Engineer in
Diepoldsau

20 companies in Engineer based in Diepoldsau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 20 companies in Diepoldsau

PML Ingenieurbüro AG Logo

PML Ingenieurbüro AG

Since 1987 · 1–10 empl.

PML Ingenieurbüro AG is an engineering consultancy specialising in noise control, acoustics and environmental issues. Its services include noise assessments and forecasts, sound insulation planning, and support for clients and public authorities on construction and environmental matters.

EngineerNoise protectionBuilding acoustics / sound insulation in building constructionRoom acoustics
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Bilfit Technik AG Logo

Bilfit Technik AG

Since 2009 · 1–10 empl.

Bilfit Technik AG provides specialist services in leak detection, thermography and water-damage remediation, including drying and disinfection. The company also performs water-loss analyses, pipe disinfection and pressure testing, flat-roof and pool leak detection, and prepares damage assessments and remediation coordination for insurers, property managers, municipalities and private clients.

EngineerLeak detectionDryingDisinfection and odour neutralisation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
ElsBau GmbH Logo

ElsBau GmbH

Since 2011 · 1–10 empl.

ElsBau GmbH provides consulting, construction supervision and expert assessments for windows, façades and building envelopes. Its services include tendering, bid analysis, site inspections, airtightness testing, energy assessments and renovation planning; it also sells the King-Wing window sash opener.

EngineerConsulting and specialist site supervision for windows, façades and the building envelopeQuality assurance and construction inspectionsRenovation concepts for windows and the building envelope
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
SIH - Schweizer Ingenieurbüro Huber AG Logo

SIH - Schweizer Ingenieurbüro Huber AG

Since 2018 · 1–10 empl.

SIH - Schweizer Ingenieurbüro Huber AG is an engineering firm specializing in fire protection and security technology, providing consultancy, fire-protection concepts and plans, quality assurance, risk management, BIM-based planning and construction site safety services.

EngineerFire protection consultingCost-effective fire protection conceptsFire protection plans
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Projektlicht GmbH Logo

Projektlicht GmbH

Since 2022 · 1–10 empl.

Projektlicht GmbH plans and implements lighting solutions for indoor and outdoor spaces. The company advises on lighting technology and offers products from various manufacturers as well as tailored solutions.

EngineerLighting planningLighting solutionsSales and advice
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #5
Flowex GmbH Logo

Flowex GmbH

Since 2021 · 1–10 empl.5.0(2)

Flowex GmbH provides services in heating, cooling and air-conditioning technology. Its work includes developing and planning heating, cooling and energy-supply systems, overseeing construction and commissioning, and providing operational optimization, expert assessments and training.

EngineerEnergy centres: Heating and coolingProcess cooling / heat recoveryDistrict heating networks / BHKW
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #6
A bis Z Planung AG Logo

A bis Z Planung AG

Since 1991 · 1–10 empl.3.0(1)

A bis Z Planung AG provides planning services. The website lists the company name, contact details and location, but does not provide further information about specific services or business activities.

EngineerPlanning
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #7
IBW Engineering Weder Logo

IBW Engineering Weder

Since 1990 · 1–10 empl.

IBW Engineering Weder is an engineering firm specializing in electronics, electrical engineering and information technology. Its activities include energy management, electricity network services, project management and planning.

EngineerEngineering Office for Electrical EngineeringGrid and Energy Business
No score yet
wega & sunergy gmbh Logo

wega & sunergy gmbh

Since 2006 · 11–20 empl.

wega & sunergy gmbh provides project development, engineering, strategic consulting and project implementation for wind and photovoltaic projects, with services including site potential analyses, wind measurements (mast and LIDAR), yield assessments, permitting support, environmental impact studies and operation of solar partnership installations.

EngineerWind energy project development and consultingWind measurements and yield calculationsExpert reports for wind power plants
No score yet
waldoekologiekuster gmbh Logo

waldoekologiekuster gmbh

Since 2009 · 1–10 empl.

waldoekologiekuster gmbh operates in forestry and ecology, carrying out planning and construction-management work and implementing these projects. The company also offers courses and training and collaborates with specialist planners, contractors or forestry firms on larger assignments.

EngineerPlanning and advisory services for forestry and ecologyExecution of forestry and ecology workTraining and continuing education for forestry and ecology
No score yet
Tecoplan GmbH Logo

Tecoplan GmbH

Since 2014 · 1–10 empl.

Tecoplan GmbH provides planning and consulting services for construction projects, with a focus on façade, glass, metal and steel construction. Services include execution planning, tender and estimate preparation, production of drawings (views, plans, sections), material lists, assembly plans and expert reports.

EngineerPlanningDetailed designConsulting
No score yet
Tecoplan Hutter GmbH Logo

Tecoplan Hutter GmbH

Since 2018 · 1–10 empl.

Tecoplan Hutter GmbH provides planning and consulting services for façade, glass, metal and steel construction. The company prepares execution drawings, parts and material lists, assembly plans, tender documentation and expert reports.

EngineerPlanningDetailed designConsulting
No score yet

Engineer in Diepoldsau

20EngineerCommercial register (Zefix) · as of November 6, 2026
2011Median year of registrationCommercial register (Zefix) · as of November 6, 2026
1,024in the Canton of St. GallenCommercial register (Zefix) · as of November 6, 2026
16,286in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Engineer in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026