About First In Service OÜ

◎Our mission

To be a continuously developing, reliable contract manufacturer and heavy engineering subcontractor that delivers precision-welded, machined, and assembled products for the world's most demanding industrial applications — on time, every time.

◈Our vision

To be the first-choice precision manufacturer in Northern Europe for clients who operate in zero-failure environments, recognised for our documented process control, uncompromising quality, and deep industry expertise.

Bring us your toughest tolerances.

Share your technical requirements with our engineers. We'll deliver a firm quote within five working days.

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First In Service in numbers

Experience: Manufacturing since 2002, First In Service OÜ registered 2010

Facility: 18,000 m² single-site workshop, Valukoja 12, Tallinn, Estonia

Maximum product: 35 × 7 × 7 m (L×W×H), 160 tonnes

CNC envelope: Ø 2,700 mm, length 13,000 mm, tolerance ±0.02 mm

Welding: 135/136, TIG, SAW up to 100 mm — EN 3834-2, EN 1090-2

Certifications: ISO 9001, ISO 14001, EN 3834-2, EN 1090-2, PED 2014/68/EU

Surface treatment: Shot-blasting and coating to NORSOK M-501, C5-M

Logistics: Muuga Harbour 20 km, Paldiski Port 60 km, heavy-haul road access

Response: Reply within 1 business day, firm quote within 5 working days

Questions buyers ask

When was First In Service founded?

Manufacturing experience dates from 2002; First In Service OÜ was registered in 2010. The company operates from Valukoja 12, Tallinn, Estonia.

What is First In Service's business model?

A single-site integrated contract manufacturer and heavy engineering subcontractor: fabrication, CNC machining, surface treatment, and assembly in a single building, one contract, and one quality system.

What makes First In Service different from other subcontractors?

Single-point accountability — a single audit visit covers the entire production chain because everything happens in one building — combined with a 160-tonne / 35-metre envelope and port access 20 km away.

Where does First In Service deliver?

Primarily the Nordic countries and Europe: Finland, Sweden, Norway, Denmark, Germany, and the Netherlands, with EU origin simplifying customs and content requirements.

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

2002 Manufacturing since

5 Certifications

18,000 m² workshop area

15+ Industries served

Sectors served

Marine, offshore & subsea

We machine and fabricate parts built to withstand extreme pressures and corrosive marine conditions. From azipod 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