | ZH | | Details |
| FRIEDLIPARTNER AG | Styger Nils | Zürich | ZH | | Details |
| FS Cerutti Sàrl | Cerutti François | Gingins | VD | | Details |
| Gartenmann Engineering AG | Lörtscher Michel | Basel | BS | | Details |
| Gartenmann Engineering SA - Lausanne | Gafsou Blaise | Lausanne | VD | | Details |
| Géolina Fribourg SA | Alcala Carina | Fribourg | FR | | Details |
| GC Maket (Architecture et Energies) | Chappatte Géraldine | Les Bois | JU | | Details |
| GEOLOGIK AG | Graf Angela | Luzern | LU | | Details |
| Geopro SA | Surace Ivan R. | Roche | VD | | Details |
| Geotechnisches Institut AG Basel | Klapper Daniel | Basel | BS | | Details |
| GEOTEST AG | Gygax Sebastian Wahli David Züger Daniel | Zollikofen | BE | | Details |
| GEOTEST AG | Gut Samuel | Zürich | ZH | | Details |
| Geotest AG | Hottarek Marc | Davos Dorf | GR | | Details |
| GEOTEST AG | Heeger Christoph | Zürich | ZH | | Details |
| GEOTEST SA Fribourg | Backman Nina | Givisiez | FR | | Details |
| GLOBAL IMMO 2002 | Meregnani Julien | Genève | GE | Details | |
| Gnac Sàrl (Stop-Amiante) | Gaisch Robert | Corcelles | NE | | Details |
| Gomapro Sàrl | Prélaz Laurent | Chavannes-de-Bogis | VD | | Details |
| GOYMAN SA | Goy-Eggenberger Doris | Cuarny | VD | | Details |
| Grundbauberatung-Geoconsulting AG | Noser Lukas | St. Gallen | SG | | Details |
| GSA Becker AG | Becker Jan | Dübendorf | ZH | | Details |
| GSA Becker AG | Schnell Sören-Ulrich | Dübendorf | ZH | | Details |
| Guilloud Gebäudediagostik GmbH | Guilloud Vincent | Steinerberg | SZ | | Details |
| Gysi Leoni Mader AG | Hug Alexander | Zürich | ZH | Details | |
| Hallenbarter AG | Fux Roger | Naters | VS | | Details |
| Hämmerli SA | Palaz Guy | Château-d'Oex | VD | | Details |
| hmCAD | Mariller Huguette | Provence | VD | | Details |
| HOMA architetti sagl | Biason Marco Roncelli Michel | Muralto | TI | | Details |
| Home Tech Service SA | Hubmann Eric | Petit-Lancy | GE | | Details |
| hpb consulting ag | Zürich | ZH | | Details | |
| HPrevention Sàrl | Héritier Roger-Eric | Savièse | VS | | Details |
| HSE Conseils SA - Jura | Huguelet Fabien | Vicques | JU | | Details |
| HSE Conseils SA - Fribourg | Méziat Cécile | Matran | FR | | Details |
| HSE Conseils SA - Genève | Pinto José Porret François | Carouge | GE | | Details |
| HSE Conseils SA - Neuchâtel | Dutoit Marc | Marin-Epagnier | NE | | Details |
| HSE Conseils SA - Valais | Guzman Patricio | Sion | VS | | Details |
| HSE Conseils SA - Vaud | Massarutto Dominique | Gland | VD | | Details |
| HSE Conseils SA - Vaud | Golay Florian | Gland | VD | | Details |
| HSE Conseils SA - Vaud | Leyvraz Guillaume | Gland | VD | | Details |
| Hunziker Betatech AG | Isler Christian | Winterthur | ZH | | Details |
| Hydro-Géo Environnement Sàrl | Berthoud Jérôme | Petit-Lancy | GE | | Details |
| HYDROLINA Sàrl - Romont FR | Girardin Eric | Berlens | FR | | Details |
| IBS Sàrl | Magnin Pascal | Athenaz | GE | | Details |
| Idéo Rénovation | De Sousa de Oliveira José Amandio | Pully | VD | | Details |
| Iesec SA | Ryser René | Neuchâtel | NE | Details | |
| IFEC ingegneria SA | Marconi Fabio | Rivera | TI | | Details |
| Ingenieurbüro für Nachhaltigkeit ingna GmbH | Scheuber Adrian | Baar | ZG | | Details |
| Ingenieurteam AG | Wyss Josef | Rebstein | SG | | Details |
| Ingenieurteam AG | Klee Roland | Rebstein | SG | | Details |
| Inpto Sàrl | Pinto Davide | Morges | VD | | Details |
| IPFIM SA | Houpert Gilles | Plan-Les-Ouates | GE | | Details |
| IPRAC Consulenze | Fontana Athos | Ascona | TI | | Details |
| IPRAC Consulenze | Cecchin Beatrice | Ascona | TI | | Details |
| IPSO ECO AG | Graf Patrizia | Rothenburg | LU | | Details |
| IPSO ECO AG | Lauber Thomas | Rothenburg | LU | | Details |
| Jäckli Geologie AG | Özdürük Hüseyin | Zürich | ZH | | Details |
| Joan Séchaud Diagnostic Amiante | Séchaud Joan | Prahins | VD | Details | |
| Joppen & Pita AG | Joppen Mathias | Basel | BS | | Details |
| Jura BauConsulting | Bischof Andreas | Oberdorf | SO | | Details |
| Karakas & Français SA | Gavillet Sophie Jutzi Vincent Senn Claudia | Lausanne | VD | | Details |
| Karakas & Français SA | Verburgh Antoine | Lausanne | VD | | Details |
| Kellerhals + Haefeli AG | Häberling Marc-Olivier | Bern | BE | | Details |
| Kellerhals + Haefeli AG | Jakob Juerg | Bern | BE | | Details |
| Kiefer & Studer AG | Schibler Reto | Reinach | BL | | Details |
| Kiefer & Studer AG | Egli Dominique Raphael | Reinach | BL | | Details |
| LaJas Sagl | Masoni Jasmine | Gordola | TI | | Details |
| Lamy Expertise | Grondin Jocya | Lausanne | VD | | Details |
| Lamy Expertise Fribourg Sàrl | Marchesi Steve | Fribourg | FR | | Details |
| Lamy Expertise Fribourg Sàrl | Wicht Alexandre | Fribourg | FR | | Details |
| Lamy Expertise SA | Parente Veloso Filipe | Lausanne | VD | | Details |
| Lattion Bruchez Ingénieurs SA | Bruchez Grégoire | Le Châble | VS | | Details |
| Lüthi BauschadStoffBeratung | Lüthi Dominique | Basel | BS | | Details |
| leBird Sàrl | Fauconnet Cécile | Genève | GE | | Details |
| leBird Sàrl - Genève | Rey Jenny | Genève | GE | | Details |
| LG Architecture Sàrl | Gerini Lucia | Belmont s/Lausanne | VD | | Details |
| Logically BS AG | Hiltbrunner Martin Rubin Patric | Riedtwil | BE | | Details |
| Logically BS AG | Ackermann Dominik | Riedtwil | BE | | Details |
| Louise & Picadus sàrl | Carrara Anouchka Schneebeli Simon | Renens | VD | | Details |
| Lucida Geologie | Stephan Stutz | Almens | GR | Details | |
| Luigi Tunesi Ingegneria SA | Beffa Corinna | Pregassona | TI | | Details |
| M-EG | Hadzikadunic Mirza | Collombey | VS | | Details |
| Magma AG | Gruber Christian | Schaffhausen | SH | | Details |
| Magma AG | Kreikenbaum Eike | Zürich | ZH | | Details |
| Maric Ingénieurs & Géologues SA | Sudan Pascal | Aigle | VD | | Details |
| MARTIN ingénieurs civils sàrl | Martin Hervé | Château-d'Oex | VD | | Details |
| mawi energie SA | Pomponio Cristina | Bellinzona | TI | | Details |
| Michele Viviani Diagnosi Amianto | Viviani Michele | Lugano | TI | Details | |
| Microscan Service SA | Ebinger Jean-Christophe Garnier Christophe | Chavannes-près-Renens | VD | | Details |
| Microscan Services SA | Meier Antoine | Chavannes-près-Renens | VD | | Details |
| MONITRON AG | Lüscher Dominik | Chur | GR | | Details |
| MONITRON SA | Robin Martineau | Lausanne | VD | | Details |
| Neosys AG | Bühler Maria | Gerlafingen | SO | | Details |
| Neyroud & Chapuis SA | Neyroud Elise | Chardonne | VD | | Details |
| Nieto Architecture Sàrl | Nieto Enrique | Ecublens | VD | Details | |
| Nivalp SA | Bagnoud Nicolas | Grimisuat | VS | | Details |
| Novacity | Gallier Christophe Philippe Michaël | Carouge | GE | | Details |
| Novacity SA | Gallier Nans | Carouge | GE | Details | |
| Olonor Ingénierie Sàrl | Jeanneret Mikko | Echallens | VD | | Details |
| Patrick Epiney Ingénieur Sàrl | Degen Vincent | Vissoie | VS | | Details |
| PBBG Gérances et Gestions Immobilières SA | Emery Pierre-André | Lausanne | VD | | Details |
| PE Engineering AG | Kittel Sören | Arlesheim | BL | | Details |
| pegeol ag | Koch Pascal | Steinhausen | ZG | | Details |
| Pernet Rénovation | Pernet Jean-Samuel | Prilly | VD | Details | |
| Perreten & Milleret SA | Besson Adrien Petry Nicolas | Carouge | GE | | Details |
| Perreten et Milleret SA | Faye Jean-David | Carouge | GE | | Details |
| PNP Geologie & Geotechnik AG | Jörger Dominik | Muttenz | BL | | Details |
| PPLUS Sàrl | Maradan Pierre-Olivier | Neuchâtel | NE | | Details |
| Produbati Sàrl | Locher Claude-Alain | Sion | VS | | Details |
| Prona AG | Biel/Bienne | BE | | Details | |
| Prona Romandie SA | Hufschmid Andreas | Yverdon-les-Bains | VD | | Details |
| Prona Romandie SA | Strinning Timothée | Yverdon-les-Bains | VD | | Details |
| Quaglia SA | Quaglia Michele | Brissago | TI | | Details |
| Realini Brandberg Architetti Sagl | Realini Saba | Lugano | TI | | Details |
| Renzetti & Partners | Renzetti Luca | Lugano - Pazzallo | TI | | Details |
| RWB Jura SA | Parietti Julien | Porrentruy | JU | | Details |
| RWB Neuchâtel SA | Neuchâtel | NE | | Details | |
| SageXpert Sàrl | Sagette Aurore | Grandson | VD | | Details |
| Schadstoffcheck GmbH | Nardone Giuseppe | Zug | ZG | | Details |
| sd ingénierie déneriaz-pralong sion sa | Héritier Frédéric | Sion | VS | | Details |
| SEContrôles SA | Dupraz Sebastien | Nyon | GE | | Details |
| SERISA SA | Richard Marc | Lully | VD | | Details |
| sermet gross architectes sàrl | Sermet Thierry | Lausanne | VD | | Details |
| SOGEO Ingénieurs Conseils Sàrl | Thinard Pierre | Satigny | GE | Details | |
| SolGeo AG | Meyer Jörg | Solothurn | SO | | Details |
| Spörri Graf Partner Architekten ETH FH Sia | Nägeli Christoph | Bern | BE | | Details |
| SRP Ingenieur AG | Andereggen Juliane | Brig-Glis | VS | | Details |
| SRP INGENIEUR AG | Murisier Léonard | Martigny | VS | | Details |
| SRP Ingenieur AG | Steinmann Janine | Brig | VS | | Details |
| STRUCTEO Sàrl | Pfander Vanessa | Hérémence | VS | Details | |
| Studio Canonico e Bonato Sagl | Canonico Valeria | Morbio Inferiore | TI | | Details |
| Studio d'ingegneria Daniele Pedrazzi | Pedrazzi Daniele | Losone | TI | Details | |
| Studio d'ingegneria E. + P. Vanetta, Lugano | Vanetta Paolo | Pregassona | TI | | Details |
| Studio di ingegneria Molinari Consulenze SA | Molinari Ronnie | Sorengo | TI | | Details |
| Studio Guscio Sàrl | Guscio Sandra | Renens | VD | | Details |
| Studio ing. M.Küng e G.Villa | Giovanni Villa Küng Marco | Biasca | TI | | Details |
| SURCOTEC SA | Limat Dominique | Plan-les-Ouates | GE | | Details |
| Sysca SA | Andujar Segovia Julien | Combremont-le-Petit | VD | | Details |
| Tavillon-Bois et amiante | Schopfer Hervé | Château-d'Oex | VD | Details | |
| Tâche Manuel | Tâche Manuel | Remaufens | FR | Details | |
| Think Exergy SA | Zaccheddu Elia | Mendrisio | TI | | Details |
| TOPS-Z ARCHITECTURES & CONSTRUCTIONS SARL | Tolaj Perparim | Bex | VD | Details | |
| ToxiDiag sarl | Jan Lydia | Aigle | VD | Details | |
| TRIATEC Consulting GmbH | Heine Peter | Regensdorf | ZH | | Details |
| Triform SA | Stoppa Line | Fribourg | FR | | Details |
| Trokay Energies sàrl | Trokay Yves | Yvonand | VD | | Details |
| Truffer Ingenieurberatung AG | Bichsel Dario | Lalden | VS | | Details |
| UB-BAUQUALITY | Bardy Uolf | Chur | GR | | Details |
| Unisanté Département Santé Travail et Environnement | Favre Maude | Epalinges | VD | | Details |
| Vidourle SA | Guyot Philippe | Lausanne | VD | | Details |
| Wanner AG Solothurn | Kappeler David | Solothurn | SO | | Details |
| WEL Consulting Sàrl | Beney Stéphane | Orvin | BE | | Details |
| Willi Ingénieurs | Vuadens Didier | Montreux | VD | | Details |
| Willi Ingénieurs SA | Gabriel Nicolas | Montreux | VD | | Details |
| WOLTER SDM | Wolter Henry | Büren SO | SO | | Details |
| Zwéco | Würsten Frédéric | Versoix | GE | Details |