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Firma  | Diagnostiker/-innen | Ort | Kanton | Website | |
|---|---|---|---|---|---|
| Zwéco | Würsten Frédéric | Versoix | GE | Details | |
| Yspekh Sàrl | Dupayrat Marc | L'Auberson | VD |  | Details |
| WSP Ingénieurs Conseils | Calpini Caroline Linda Sophie | Lausanne | VD | | Details |
| WOLTER SDM AG | Wolter Henry | Büren SO | SO | | Details |
| WohnSein GmbH Gesundes Wohnhandwerk & Bauschadstoff Diagnostik | Scheuber Adrian | Stans | NW | | Details |
| Weinmann Energies SA | Anso Yannick | Echallens | VD | | Details |
| Vidourle SA | Duprat Samuel Guyot Philippe | Lausanne | VD | | Details |
| Unisanté | Favre Maude | Lausanne | VD | | Details |
| UB-BAUQUALITY | Bardy Uolf | Chur | GR | | Details |
| Truffer Ingenieurberatung AG | Bichsel Dario | Lalden | VS | | Details |
| Triform EA SA | Balsiger Christian | Fribourg | FR | | Details |
| Till Roth | Roth Till | Basel | BS | | Details |
| Tavillon-Bois et amiante | Schopfer Hervé | Château-d'Oex | VD | Details | |
| SURCOTEC SA | Limat Dominique | Plan-les-Ouates | GE | | Details |
| Studio ing. M.Küng e G.Villa | Küng Marco Villa Giovanni | Biasca | TI | | Details |
| Studio d’ingegneria Molinari Consulenze SA | Molinari Ronnie | Sorengo | TI | | Details |
| Studio d'ingegneria E. + P. Vanetta, Lugano | Vanetta Paolo | Pregassona | TI | Details | |
| Studio d'ingegneria Daniele Pedrazzi | Pedrazzi Daniele | Losone | TI | Details | |
| Studio CFG Sagl | Piatti Enrico | Chiasso | TI | Details | |
| STRUCTEO Sàrl | Pfander Vanessa | Hérémence | VS | Details | |
| SRP Ingenieur AG | Andereggen Juliane | Brig-Glis | VS | | Details |
| Spörri Graf Partner Architekten ETH FH Sia | Nägeli Christoph | Bern | BE | | Details |
| SolGeo AG | Meyer Jörg | Solothurn | SO | | Details |
| Sieber Cassina + Partner AG | Zollinger Annamaria | Olten | SO | | Details |
| sermet gross architectes sàrl | Sermet Thierry | Lausanne | VD | | Details |
| sd ingénierie déneriaz-pralong sion sa | Héritier Frédéric | Sion | VS | | Details |
| Schadstoffscreening.ch (HR: Schadstoffscreening Lanicca) | Lanicca Sandro | Scharans | GR | | Details |
| Schadstoffcheck GmbH | Nardone Giuseppe | Zug | ZG | | Details |
| Schadstoff-Diagnostik Schweizer GmbH | Schweizer Thomas | Bern | BE | | Details |
| SageXpert Sàrl | Sagette Aurore | Grandson | VD | | Details |
| RWB Jura SA | Parietti Julien | Porrentruy | JU | | Details |
| Repower AG | Lüscher Dominik | Landquart | GR | | Details |
| Renzetti & Partners | Renzetti Luca | Lugano - Pazzallo | TI | | Details |
| Realini Brandberg Architetti Sagl | Realini Saba | Lugano | TI | | Details |
| Quaglia SA | Quaglia Michele | Brissago | TI | | Details |
| Prona Romandie SA | Strinning Timothée | Yverdon-les-Bains | VD | | Details |
| Produbati Sàrl | Cretton Maël | Sion | VS | | Details |
| PPLUS Sàrl | Maradan Pierre-Olivier | Neuchâtel | NE | | Details |
| PNP Geologie & Geotechnik AG | Jörger Dominik | Muttenz | BL | | Details |
| Perreten & Milleret SA | Besson Adrien | Carouge | GE | | Details |
| pegeol ag | Koch Pascal | Steinhausen | ZG | | Details |
| PE Engineering AG | Kittel Sören | Arlesheim | BL | | Details |
| PBBG Gérances et Gestions Immobilières SA | Emery Pierre-André | Lausanne | VD | | Details |
| Pawis GmbH | Savi Daniel | Zürich | ZH | | Details |
| Patrick Epiney Ingénieur Sàrl | Degen Vincent | Vissoie | VS | | Details |
| Olonor Ingénierie Sàrl | Jeanneret Mikko | Echallens | VD | | Details |
| Novacity SA | Faye Jean-David Gallier Christophe Gallier Nans Laffaire Maxime | Carouge | GE | | Details |
| Nivalp SA | Keller Cloé | Grimisuat | VS | | Details |
| Michele Viviani Diagnosi Amianto | Viviani Michele | Lugano | TI | Details | |
| Meier Diagnostics Sàrl | Meier Antoine | Dully | VD | Details | |
| MAWI ENERGIE SA | Pomponio Cristina | Locarno | TI | | Details |
| MARTIN ingénieurs civils sàrl | Martin Hervé | Château-d'Oex | VD | | Details |
| Maric Ingénieurs & Géologues SA | Sudan Pascal | Vevey | VD | | Details |
| Manuel Tâche Sàrl | Tâche Manuel | Remaufens | FR | | Details |
| Magma AG | Gruber Christian | Schaffhausen | SH | | Details |
| Magma AG | Kreikenbaum Eike | Zürich | ZH | | Details |
| M-Entreprise Générale Sàrl | Hadzikadunic Mirza | Collombey | VS | | Details |
| Luigi Tunesi Ingegneria SA | Beffa Corinna | Pregassona | TI | | Details |
| Lucida Geologie | Stutz Stephan | Almens | GR | | Details |
| LPA-ingénieurs & co. Sàrl | Fauconnet Cécile Rey Jenny | Grand-Lancy | GE | | Details |
| Louise & Picadus sàrl | Carrara Anouchka | Renens | VD | | Details |
| Logically BS AG | Ackermann Dominik Hiltbrunner Martin Rubin Patric | Riedtwil | BE | | Details |
| LG-Expertises Sàrl | Grobet Luc | le Bouveret | VS | | Details |
| LG Architecture Sàrl | Gerini Lucia | Belmont s/Lausanne | VD | | Details |
| LeBird sàrl | Serex Caroline | Genève | GE | | Details |
| Lüthi BauschadStoffBeratung | Lüthi Dominique | Arlesheim | BS | | Details |
| Lüscher Umweltplan | Lüscher Dominik | Näfels | GL | | Details |
| Lüscher & Läubli GmbH | Läubli Michael | Wetzikon | ZH | | Details |
| Lattion Bruchez Ingénieurs SA | Bruchez Grégoire | Le Châble | VS | | Details |
| Lamy expertise, succursale de Fribourg | Wicht Alexandre | Corminboeuf | FR | | Details |
| Lamy Expertise SA | Dupont Romain Parente Veloso Filipe | Bussigny | VD | | Details |
| Lamy Expertise SA | Reddah Haitem | Meyrin | GE | | Details |
| LaboTech Sàrl | Carouge | GE | Details | ||
| Kiefer & Studer AG | Egli Dominique Raphael Schibler Reto | Reinach | BL | | Details |
| Kellerhals + Haefeli AG Bern | Häberling Marc-Olivier Jakob Jürg | Bern | BE | | Details |
| Karakas et Français SA | Gavillet Sophie Laurent Lucie Senn Claudia | Petit-Lancy | GE | | Details |
| Jura BauConsulting GmbH | Bischof Andreas Tschumi Nicole | Solothurn | SO | | Details |
| Joppen & Pita AG | Joppen Mathias Parison Kai | Basel | BS | | Details |
| JL Expertises Sàrl | Lachaux Julien | Savagnier | NE | | Details |
| Jäckli Geologie AG - Zürich | Fäh Jonas | Zürich | ZH | | Details |
| Jäckli Geologie AG - Winterthur | Schwarzenbach Christian | Winterthur | ZH | | Details |
| IPSO ECO AG | Lauber Thomas | Rothenburg | LU | | Details |
| IPRAC Consulenze | Cecchin Beatrice Fontana Athos | Ascona | TI | Details | |
| Inpto engineering Sàrl | Pinto Davide | Morges | VD | | Details |
| Ingeone Sàrl | Bôle Maximilien | Le Locle | NE | | Details |
| Ingenieurteam AG | Klee Roland Wyss Josef | Rebstein | SG | | Details |
| IBS Sàrl | Magnin Pascal | Athenaz | GE | | Details |
| I-SCAN Environnement | Badoud Benoît | Avenches | VD | | Details |
| Hydro-Géo Environnement Sàrl | Berthoud Jérôme | Petit-Lancy | GE | | Details |
| Hunziker Betatech AG | Isler Christian | Winterthur | ZH | | Details |
| HTS, Home Tech Service SA | Hubmann Eric | Petit-Lancy | GE | | Details |
| HSE Conseils SA - Vaud | Golay Florian Leyvraz Guillaume | Gland | VD | | Details |
| HSE Conseils SA - Valais | Guzman Patricio | Sion | VS | | Details |
| HSE Conseils SA - Neuchâtel | Dutoit Marc | Marin-Epagnier | NE | | Details |
| HSE Conseils SA - Genève | Depaermentier Pauline Porret François | Carouge | GE | | Details |
| HSE Conseils SA - Fribourg | Méziat Cécile | Bossonnens | FR | | Details |
| HSE Conseils SA - Jura | Huguelet Fabien | Delémont | JU | | Details |
| HPrevention Sàrl | Héritier Roger-Eric | Savièse | VS | | Details |
| hpb consulting ag | Grichting Michael | Bern | BE | | Details |
| HOMA architetti sagl | Biason Marco | Muralto | TI | | Details |
| HOLINGER AG | Jeyadevan Babirthan | Emmenbrücke | LU | | Details |
| Hallenbarter AG | Fux Roger | Naters | VS | | Details |
| Guilloud Gebäudediagnostik GmbH | Guilloud Vincent | Steinerberg | SZ | | Details |
| GSA Becker AG | Becker Jan Fiedler Uwe Schnell Sören-Ulrich | Dübendorf | ZH | | Details |
| Grundbauberatung AG | Noser Lukas | St. Gallen | SG | | Details |
| GOY SA | Goy-Eggenberger Doris | Ollon | VD | | Details |
| Gnac Sàrl (Stop-Amiante) | Gaisch Robert | Corcelles | NE | | Details |
| GLOBAL IMMO 2002 | Meregnani Julien | Genève | GE | Details | |
| Gilles Carrier Eco-Services | Carrier Gilles | La Rippe | VD | | Details |
| GeoteXpress Sàrl | Devaux Anthony | Carouge | GE | | Details |
| GEOTEST SA | Backman Nina | Givisiez | FR | | Details |
| GEOTEST AG | Gygax Sebastian Züger Daniel | Zollikofen | BE | | Details |
| Geotest AG | Hottarek Marc | Davos Dorf | GR | | Details |
| Geotechnisches Institut AG Basel | Guske Denis | Basel | BS | | Details |
| Geopro SA | Surace Ivan | Roche | VD | | Details |
| Geologik AG | Graf Angela | Luzern | LU | | Details |
| gd-andermatt gmbh | Andermatt Martin | Baar | ZG | | Details |
| GC Maket (Architecture et Energies) | Chappatte Géraldine | Les Bois | JU | | Details |
| Géolina SA | Alcala Carina | Rossens | FR | | Details |
| Gartenmann Engineering AG | Lörtscher Michel | Basel | BS | | Details |
| FRIEDLIPARTNER AG | Bürgi Daniel Fehr Marco Kieser Evelyne van Galen René Zier Fabian | Zürich | ZH | | Details |
| Fleury Habitat Conseils | Fleury Didier | Morrens | VD | | Details |
| FJ Consulting Sàrl | Schweizer Christian | Préverenges | VD | Details | |
| Fabiano Gebäudediagnostik | Fabiano Mino | Landquart | GR | | Details |
| Expert Conseils | Termignone Eric | Leysin | VD | Details | |
| Eurofins Microscan SA | Ebinger Jean-Christophe | Chavannes-près-Renens | VD | | Details |
| ERM Swiss GmbH | Verburgh Antoine | Lausanne | VD | | Details |
| Energie Concept SA | Maillard Etienne | Bulle | FR | | Details |
| Ecotoxic Sàrl | Dupraz Sébastien | Nyon | VD | | Details |
| Ecoservices Vaud Sàrl | Gomes Nuno Gonçalves José | La Conversion | VD | | Details |
| Ecoservices SA | Dubouloz Eric | Carouge | GE | | Details |
| Ecosens AG | Özdürük Hüseyin | Wallisellen | ZH | | Details |
| EcoRisana SA | Mantegazzi Davide Zichella Antonella | Taverne | TI | | Details |
| Econs SA | Bertoni Gianluca Bufalino Donatella Milani Gustavo | Bioggio | TI | | Details |
| Econetta AG | Klapper Daniel | Basel | BS | | Details |
| EcoLogis Suisse SA | Tripod Tièche Sandra | Bulle | FR | | Details |
| EcoLogis Suisse SA | Déglise James | Bulle | FR | | Details |
| Ecointesys SA | Lucchini Danilo | Bioggio | TI | | Details |
| ECODIAG SA | Lehmann Laurence Santi Olivier | Morges | VD | | Details |
| EcoControl SA | Ambrosini Jordi Nicora Magali | Locarno | TI | | Details |
| Ecoanalisi SA | Bisagni Attilio | Castione | TI | | Details |
| Easy Amiante SA | Barril Patrick | Carouge | GE | | Details |
| E+P Architekten AG | Häberle Martina | Solothurn | SO | | Details |
| Dovre & Fallinger | Favre Patrick Jacquier Noémie | Genève 3 | GE | | Details |
| Dionea SA | D’ottavio Antonietta | Lugano | TI | | Details |
| DG Expertise SA, centrale Genève | Gosselin Djilloul | Meyrin | GE | | Details |
| DEXYS Sàrl | Schaller Yannick | Champvent | VD | | Details |
| David Kappeler | Kappeler David | Bienne/Biel | SO | Details | |
| DARBELLAY EXPERTISE | Darbellay Loïc | Massongex | VS | | Details |
| D-B Diagnostik | Pavkovic Dragan | Biel/Bienne | BE | | Details |
| CSD Ingenieure AG - Frauenfeld | Gammel Stephanie | Frauenfeld | TG | | Details |
| CSD Ingenieure AG - Zürich | Azzouzi Hamid Liebetanz Dorothee | Zürich | ZH | | Details |
| CSD Ingenieure AG - St. Gallen | Morrone Joel Wiech Mario | St. Gallen | SG | | Details |
| CSD Ingenieure AG - Bern | Haas Petra Vogt Martin | Bern | BE | | Details |
| CSD Ingegneri SA - Ticino | Bernasconi Davide Maria Silini Siria | Lugano | TI | | Details |
| CSD Ingénieurs SA - Porrentruy | Fringeli Pauline | Porrentruy | JU | | Details |
| CSD Ingénieurs SA - Lausanne | Nguyen Viêt-Thang | Lausanne 16 | VD | | Details |
| CSD Ingénieurs SA - Grand-Lancy | Martineau Robin | Grand-Lancy | GE | | Details |
| CSD Ingénieurs SA - Fribourg | Bourqui Karin | Fribourg | FR | | Details |
| CSD Ingénieurs SA - Carouge | Amadio Christine | Carouge | GE | | Details |
| Cornolite Sàrl | Borod Dimitry | Cornol | JU | | Details |
| Consulenze Geologiche e Ambientali SA Felber & Associati | Felber Markus Rotondo Christian Turri Stefano | Chiasso | TI | | Details |
| Construction durable - J. Crucy | Crucy Jérémy | Berne | BE | Details | |
| COMGEST-TECH Sàrl | Andujar Segovia Julien | Chexbres | VD | | Details |
| Co-Action Conseils et Expertises | Querio Enrico | Veyrier | GE | Details | |
| CHP Sagl | Palumbo Christian | Pazzallo | TI | | Details |
| Carruzzo-Assainimmob | Carruzzo Sébastien | Sion | VS | | Details |
| Bureau technique Jacques Yersin | Yersin Jacques | Nyon | VD | | Details |
| Bureau d'ingénieurs et géologues Tissières SA | Roth Stéphanie Spring Jérôme | Martigny | VS | | Details |
| Bureau d'études Impact SA | Bory Julie Bove Luca Romailler Alain | Sion | VS | | Details |
| Bureau Béatrice Clavel | Clavel Béatrice | Pully | VD | | Details |
| Bruno Santi Expertises | Santi Bruno | Villars-Ste_Croix | VD | | Details |
| BISA - Bureau d'Ingenieurs SA | Petruzzelli Hugo | Sierre | VS | | Details |
| BEG SA Géologie & Environnement | Ahmadirad Salahaddin | Aproz | VS | | Details |
| BBL Basler Baulabor AG | Palucaj Mark Schäuble Martin | Muttenz | BL | | Details |
| Bâti-Conseils Sàrl - Vaud | Dias Santos Yasmine Lehmann Laurence Schmalz Eric Schmalz Karim | Echandens | VD | | Details |
| BauTox GmbH | Schürmann Urs | Zollikofen | BE | | Details |
| BauSolution GmbH | Ryter Roland | Raron | VS | | Details |
| Baugutachter Ostschweiz | Sielisch Rüdiger | Guntershausen bei Aadorf | TG | | Details |
| Baudiagnostik Eugster GmbH | Eugster Kurt | Wollerau | SZ | | Details |
| Batimarbre SA | Vero Franco | Lausanne | VD | | Details |
| Bati-Diag SA | De Almeida Alexandre Perati Maxime Vismara Frédéric | Genève | GE | | Details |
| Basler & Hofmann AG | Ambrosini Gianluca | Esslingen | ZH | | Details |
| BABU GmbH | Carizzoni Marco Schwerzmann Romy | Zürich | ZH | | Details |
| babb. GmbH | Bischofberger Mario | St. Gallen | SG | | Details |
| B+S AG Bern | Jegge Christoph Remund David | Bern | BE | | Details |
| B+C Ingénieurs SA | Varidel Pierre-Alain Verdon Stéphane | Montreux | VD | | Details |
| Auxyme SA | Bastian Christèle | Ayent | VS | | Details |
| ASE Amiante Suisse Expert | Hendrix Michael | Genève | GE | | Details |
| asbesttest.ch GmbH | Kallen Pascal | Chur | GR | | Details |
| Arprojet Bureau d'Architecture | Aricescu Radu | Neuchâtel | NE | Details | |
| ARCHI-DT SA | Ribeiro Manuel | Montreux | VD | | Details |
| Andreotti & Partners SA | Beffa Pietro | Giubiasco | TI | | Details |
| Analysis Lab SA | Gueniat Joël | Biel-Bienne | BE | | Details |
| AMS-eco Sàrl | Santacroce Amadio | Yverdon-les-Bains | VD | | Details |
| amiantexpert.ch | Thoms Mark | Carouge | GE | | Details |
| Amiante Conseils Sàrl | Ory Marina | Genève | GE | | Details |
| AlwaysISO di Gabriele Pedroni | Pedroni Gabriele | Gnosca | TI | | Details |
| Altotox Sàrl | Jacquemet Xavier | Les Evouettes | VS | | Details |
| Alterego Concept SA | Benmouffok Abdelkrim Karmass Nadia Khedari Amine Lembrez Nathalie Vigier Benoit | Genève | GE | | Details |
| alpec engineering AG | Pfammatter Melanie | Brig-Glis | VS | | Details |
| AllGeol AG | Schweizer Michael Taferner André | Winterthur | ZH | | Details |
| AK DIAGNOSTICS | Krieger Alexandre | Corcelles-près-Payerne | VD | | Details |
| AJ Detect | Wicht Thomas | Botterens | FR | | Details |
| Airma Sàrl | Fridez Johann | Courgenay | JU | Details | |
| AFRY Svizzera SA | Marconi Fabio | Bellinzona | TI | | Details |
| AF ingénieurs SA | Faivre Arnaud | Vallorbe | VD | | Details |
| ACTA Conseils Sàrl | Wagner Stéphane | Yverdon-les-Bains | VD | | Details |
| AC Asbest-Control GmbH | Luginbühl Corinne | Kriens | LU | | Details |
| Abyss Expertise | Antic Dominik | Genève | GE | | Details |
| ABA-GEOL SA | Sommer Frédéric Vallotton Alexandre | Fribourg | FR | | Details |
| AB14 Sàrl | Giller-Zbinden Marie | Fribourg | FR | | Details |
| ab ingénieurs sa | Heiniger Mickaël Viret Schlatter Gaëlle | Thônex | GE | | Details |
| AËRIS Contrôles | Houpert Gilles | Genève | GE | | Details |
| 5P2P Expertises Sàrl - Düdingen | Daniel Yann | Düdingen | FR | | Details |
| 2me toumi ag | Salzmann Tanja Toumi Jonathan | Biel/Bienne | BE | | Details |
| 1AirSup | Nedjari Smaïn | Meyrin | GE | | Details |
| 1A Gebäudeconsulting GmbH | Jaxy Richard | Mägenwil | AG | | Details |