Technical Consulting & Engineering in Diepoldsau

Companies

All 20 companies in Diepoldsau

PML Ingenieurbüro AG

Since 1987

Noise protectionBuilding acoustics / sound insulation in building constructionRoom acoustics

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IBW Engineering Weder

Since 1990

Engineering Office for Electrical EngineeringGrid and Energy Business

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A bis Z Planung AG

Since 1991

Planning

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wega & sunergy gmbh

Since 2006

Wind energy project development and consultingWind measurements and yield calculationsExpert reports for wind power plants

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Bilfit Technik AG

Since 2009

Leak detectionDryingDisinfection and odour neutralisation

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waldoekologiekuster gmbh

Since 2009

Planning and advisory services for forestry and ecologyExecution of forestry and ecology workTraining and continuing education for forestry and ecology

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ElsBau GmbH

Since 2011

Consulting and specialist site supervision for windows, façades and the building envelopeQuality assurance and construction inspectionsRenovation concepts for windows and the building envelope

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Tecoplan GmbH

Since 2014

PlanningDetailed designConsulting

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Tecoplan Hutter GmbH

Since 2018

PlanningDetailed designConsulting

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SIH - Schweizer Ingenieurbüro Huber AG

Since 2018

Fire protection consultingCost-effective fire protection conceptsFire protection plans

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Flowex GmbH

Since 2021

Energy centres: Heating and coolingProcess cooling / heat recoveryDistrict heating networks / BHKW

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Projektlicht GmbH

Since 2022

Lighting planningLighting solutionsSales and advice

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HL

HBB Lackiertechnik GmbH

Since 1998

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SG

ST&T GmbH

Since 2010

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KF

Karlheinz Frast Engineering

Since 2011

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KW

KLAUS WALCH, TECHNICALWORKS

Since 2011

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PG

Plan14 GmbH

Since 2014

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BA

Bad Ass Company Switzerland KlG

Since 2021

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HO

Handel ohne Grenzen GmbH

Since 2022

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HK

HV-Fitube Kilic

Since 2026

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Technical Consulting & Engineering in Diepoldsau

20Technical Consulting & EngineeringCommercial register (Zefix) · as of September 23, 2026

2011Median year of registrationCommercial register (Zefix) · as of September 23, 2026

984in the Canton of St. GallenCommercial register (Zefix) · as of September 23, 2026

15,543in SwitzerlandCommercial register (Zefix) · as of September 23, 2026

Locations

Technical Consulting & Engineering in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 23, 2026

Largest places

St. Gallen141 Wil SG44 Jona41 Gossau SG33 Altstätten SG26 Buchs SG26 Widnau22 Rapperswil SG22 Bad Ragaz19 Flawil18

Industry axis

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Technical Consulting & Engineering across Switzerland

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Place axis

Other industries in Diepoldsau

All companies in Diepoldsau

Holding Companies44 Management Consulting32 Property Management27 IT Consulting & Services20 Logistics & Transport Companies20 Real Estate Project Development18 Wholesale - General Specialty Trade18 Advertising Agencies17 Painting & Plastering14 Mechanical Engineering Industry14 Interior Construction13 Real Estate Brokerage13 Online Shops13 Software Development12 Architecture Firms11 Fiduciary Offices11 Facility Management & Cleaning11 Auto Repair Shops11 Restaurants10 Other Service Industries9 Construction & Project Management9 Textile & Clothing Industry9 Automotive & Vehicle Trade9 Wholesale - Machinery & Technical Equipment9 Coaching & Personal Development8 Building Maintenance8 Electrical Planning & Installation8 Specialized Construction Installations7 Solar & Photovoltaics7 Food Processing7 Glass, Ceramics, Stone & Construction Materials Industry7 Retail - General Specialty Trade7 Wholesale - Health & Cosmetic Products7 Wholesale - Textiles & Clothing7 Civil Engineering6 Flooring & Tiling6 Medical Technology Industry6 Plastics Industry6 Wholesale - Construction & Raw Materials6 Wholesale - Food & Luxury Items6 Building Construction5 Civil Engineering Firms5 Joinery5 Metal Construction5 Plumbing & Building Services5 Sheet Metal Work5 Beauty Salons5 Hair Salons5

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Technical Consulting & Engineering inDiepoldsau

All 20 companies in Diepoldsau

Technical Consulting & Engineering in the region

Technical Consulting & Engineering in other places

Other industries in Diepoldsau

Technical Consulting & Engineering in
Diepoldsau