Our work

Work delivered across demanding industries

First In Service has delivered welded and machined components to marine and offshore, oil and gas, energy, defence, mining and pulp and paper customers since 2002. Delivered scope ranges from 10 kg balanced rotors to 50,000 kg marine structures, in carbon steel, stainless, duplex, super duplex, Inconel and titanium, all from one 18,000 m² site in Tallinn.

Projects by industry

Marine, offshore & subsea

Marine, offshore & subsea

We machine and fabricate parts for high pressures and corrosive marine conditions, from podded propulsion components to structural elements for offshore platforms. Fabrication, machining and corrosion protection are all done in-house, so the coating is never 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
Marine, offshore & subsea →
Oil & gas / process equipment

Oil & gas / process equipment

We manufacture certified pressure vessels, tanks, piping modules and skids in 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
Oil & gas →
Rotating parts & shafts

Rotating parts & shafts

Made to drawing for pumps, compressors, fans, turbines and power generation: impellers up to Ø 4,000 mm, rotors, shafts up to 3,250 mm, casings, and fan and blower components. Welded parts are stress-relieved, and rotating parts are dynamically balanced in the same order.

Weight: 10 kg – 5,000 kg
Envelope: Ø 500 – Ø 4,000 mm
Balancing: Up to Ø 4,000 mm and 4,000 kg
Materials: Carbon steel, stainless steel, duplex / super duplex, titanium
Inspection: VT, PT, MT, RT
Rotating parts & shafts →
Pulp & paper machinery

Pulp & paper machinery

Precision spare parts and critical process components for mills in continuous production. Our priority is fast, reliable manufacturing that keeps your downtime short.

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
Pulp & paper →
Mining & machine building

Mining & machine building

Heavy machine-building assemblies for the mining sector, precision-machined from wear-resistant materials for high-impact, abrasive service.

Components: Machine assemblies, structural frames, conveyor elements
Materials: Hardened and wear-resistant steels
Conditions: High-impact, abrasive environments
Inspection: VT, PT, MT
Mining & machine building →
Defence

Defence

Precision manufacturing of regulated, mission-critical defence components, with 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
Defence →
Proof, in writing

Every claim below is marked by how you can verify it.

We label our proof the way we label our welds: by what can be checked. Verifiable means you can confirm it independently today. Documented means the paperwork exists and ships with the parts. Under NDA means the client name is protected, but the scope, documentation, and duration are real and can be discussed in a call.

VERIFIABLE

Certifications & audited quality systems

ISO 9001, ISO 14001, EN ISO 3834-2, EN 1090-2 and PED 2014/68/EU. Certificates are published on our certifications page with issuing bodies and validity dates; check them against the registries directly.

VERIFIABLE

Facility, envelope & logistics

18,000 m² single-site workshop at Valukoja 12, Tallinn. 160-tonne lifting capacity, products up to 35 × 7 × 7 m. 20 km from Muuga Harbour, 60 km from Paldiski Port, with direct heavy-haul road access. Visit us and measure it: one audit covers the entire production chain, because everything happens in one building.

DOCUMENTED

What ships with every delivery

Material certificates to EN 10204 3.1 (3.2 on request), NDT reports (VT, PT, MT, UT) performed by certified partners, dimensional inspection logs, and FAT protocols where scope requires. The Manufacturing Data Record is part of the product, not an extra.

VERIFIABLE

Publicly documented project: Planlogi digital waybill integration

Full digitalisation of freight documentation with the Planlogi e-waybill platform, supported by the EU NextGenerationEU Recovery Fund: a publicly funded, publicly documented project. Details on our news page.

UNDER NDA

Delivery programmes: client names protected

Most of our work runs under confidentiality agreements with Nordic and European OEMs. We can discuss anonymised programme scope (sector, component type, materials, documentation package and programme duration) in a direct conversation. Ask us in your RFQ.

Bring us your toughest tolerances.

Share your technical requirements with our engineers. We will send a firm quote within five working days.

Start your projectDownload capability overview (PDF)
At a glance

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 ISO 3834-2, EN 1090-2
Certifications: ISO 9001, ISO 14001, EN ISO 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 working day, firm quote within 5 working days
FAQ

Questions buyers ask

What industries has First In Service delivered to?

Marine, offshore and subsea, oil & gas, defence, energy and rotating equipment, mining and machine building, and pulp & paper.

Can First In Service provide client references?

Most delivery programmes run under NDAs with Nordic and European OEMs, so client names are protected. Anonymised programme scope (sector, component type, materials, documentation, duration) can be discussed in a direct conversation.

What proof of quality does First In Service offer?

Proof labelled by how it can be checked: independently verifiable certifications and facility facts, documented Manufacturing Data Records shipped with every delivery, and the publicly documented EU-funded Planlogi digitalisation project.

Does First In Service work with classification societies?

Yes: DNV, Lloyd's Register, Bureau Veritas and RINA, with the survey and documentation scope defined per project.

In brief

160 tonnes. 35 metres. 20 km to the ship. Heavy fabrication, precision machining and mechanical assembly under a single contract. One supplier is responsible for the finished geometry and for the documentation that proves it.

At a glance

Sectors served

Marine, offshore & subsea
We machine and fabricate parts for high pressures and corrosive marine conditions, from podded propulsion components to structural elements for offshore platforms. Fabrication, machining and corrosion protection are all done in-house, so the coating is never 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
We manufacture certified pressure vessels, tanks, piping modules and skids in 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 parts & shafts
Made to drawing for pumps, compressors, fans, turbines and power generation: impellers up to Ø 4,000 mm, rotors, shafts up to 3,250 mm, casings, and fan and blower components. Welded parts are stress-relieved, and rotating parts are dynamically balanced in the same order. Weight: 10 kg – 5,000 kg. Envelope: Ø 500 – Ø 4,000 mm. Balancing: Up to Ø 4,000 mm and 4,000 kg. Materials: Carbon steel, stainless steel, duplex / super duplex, titanium. Inspection: VT, PT, MT, RT.
Pulp & paper machinery
Precision spare parts and critical process components for mills in continuous production. Our priority is fast, reliable manufacturing that keeps your downtime short. 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 machine-building assemblies for the mining sector, precision-machined from wear-resistant materials for high-impact, abrasive service. 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 regulated, mission-critical defence components, with 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

Proven in demanding sectors
We are a specialised contract manufacturer and heavy engineering subcontractor delivering precision-welded, machined, and assembled products for demanding industrial applications.
Early DFM review
Before we build to print, our production engineers carry out a Design for Manufacturability (DFM) review to find potential failure points, optimise welding sequences and reduce your overall manufacturing cost.
Certified quality systems
Our operations are certified to ISO 9001, ISO 14001, EN ISO 3834-2 and EN 1090-2, and our documentation complies with PED.
Full material traceability
We guarantee full material traceability from prototype to series production. Weld integrity is verified by NDT (VT, PT, MT, UT) carried out by certified partners.
Scale and lifting capacity
With 18,000 m² of floor space and lifting capacity up to 160 tonnes, we can scale resources to your project timeline and handle very large components.
Heavy-haul port access
Our Tallinn site is 20 km from Muuga Harbour and 60 km from Paldiski Port, with direct heavy-haul road access that avoids city traffic. Oversized components up to 160 tonnes ship roll-on/roll-off to Europe and the Nordics.
Environmental responsibility
Waste, chemical safety and emissions are actively managed as part of our ISO 14001-certified operations.