Defence

Defence Manufacturing

First In Service manufactures mission-critical precision components for the defence sector from Tallinn, Estonia, with full material traceability, strict quality control and documentation to defence specifications. The company is a member of the Estonian Defence and Aerospace Industry Association and works to ISO 9001, EN 1090-2 and EN ISO 3834-2.

Origin and traceability

Supply-chain origin is now part of the specification.

Defence procurement has changed. Where a component is made, who owns the plant, and whether the chain of custody survives an audit are no longer administrative details — they are qualification criteria. A supplier who cannot evidence origin and traceability is a supplier who cannot be used, whatever the price or the tolerance.

What we deliver

EU and NATO-country manufacture, one facility, full traceability.

First In Service manufactures in Tallinn, Estonia — EU member state, NATO member, and 20 km from a deep-water port. Every component is traceable by heat number from material receipt to final inspection, and because fabrication, machining, surface treatment and assembly all happen inside one 18,000 m² building, the chain of custody never leaves our control or our documentation system.

Typical scope

Precision components: Machined to ±0.02 mm in steel, stainless, specialty alloys
Heavy structures: Welded assemblies to 35×7×7 m and 160 tonnes
Assemblies: Mechanical, hydraulic and electrical integration with FAT

Quality & traceability

Systems: ISO 9001, ISO 14001, EN ISO 3834-2, EN 1090-2
Material: EN 10204 3.1 standard, 3.2 on request, heat-number tracked
NDT: VT, PT, MT, UT via certified partners
Confidentiality: NDA before drawing transfer as standard

Supply-chain position

Origin: EU (Estonia) — EU and NATO member state
Single site: One audit covers the entire production chain
Logistics: 20 km Muuga Harbour, 60 km Paldiski Port, heavy-haul road access
Capabilities used

What this work runs on.

Heavy Fabrication

Up to 35×7×7 m and 160 tonnes. EN ISO 3834-2, EN 1090-2.

Full spec →

CNC Machining

Ø 2,700 mm, 13,000 mm length, ±0.02 mm.

Full spec →

Assembly & FAT

Commissioned units with full Manufacturing Data Record.

Full spec →
Specifications

Specifications at a glance

Defence component manufacturing specifications — First In Service OÜ, Tallinn, Estonia
Precision componentsMachined to ±0.02 mm in steel, stainless, specialty alloys
Heavy structuresWelded assemblies to 35×7×7 m and 160 tonnes
AssembliesMechanical, hydraulic and electrical integration with FAT
SystemsISO 9001, ISO 14001, EN ISO 3834-2, EN 1090-2
MaterialEN 10204 3.1 standard, 3.2 on request, heat-number tracked
NDTVT, PT, MT, UT via certified partners
ConfidentialityNDA before drawing transfer as standard
OriginEU (Estonia) — EU and NATO member state
Single siteOne audit covers the entire production chain
Logistics20 km Muuga Harbour, 60 km Paldiski Port, heavy-haul road access
FAQ

Questions defence buyers ask

Does First In Service manufacture defence components?

We manufacture precision-machined and heavy fabricated components for defence applications under full material traceability and documented quality control, to ISO 9001, EN ISO 3834-2 and EN 1090-2.

Is First In Service an EU and NATO-country supplier?

First In Service OÜ manufactures in Tallinn, Estonia — an EU member state and NATO member, which simplifies origin, content and supply-chain security requirements for European defence programmes.

What traceability is provided for defence work?

Full heat-number traceability from material receipt through cutting, welding, machining and inspection, with EN 10204 3.1 or 3.2 certificates and complete dimensional records.

What is the maximum size for defence structures?

Up to 35×7×7 metres and 160 tonnes fabricated, with machining to Ø 2,700 mm and ±0.02 mm.

Will First In Service sign an NDA before receiving drawings?

Yes. Confidentiality agreements are standard for this scope and can be in place before any technical material is transferred.

Membership

Represented in the Estonian defence industry

First In Service is a member of the Estonian Defence and Aerospace Industry Association, the body representing over 200 Estonian defence, space and security companies. Manufacture takes place in an EU and NATO member state, with full material traceability to EN 10204 3.1 and 3.2 and documented weld procedure qualification.

The next step is a drawing, not a meeting.

Send your drawings and specifications. An engineer replies within 1 business day and a firm quote follows within 5 working days.

Request a quoteDownload capability overview (PDF)

In brief

160 tonnes. 35 metres. 20 km to the ship. Heavy fabrication, precision machining and mechanical assembly under one accountable scope. One supplier owns the finished geometry — and the documentation that proves it.

At a glance

Sectors served

Marine, offshore & subsea
We machine and fabricate parts built to withstand extreme pressures and corrosive marine conditions. From podded propulsion components to structural elements for offshore platforms. Fabrication, machining and corrosion protection are all carried out in-house — the coating is not handed to a third party. Weight: 100 kg – 50,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Marine-grade steels, carbon steel, stainless steel, duplex / super duplex. Surface treatment: NORSOK M-501 and C5-M, applied in-house. Class approvals: DNV, Lloyd's Register, Bureau Veritas, RINA — scope per project. Inspection: VT, PT, MT, RT.
Oil & gas / process equipment
Built to safely contain and control extreme industrial forces. We manufacture certified pressure vessels, tanks, piping modules, and skids, ensuring strict compliance with PED and international safety standards. Design: EN 13445 / PED 2014/68/EU. Weight: 200 kg – 25,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Carbon steel, stainless steel, duplex, super duplex. Inspection: VT, PT, MT, RT.
Rotating equipment & energy
Custom-manufactured components for the energy and power generation sectors, including dynamically balanced impellers, casings, rotors, and shaft systems, alongside critical fan and blower components. Weight: 10 kg – 5,000 kg. Envelope: Ø500 – Ø4,000 mm. Balancing: Up to Ø4,000 mm. Materials: Carbon steel, stainless steel, duplex / super duplex, titanium. Inspection: VT, PT, MT, RT.
Pulp & paper machinery
Precision spare parts and critical processing components for continuous production environments. Our priority is minimising your downtime through rapid, reliable manufacturing. Design: EN 13445 / PED 2014/68/EU. Weight: 200 kg – 25,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Carbon steel, stainless steel, duplex. Inspection: VT, PT, MT, RT.
Mining & machine building
Heavy-duty machine building assemblies engineered for extreme conditions, using wear-resistant materials precision-machined to withstand high-impact, abrasive environments in the mining sector. Components: Machine assemblies, structural frames, conveyor elements. Materials: Hardened and wear-resistant steels. Conditions: High-impact, abrasive environments. Inspection: VT, PT, MT.
Defence
Precision manufacturing of highly regulated, mission-critical components for the defence sector. Full traceability, strict quality control, and compliance with defence industry specifications. Focus: Mission-critical precision components. Requirements: Full traceability, strict QC, defence specifications. Capabilities: Welding, machining, assembly to military standards.

Why buyers choose us