ranQ
ranQ
ranQ
DirectoryIndustriesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryDiepoldsauSigmund Sieber AG
Sigmund Sieber AG Logo
Verified· 3 sources

Sigmund Sieber AG

Summary

About the company

Sigmund Sieber AG produces and supplies concrete, mortar, gravel, sand and drainage slabs and provides transport services. The company operates three plants, offers recycled product variants and monitors quality through an on-site laboratory manager.

AI-generated
Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
✓ Offered6
Concrete
Concrete for all types mentioned in the price list; on request also coloured and lightweight concrete, produced at the Oberriet and Widnau plants.
Sand and gravel
Sand and gravel range with a wide choice of materials for construction, garden landscaping, bedding layers and drainage; collection or delivery possible.
Mortar
Mortar and mortar for door and window frames from Diepoldsau, delivered to the construction site in the morning on order; supply in the Rhine Valley up to Lake Constance and Appenzell.
Recycled concrete
Recycled concrete RC-C according to the guidelines from 2030, produced with CO2-reduced cement.
Drainage slabs
Drainage slabs manufactured in-house for more effective drainage of the ground and improved ventilation of the walls.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

No knowledge articles yet

Once Sigmund Sieber AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Sigmund Sieber AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Sigmund Sieber AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Sigmund Sieber AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Werkstrasse 31
9444 Diepoldsau
Opening hours
Mon
07:00 - 11:45, 13:00 - 17:00
Tue
07:00 - 11:45, 13:00 - 17:00
Wed
07:00 - 11:45, 13:00 - 17:00
Thu
07:00 - 11:45, 13:00 - 17:00
Fri
07:00 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.710.235
Founded
2007 · 19 years
Last commercial register change
May 29, 2024
Employees
21 to 50

Similar companies

KN
Köppel Natursteine AG
Au Sg
ER
Ernö Roncz AG
Gossau Sg
PN
Pizrog Natursteine AG
Neuhaus Sg
BA
Belag AG Sennwald
Sennwald