What Siderise does

Siderise Group is a UK-based, privately held manufacturer of passive fire protection and acoustic insulation solutions for the building envelope, headquartered in Maesteg, Wales, and operating globally. The company was founded in the 1970s and has over 50 years of heritage in fire safety and noise control, supplying cavity barriers, firestops, perimeter barrier systems, fireboards, acoustic barriers, void barriers, wall lining systems, and specialty products such as the Aquafon marine acoustic range and Nexus spandrel panels. Its proprietary Siderise Lamella technology underpins a differentiated cavity barrier and firestop insulation platform, with products spanning curtain walling, rainscreen and cladding, precast/composite, masonry, brick slip, interior construction, industrial buildings, and OEM/specialist applications.

Siderise monetises primarily through one-time product sales priced on a quote basis, complemented by professional services including technical support, site support, CPD-accredited training (Siderise Academy), and specification services. The go-to-market is enterprise field sales augmented by specification channels — NBS Source (25+ products), NBS Chorus, and bimstore — where 18 authored BIM objects embed Siderise into architect and designer workflows. A Cut Strip made-to-measure fabrication service and an Inspection App support installers, deepening service revenue per project.

The business is profitable at scale: Siderise Insulation was reported among Wales's most profitable non-food manufacturers with £12.4 million pre-tax profit. The firm is privately held with no disclosed institutional investors or funding rounds, operates from 51-100 employees, and serves customers in the UK, Ireland, Europe, North America, and Australia through named enterprise relationships and a distributed construction-project customer base. Recent strategic priorities include geographic expansion, the new two-hour fire-rated rainscreen barrier, and participation in the pan-European Manufacturers' Information Hub data standard.

Name

Siderise

Legal name

Siderise Group

Website

https://siderise.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

51–100 employees

Short description

Siderise Group is a UK-based manufacturer of passive fire protection and acoustic insulation solutions for the building envelope, serving architects, specifiers, contractors, and installers globally with proprietary cavity barrier and firestop technology.

Ownership category

akta.pro rank

Product category

Passive Fire Protection & Acoustic Insulation Products

NAICS

Drywall and Insulation Contractors (238310), Painting and Wall Covering Contractors (23832), Drywall and Insulation Contractors (23831)

akta.pro primary industry

Insulation & Air/Vapor Barrier Systems (Thermal, Acoustic, WRB/AVB) (IMAFAMAD)

akta.pro secondary industries

Firestop & Penetration Sealing Materials (IMADAGAL), Roof Insulation & Cover Boards (IMADAFAN)

Keywords

• Passive fire protection
• Acoustic insulation
• Cavity barriers
• Firestop products
• Building envelope solutions

Headquarters

HQ city

Maesteg

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Fire Safety Products: Sale of passive fire protection products including cavity barriers, firestops, firboards, and perimeter barrier systems for various building applications (rainscreen, curtain walling, masonry, precast, brick slip, interior construction, industrial buildings).
2. Acoustic/Noise Control Products: Sale of acoustic insulation solutions including acoustic barriers, void barriers, barrier mats, and wall lining systems for building acoustics, environmental acoustics, and HVAC applications.
3. Technical Services: Technical support, specification assistance, site support, and inspection services provided to architects, designers, specifiers, and installers.
4. Training/CPD: ASFP Recognised training, online courses through Siderise Academy, webinars, and CPD modules for professional development.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Siderise manufactures passive fire protection and acoustic insulation products for building envelopes, including cavity barriers, firestops, spandrel fireboards, acoustic barriers, void barriers, and wall lining systems. The company supplies architects, designers, specifiers, contractors, and installers across curtain walling, rainscreen/cladding, masonry, brick slip, precast, interior construction, and industrial building applications, supported by technical services, BIM specification tools, and a custom Cut-Strip made-to-measure fabrication service.

Product overview

Siderise is a specialist manufacturer of passive fire protection and acoustic solutions for the built environment, with over 50 years of experience. The company offers two core product lines: fire safety products (cavity barriers, firestops, perimeter barriers, and spandrel protection for curtain walling, rainscreen/cladding, masonry, brick slip, interior construction, precast composite, and industrial buildings) and noise control products (acoustic barriers, void barriers, wall linings, and environmental acoustics for HVAC, rail, marine, and industrial applications). The portfolio includes modular systems for different building envelope types and applications, with supporting technical services including BIM specification tools, cut-to-measure fabrication, site support, and training programs. Siderise Lamella represents the company's unique cavity barrier and firestop insulation technology.

Differentiator

Problem solved

Functional benefit

Brands

• Siderise Lamella: Unique cavity barrier and firestop insulation technology developed by Siderise
• Nexus
• Aquafon

Products and services

• CW-FS Firestop and CW-CB Cavity Barrier Firestop and cavity barrier products for curtain walling applications, designed to control the spread of fire and smoke in glazed facade systems. Used by architects, facade engineers, and installers.
• CW-FB Fireboard Spandrel protection fireboard for curtain walling applications. Used by facade contractors and specifiers.
• CW Perimeter Barrier Systems Complete perimeter barrier systems for curtain walling facade applications, providing fire and smoke compartmentation at the slab edge.
• NXS Nexus Fusion Spandrel Infill Panels Spandrel infill panels combining fire protection and thermal performance for glazed facade systems in curtain walling and precast applications.
• Rainscreen Cavity Barrier Systems (RH, RV, CH) Horizontal and vertical open-state and closed-state cavity barriers for ventilated cladding and rainscreen applications. Includes RH Open State Horizontal, RV Vertical, CH Closed State Horizontal variants.
• OSCI Open State Cassette Insert Cassette panel insert for open state rainscreen/cladding applications.
• BB-FB Balcony Bracket Fireboard Fireboard solution for balcony bracket encapsulation, providing fire protection where brackets penetrate the building envelope.
• PC-FS Firestop and PC-CB Cavity Barrier (Precast) Firestop and cavity barrier products for precast concrete cladding applications, inhibiting fire spread in sealed architectural wall systems.
• Masonry Cavity Barrier and Firestop Systems (EW, EWI) Open and closed state cavity barrier and firestop systems for masonry external walls and external wall insulation (EWI) applications.
• CT Cavity Tray Cavity tray solution for moisture management in masonry construction.
• Brick Slip Cavity Barrier Systems (RH, RV) Horizontal and vertical open-state cavity barriers designed for brick slip ventilated facades, delaying flame and heat spread.
• Interior Construction Firestops (RF, TW, TW-P, LGS, FLGS) Cavity barriers and firestops for interior construction applications including raised access floors, tops of walls, profiled decks, and linear gap seals (E120 rated).
• Industrial Cladding Firestops (IC-FS, IC-CB) Firestops and cavity barriers for industrial cladding applications in steel frame structures.
• NXR Nexus Core (OEM Material) OEM material product for specialist fire safety applications and integration by other manufacturers.
• Aquafon Marine Acoustic Solutions Acoustic solution for marine applications providing noise control in vessel construction.
• Curtain Walling Acoustic Solutions (CW-AB, CVB/C10, FIP, MC, MI) Acoustic barrier overlays, cavity barriers, facade interface panels, mullion covers, and mullion/transom acoustic inserts for curtain walling to control sound transmission.
• Acoustic Wall and Ceiling Lining Systems (ALS, WPM, CBX, FLX, WRX) Acoustic lining slabs, wall lining systems, flexible acoustic barriers for suspended ceilings, and window reveal liners for interior acoustic performance.
• Acoustic Barrier Mats and Void Barriers (BM, BM/P10, CVB/LAM, CVB/P10, AVC) Acoustic barrier mats for room-to-room sound reduction and acoustic void barriers for ceiling, floor, and tops of walls applications.
• Environmental and HVAC Acoustic Solutions (NCB, NRB, DWX) Acoustics barriers for fencing, noise reduction barriers for mobile/temporary fencing, and ducting acoustic barriers for HVAC systems.
• Rail Seals and Gaskets Rail-specific acoustic seals and gaskets for noise control in rail infrastructure.
• Cut-Strip Service Pre-cut cavity barriers and firestops made-to-measure and ready-to-install, enabling precise specification compliance for installers and contractors.
• Technical Support Services Technical and specification support services provided by experienced engineers for architects, designers, and specifiers.
• Site Support Services Free industry-leading support for installers and site managers during construction projects.
• Inspection App Digital tool to verify the quality of installations remotely, used by installers and site managers.
• Siderise Academy and CPD Training Online learning portal offering on-demand courses, webinars, and ASFP-recognised CPD modules for architects, specifiers, and installers.
• BIM Objects and NBS Specification Tools 18 BIM objects authored to meet NBS BIM Object Standard requirements, available through NBS Source, NBS Chorus, and bimstore for specification in building information modeling.

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature3 records

Partnerships

Four partnerships are on record, tiered flagship and core.

• Manufacturers' Information Hub (The MIH)flagshipStrategic or Co-development Partner · 6 May 2026Pan-European manufacturer-led system for standardized, interoperable sharing of construction product information. Siderise is participating in the proof-of-concept project supported by UK Research and Innovation. Initiative aims to support 430,000+ construction product manufacturers in Europe.
• NBS (National Building Specification)coreTechnology or IntegrationSiderise partners with NBS to provide BIM objects and product specifications through NBS Source and NBS Chorus platforms. 18 BIM objects authored to meet NBS BIM Object Standard requirements.
• bimstorecoreTechnology or IntegrationSiderise provides free, high-quality BIM content through bimstore for passive fire protection products including masonry, curtain walling, and rainscreen facades.
• UK Research and InnovationcoreStrategic or Co-development PartnerSupporting the Manufacturers' Information Hub proof-of-concept as part of Industrialising and Digitalising Construction Research and Innovation Challenge.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Saint-Gobain: Global building materials group with insulation, gypsum, and facade offerings including fire-rated systems. Competes broadly with Siderise across building envelope applications, especially in Europe where Saint-Gobain has deep specifier relationships.
• Knauf Insulation: Global insulation manufacturer with acoustic and fire-rated product ranges used in building envelopes. Already identified as a Siderise partner (per company data), and competes on acoustic and thermal insulation channels serving the same specifier base.
• Kingspan Group: Large building envelope group with insulation, facade, and growing passive fire protection offerings. Comparable as an incumbent that can bundle cavity barriers and firestops with broader envelope systems, competing with Siderise on large commercial specifications.
• 3M: Diversified manufacturer with a 3M Fire Protection Products / firestop systems line. Overlaps with Siderise in passive fire protection and acoustic materials, with broader portfolio scale and global specification presence.

Direct peers

• Armacell: Manufacturer of flexible elastomeric foam and acoustic insulation products for building, HVAC, and industrial applications. Comparable to Siderise's acoustic barriers, void barriers, and ducting acoustic solutions in building services.
• Rockwool: Global stone wool insulation manufacturer with a significant passive fire protection and facade cavity barrier portfolio. Directly comparable to Siderise in fire-rated cavity barriers and acoustic insulation for building envelopes, with overlapping specifier channels and global reach.
• Tremco CPG: Manufacturer of sealants, firestopping, and building envelope solutions across Europe and globally. Direct overlap with Siderise in firestops, cavity barriers, and weatherproofing products for facades and curtain walling.
• Promat: Specialist passive fire protection manufacturer (part of Etex) producing firestops, fire-resistant boards, and cavity barriers for building envelopes. Closely comparable product set to Siderise, particularly in curtain walling and spandrel protection applications.
• Hilti: Global firestop systems manufacturer with a wide range of tested firestop solutions for construction. Directly competes in firestop and penetration sealing, with comparable specification-led GTM and third-party certification strategy.

Emerging players

• BASF (Master Builders Solutions): Construction chemicals division offering fire protection coatings and sealants. Partial overlap with Siderise's firestop and intumescent-adjacent product categories, with broader portfolio and significant R&D resources.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/i/flow/login?redirect_after_login=%2FSiderise
• Facebookfacebook.com/Siderise.Group
• LinkedInlinkedin.com/company/siderise-group

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Siderise