Liaver GmbH & co. KG

What Liaver GmbH & co. KG does

Liaver GmbH & Co. KG is a German specialty industrial materials manufacturer headquartered in Ilmenau, Thuringia, producing construction materials from recycled glass using proprietary patented expanded-glass processing technology. Its product portfolio comprises three core lines: Liaver Blähglasgranulat (lightweight, pressure-resistant, non-combustible expanded glass granules used as fillers in construction chemicals, lightweight concrete, and thermal insulation), Reapor® acoustic panels (high and broadband sound-absorbing, non-combustible, fiber-free panels for room acoustics and noise protection), and Liatec® construction panels (non-combustible panels with MED marine approval for shipbuilding). Additional variants include ring absorbers, outdoor soundproofing panels, extinguishing granulate, and cement-bound filling materials. The company serves B2B industrial customers across construction chemicals, panel manufacturing, fire protection, shipbuilding, and acoustics sectors worldwide.

The business model is direct B2B sale of bulk industrial materials from a single Ilmenau production facility to global customers, with quote-based pricing for bulk orders. Revenue mechanics are transactional material-product sales rather than recurring licenses or subscriptions. Certifications relevant to procurement and regulatory access include Blue Angel (Blauer Engel) for the granules, DIN EN ISO 9001 and DIN EN ISO 14001, MED Module B and D for Liatec® panels, IBO certification for Reapor®, and EU GDPR compliance. The company has been a subsidiary of the international Sto SE & Co. KGaA building materials group since 2019, retaining its identity as a specialized manufacturer while leveraging the parent group's corporate backing and market reach. Operational leadership is held by Managing Director (Geschäftsführer) Ronald Tschiersch.

Name

Liaver GmbH & co. KG

Legal name

LIAVER GmbH & Co KG

Website

https://liaver.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Liaver GmbH & Co. KG is a German manufacturer of expanded glass building materials made from recycled glass, supplying granules, acoustic panels, and construction panels to construction chemicals, panel, fire protection, shipbuilding, and acoustics customers globally as a Sto SE & Co. KGaA subsidiary.

Ownership category

akta.pro rank

Headquarters

HQ city

Ilmenau

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Revenue model

1. Material Product Sales: Revenue generated from selling expanded glass granules (Blähglasgranulat), acoustic panels (Reapor®), and construction panels (Liatec®) to industrial customers in construction, shipbuilding, and related sectors. Products are sold directly to manufacturers and fabricators globally.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Liaver GmbH & Co. KG is described as a manufacturer of expanded glass products derived from recycled glass. The company is based in Ilmenau, Germany, and has been a part of Sto SE & Co. KGaA since 2019. Its product range includes expanded glass granules (Blähglasgranulat), Reapor® acoustic panels, and Liatec® construction panels, serving construction chemicals producers, panel manufacturers, and industries such as fire protection, shipbuilding, and acoustics.

Product overview

Liaver GmbH & Co. KG is a manufacturer of innovative building materials made from recycled glass using patented technologies. The company's product portfolio consists of three main product lines: Blähglasgranulat (expanded glass granules) used as lightweight fillers in construction chemical products and light concrete; Reapor® acoustic panels providing high and broadband sound absorption for room acoustics and noise protection; and Liatec® construction panels with non-combustible properties and marine approval for shipbuilding. Additional specialized products include ring absorbers, outdoor soundproof panels, extinguishing granulate, and cement-bound screed. All products are produced at the company's facility in Ilmenau, Germany, and shipped worldwide to customers in construction chemicals, panel materials, fire protection, lightweight concrete, room acoustics, noise protection, shipbuilding, and other industries.

Differentiator

Problem solved

Functional benefit

Brands

• Liaver Blähglasgranulat: Expanded glass granules made from recycled glass - lightweight, pressure-resistant, non-combustible.
• Reapor Akustikplatten
• Liatec Konstruktionsplatten

Products and services

• Blähglasgranulat (Expanded glass granules) Expanded glass granules (Blähglasgranulat) manufactured from recycled glass for use as a lightweight construction filler, for construction chemicals producers, and as a base material for further processed panels.
• Reapor® Akustikplatten (Acoustic panels) Reapor® branded acoustic panels made from expanded recycled glass, designed for sound absorption applications in building acoustics and industrial noise control.
• Liatec® Konstruktionsplatten (Construction panels) Liatec® construction panels produced from expanded recycled glass for structural and constructive applications in the building envelope and panel manufacturing value chain.
• Ringabsorber Ring-shaped acoustic absorbers made from expanded glass, intended for noise reduction in industrial and architectural settings.
• Outdoor Schallschutzplatte (Outdoor sound insulation panel) Outdoor sound insulation panel made from expanded recycled glass for exterior noise barrier and sound insulation applications.
• Löschgranulat (Fire extinguishing granules) Granulated expanded glass product intended for fire protection/extinguishing applications.
• Zementgebundene Schüttung (Cement-bound fill) Cement-bound fill material based on expanded glass granules, used as a lightweight screed/fill in construction applications.

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Dennert Poraver GmbH: German manufacturer of Poraver expanded-glass granules from recycled glass, used as lightweight fillers in construction chemicals, lightweight concrete, and insulation. Most direct functional and product overlap with Liaver's Blähglasgranulat line.
• Misapor AG: Swiss producer of Misapor foam glass (Schaumglas) from recycled glass for lightweight fill, drainage, and insulation in construction. Comparable in raw material (recycled glass), end-use verticals, and B2B industrial sales motion.

Broad incumbents

• Promat (Etex Group): Manufacturer of fire-protection boards and high-temperature insulation panels for construction and shipbuilding. Overlaps with Liaver's Liatec MED-certified, non-combustible construction-panel offering in marine and building applications.
• Owens Corning (FOAMGLAS): Through the FOAMGLAS brand, produces cellular glass insulation for commercial and industrial applications. Competes in the high-performance, fire-resistant glass-based construction materials category that Liaver addresses with Liatec.
• Knauf: Large multinational building-materials group producing drywall, acoustic panels, insulation, and construction chemicals. Overlaps with Liaver's panel, acoustics, and lightweight-fill product lines.
• BASF SE: Global chemical company with a Construction Chemicals division supplying additives, fillers, and lightweight aggregates. Overlaps with Liaver's construction-chemical customer segment and lightweight-filler product line.
• Rockfon (Rockwool Group): Major manufacturer of stone-wool acoustic ceiling and wall panels for room acoustics and noise protection. Competes with Liaver's Reapor line across offices, schools, healthcare, and commercial interiors.
• Saint-Gobain Ecophon: Global leader in acoustic ceilings and wall absorbers for indoor environments. Competes with Reapor in the same specification-driven acoustic-panel category across commercial and institutional buildings.
• Sika AG: Specialty chemicals company active in construction chemicals, sealants, and lightweight concrete systems. Competes and intersects with Liaver's Blähglasgranulat customer base in construction-chemical formulations.

Others

• Sto SE & Co. KGaA: International manufacturer of facade, wall, and construction-material systems and Liaver's parent company since 2019. Acts as both strategic owner and a likely customer, with overlapping construction-chemical end markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/liaver-gmbh-&-co.-kg

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Liaver GmbH & co. KG