Manufacturing experience since 2002. First In Service OÜ registered in 2010

160 tonnes. 35 metres. 20 km to the ship.

Name: First In Service OÜ
Address: Valukoja 12, Tallinn, 11415, EE
Telephone: +372 501 0136
Price range: $$$$

Heavy fabrication, precision machining and mechanical assembly under one accountable scope. One supplier owns the finished geometry — and the documentation that proves it.

Discuss your specs View our work

First In Service 18,000 m² heavy fabrication and CNC machining workshop in Tallinn

ISO 9001 · EN 3834-2 · PED

2002

Manufacturing since

Certifications

18,000

m² workshop area

15+

Industries served

Our capabilities

What we do

Simplify your supply chain with a flexible, customer-centric manufacturing partner. We adapt our production capacity to your specific timelines, offering three core disciplines under one roof to take your project from raw material to a fully commissioned, ready-to-install system.

References

Challenges conquered across sectors

Delivering heavy welded and machined structures to global industries where failure is not an option. These are our core focus areas — our capabilities extend far beyond to any sector that demands certified precision manufacturing. Figures shown are delivered scope; facility capacity extends to 35 × 7 × 7 m and 160 tonnes.

Why First In Service

We don't just build components. We build certainty.

When late deliveries mean lost revenue and failed parts mean catastrophic downtime, you need a manufacturing partner that leaves nothing to chance.

Quality inspection and precision machining at First In Service

Certifications

Standards we operate by

The highest certifications ensure consistent quality and open doors to regulated industries.

News

Latest updates

Company news, new capabilities, and project milestones.

Bring us your toughest tolerances.

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

Start your project Download capability overview (PDF)

Contact

Get in touch

First In Service OÜ

📍

Office & production

Valukoja 12, 11415 Tallinn, Estonia

📞

Phone+372 501 0136

✉️

Emailinfo@firstinservice.ee

🏢

Registry & VAT

Reg: 11878036 · VAT: EE101344254

Key contacts

🇪🇺 EIS — NextGenerationEU

Send us your drawings

Quotes come back faster when the first email is complete. Send what you have to either of us directly — an engineer replies within one business day, and a firm quote follows within five working days.

Madis Kollo

Head of Sales & Business Development

madis.kollo@firstinservice.ee +372 52 21 325 Book a 20-minute call →

Hanno Saar

Managing Director

hanno@firstinservice.ee +372 501 0136

What to include

Drawings or a 3D model — PDF, STEP, DWG, DXF, IGES
Quantity and whether this is a one-off, batch or series
Material and grade, or the standard it must meet
Tolerance-critical dimensions, if any
Required certification: EN 1090-2, PED, class approval, NORSOK
Target delivery date and destination port

Working under NDA is routine. Ask and we will sign yours before you send anything.

Files too large to email? Say so and we will send a transfer link.

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

Who is First In Service OÜ?

An Estonian contract manufacturer in Tallinn with manufacturing experience since 2002 (company registered 2010), providing heavy fabrication, precision CNC machining, and mechanical assembly from an 18,000 m² single-site facility with 160-ton lifting capacity.

What does First In Service do?

Three integrated services: heavy fabrication and welding (EN 3834-2, EN 1090-2), precision CNC machining to ±0.02 mm, and mechanical assembly with FAT testing — plus PED 2014/68/EU certified pressure equipment.

What industries does First In Service serve?

Marine, offshore and subsea, oil & gas, defence, energy and rotating equipment, mining, pulp & paper, and other heavy process industries — over 15 sectors in total.

Where is First In Service located?

Valukoja 12, 11415 Tallinn, Estonia — 20 km from Muuga Harbour and 60 km from Paldiski Port, with direct heavy-haul road access for oversized components up to 160 tonnes.

What is the maximum product size First In Service can manufacture?

Up to 35×7×7 metres (length × width × height) and 160 tonnes.

How quickly does First In Service provide a quotation?

An engineer replies within 1 business day, and a firm quote follows within five working days of receiving complete technical specifications.

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

What we do

Sheet metal, heavy fabrication & welding

Eliminate structural weak points with certified precision. Operating across an 18,000 m² workshop area, we deliver heavy fabricated products up to 35×7×7 m (L×W×H) and 160 tonnes. Quality is verified through full material traceability and NDT (VT, PT, MT, UT) by certified partners. Backed by EN 3834-2 and EN 1090-2 certifications, our welders utilise processes including 135/136, TIG, and SAW (up to 100 mm).

Precision CNC machining & turning

Tolerances down to ±0.02 mm, built to perform flawlessly under extreme stress. First In Service's machine park handles heavy components, long shafts, and complex geometries — turning and milling parts up to Ø 2,700 mm, 13,000 mm in length, and 4,500 mm in height. Powered by heavy-duty FERMAT boring mills (X: 13,500 mm, Y: 4,000 mm), vertical turning lathes (up to Ø 2,700 mm), and horizontal lathes (up to 3,250 mm).

Complex assemblies & mechanical integration

Plug-and-play delivery. We hand over working systems, not just a box of parts. First In Service delivers complex assemblies and fully FAT-tested modules for demanding industrial applications. From precision bearing installations to fully commissioned units, we assemble, verify, and deliver with full documentation.

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

160 tonnes. 35 metres. 20 km to the ship.

What we do

Services

Challenges conquered across sectors

We don't just build components. We build certainty.

Why buyers choose us

Standards we operate by

Latest updates

News

Bring us your toughest tolerances.

Get in touch

First In Service OÜ

Key contacts

Contacts

Send us your drawings

What to include

First In Service in numbers

Questions buyers ask

Who is First In Service OÜ?

What does First In Service do?

What industries does First In Service serve?

Where is First In Service located?

What is the maximum product size First In Service can manufacture?

How quickly does First In Service provide a quotation?

In brief

At a glance

What we do

Sectors served

Why buyers choose us