What Temet Oy does

Temet Oy, operating under parent entity Temet Group Oy, is a Helsinki-based Finnish specialist engineering company founded in 1953 that develops, manufactures, and supplies blast protection and CBRN (Chemical, Biological, Radiological, Nuclear) filtration systems for civil defense shelters, military facilities, and industrial hardened structures. The company operates through two wholly owned divisions, Temet International and Temet Finland, and sells a catalog of hardware products including ESV and PSV blast valves, SL and SO blast doors and hatches, complete CBRN filtration units, regenerative CO2 removal systems, ground shock isolation technology, oxygen supply units, and shelter accessories (airlock tents, dry toilets, bunk beds, water tanks). Underlying technology is mechanical and process-engineering in nature: double-action self-actuating valves, multi-stage filtration certified to 99.99% particle separation under SFS 5332, and Building Management System-integrated shelter automation, all backed by patents and ISO 9001/14001/3834-2 certifications.

Temet generates revenue through four streams: hardware sales (the largest by product volume), design and consulting services (threat analysis, shelter design, CAD documentation), installation and commissioning, and recurring maintenance and inspection services under multi-year contracts. Pricing is custom and project-based with no public price list. The go-to-market combines direct enterprise field sales via regional sales directors covering MENA, Asia Pacific, Europe, America, Nordics, and Baltics, plus a network of country-specific representatives and resellers in over 30 countries that also act as local data controllers. Marketing relies on diplomatic channels (state visits, trade missions), industry conferences (European Economic Congress), and earned media coverage. The company reports 50,000+ completed shelter projects across 85+ countries over its 70-year history and currently employs approximately 100 specialists, with the Väistö family holding multiple board seats indicating continued family ownership or control.

Name

Temet Oy

Legal name

Temet Group Oy

Website

https://temet.com

Company type

Private

Founded year

1953

Operating status

Operating

Headcount range

51–100 employees

Short description

Temet Oy is a Finnish specialist engineering firm founded in 1953 that designs and manufactures blast protection, CBRN filtration, and shelter ventilation systems for civil defense, military, and industrial clients across 85+ countries, serving governments, defense forces, and critical infrastructure operators.

Ownership category

akta.pro rank

Product category

Blast and CBRN Protection Systems

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Security Systems Services (56162)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Process Safety & Relief Systems (Flare Systems, PRVs, Explosion Protection) (IMAHAEAL)

akta.pro secondary industry

Fire & Smoke Dampers / Firestopping / Passive Fire Protection Services (BPABAHAE)

Keywords

• Blast protection systems
• CBRN filtration equipment
• Civil defense shelters
• Protective shelter technology
• Shelter ventilation systems

Headquarters

HQ city

Helsinki

HQ country

Finland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Protective Equipment Sales: Sale of blast doors, blast valves, CBRN filters, wall sleeves, shelter accessories and other protective equipment components
2. Design, Consulting & Professional Services: Expert consultation, shelter design support, threat analysis, national standards guidance, and project management services
3. Installation & Commissioning: Site inspection, equipment installation, tightness testing, commissioning and training services
4. Maintenance & Inspection Services: Statutory inspections, preventive and corrective maintenance, periodic testing, and maintenance training

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Temet Oy designs, manufactures, and supplies blast protection hardware (blast doors, hatches, valves, dampers), CBRN filtration and ventilation systems, ground shock isolation, and shelter life-support equipment for civil defense, military, and critical infrastructure shelters. The company also delivers full lifecycle services — design, consulting, installation, commissioning, inspection, maintenance, and refurbishment — for hardened facilities and residential shelters.

Product overview

Temet Oy is a global leader in protective shelter technology offering a comprehensive portfolio of blast and CBRN protection solutions. The company's product portfolio consists of hardware-based protective equipment organized into two main categories: Core Products (blast doors, blast valves, CBRN filtration systems, and shelter accessories) and Services (design, maintenance, and automation). Core products include Custom Blast Doors, SL/SO Blast Hatches, and various blast valves (ESV, HV, PSV, PV-KK, PVD, YV series) for air intake, exhaust, and overpressure control. The CBRN filtration lineup includes Complete CBRN Systems, ESL-150 units, Regenerative CO2 Removal, ES-series filters, pre-filters, and oxygen supply units. Shelter accessories encompass ground shock isolation, airlock tents, dry toilet systems, bunk beds, and water storage tanks. Services cover the full lifecycle from residential and critical infrastructure shelter design/consultation through industrial blast protection, shelter automation (partial to fully automated), and ongoing maintenance. All products are designed to protect human lives and critical infrastructure from explosions, CBRN threats, and related hazards.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Blast Doors Engineered-to-order blast-resistant doors designed for shelter envelopes and hardened facilities; specified for civil defense, military, and critical infrastructure customers.
• SL Blast Hatches Blast hatches in the SL series, providing blast-protected access openings in shelter envelopes for civil defense and military applications.
• SO Blast Doors Blast-resistant doors in the SO series for shelter envelopes and hardened facilities; engineered for civil defense and military customers.
• ESV Blast Valves Proprietary blast valves in the ESV series that relieve overpressure in shelter envelopes while maintaining CBRN tightness; intended for shelter and hardened-facility operators.
• HV Industrial Blast Dampers HV-series industrial blast dampers designed for blast protection of ventilation openings in industrial facilities such as control rooms and safe havens.
• PSV Blast Valves PSV-series blast valves for pressure relief in shelter ventilation systems, applied in civil defense and military shelter envelopes.
• PV-KK Blast Valves PV-KK-series blast valves designed for shelter applications requiring pressure relief while maintaining ventilation function.
• PVD Hot Exhaust Blast Valves Hot exhaust blast valves in the PVD series for shelter generator exhaust systems where hot gases must be safely vented under blast conditions.
• PVD-VP Exhaust Ventilation Blast Valves PVD-VP-series exhaust ventilation blast valves for shelter ventilation systems requiring blast protection on exhaust air paths.
• YV Overpressure Valves YV-series overpressure valves for controlled overpressure maintenance in CBRN-protected shelters and hardened facilities.
• Gastight Closing Valves Gastight closing valves used to isolate sections of shelter ventilation piping to maintain CBRN integrity.
• LP-Series Wall Sleeves LP-series wall sleeves providing gastight penetrations through shelter walls for piping, cabling, and ducting.
• Complete CBRN Systems Integrated CBRN protection packages combining filtration, overpressure, valves, and controls to deliver complete CBRN shelter capability for defense and civil defense customers.
• ESL-150 CBRN Systems Compact ESL-150 CBRN filtration systems sized for small shelters and protected spaces where footprint is constrained.
• Regenerative Carbon Dioxide Removal Regenerative carbon dioxide removal units used in sealed shelters to maintain breathable atmospheres during extended occupation.
• CBRN Filters ES-series ES-series CBRN filters combining particulate and gas filtration stages for shelter air supply systems.
• ESIS-9000 Pre-filter ESIS-9000 pre-filter used upstream of CBRN filters to extend service life by removing coarse particulates.
• LKJ-O2 Oxygen Supply Unit LKJ-O2 oxygen supply unit supplying breathing oxygen for occupants of sealed CBRN shelters.
• Overpressure Meter YM-3 YM-3 overpressure meter for monitoring shelter internal overpressure, a key parameter for CBRN protection verification.
• Ground Shock Isolation Ground shock isolation systems that decouple shelter structures from blast- or seismic-induced ground motion to protect occupants and equipment.
• Airlock Tent ST-1 ST-1 airlock tent providing a sealed transition space at shelter entry points to maintain CBRN overpressure.
• Dry Toilet Cabin KH-3 KH-3 dry toilet cabin for use in sealed shelters where water-based sanitation is unavailable.
• Dry Toilet KK-3 KK-3 dry toilet unit for shelter sanitation in CBRN-protected environments.
• Shelter Bunk Bed VV-3 VV-3 shelter bunk bed providing sleeping accommodations inside protected shelters.
• Water Storage Tank VS-3 VS-3 water storage tank for shelter water supply during extended occupation.
• Shelter Automation Systems Automation and control systems that integrate CBRN filtration, overpressure, valves, and life-support equipment into a managed shelter environment.
• Residential Shelters Service Inspection, maintenance, and refurbishment services for private residential shelters in Finland, supporting owners in meeting shelter compliance obligations.
• Design and Consultation Service Engineering design and consulting services supporting construction firms and shelter operators in specifying blast and CBRN protection.
• Installation and Commissioning Service On-site installation and commissioning of Temet's blast protection, CBRN filtration, and shelter equipment for new build and refurbishment projects.
• Maintenance and Inspection Service Scheduled and corrective maintenance and inspection services for installed blast valves, CBRN filters, shelter automation, and life-support equipment.
• Industrial Blast Protection Service Specialized blast protection solutions and services for industrial customers such as nuclear power plants and oil refineries.
• Critical Infrastructure Protection Service

Quantifiable outcome

• 99.99% minimum particle separation efficiency tested per SFS 5332 standard for CBRN filters
• +1 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Metropolia University of Applied SciencescoreStrategic or Co-development Partner · 20 May 2026Collaboration to strengthen critical infrastructure expertise. Partnership focuses on knowledge development and expertise sharing in protection technology and civil defense solutions.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Drägerwerk: German safety technology group manufacturing respiratory protection, gas detection, and CBRN filters. Directly comparable to Temet's CBRN filtration line, with overlapping military and civil defense customer base across Europe and MENA.
• Avon Protection: UK/US-headquartered provider of CBRN respiratory protection, helmets, and protective equipment to military and first responders. Comparable in CBRN filtration technology and military/government end markets.
• HDT Global: US manufacturer of military shelters, CBRN collective protection systems, and expeditionary structures. Closest US analog to Temet's hardened shelter and CBRN offering for defense forces.
• Weatherhaven: Canadian supplier of deployable, soft-wall, and hard-wall shelters to military and humanitarian customers. Comparable in modular shelter design and international defense/government sales motion.
• Alaska Structures: US-based manufacturer of engineered fabric and rigid shelter systems for military, government, and commercial customers. Comparable in custom engineered protective structures and global defense/government sales.
• Rubb Buildings: Norway-based manufacturer of relocatable, insulated, and military-spec membrane and steel buildings. Comparable in custom engineered shelter structures for defense and government customers across Northern Europe.

Broad incumbents

• MSA Safety: US safety equipment conglomerate with a meaningful CBRN and respiratory protection franchise (including the MSA Sordin and G1 SCBA lines). Overlaps with Temet's CBRN filtration and gas protection but at much broader industrial scale.
• Honeywell International: Diversified industrial conglomerate offering CBRN/respiratory protection, gas detection, and building safety systems through its Safety and Productivity Solutions segment. Competes with Temet in shelter filtration and gas detection for critical infrastructure.
• Camfil: Swedish global leader in air filtration for commercial, industrial, and cleanroom applications. Comparable in CBRN-grade filtration technology and engineering, though primarily serving HVAC and cleanroom markets rather than civil defense.
• Donaldson Company: US filtration manufacturer serving industrial, gas turbine, and defense markets. Adjacent to Temet's CBRN filtration technology via its defense and industrial gas-phase filtration business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCw6tEoSblsW1iozTXimrKTw
• LinkedInlinkedin.com/company/temet-oy

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Temet Oy