ALTEM

What ALTEM does

ALTEM s.r.l. is a privately held Italian industrial mechanical services company founded in 2005 and headquartered in Rescaldina, Milano. It operates three integrated service lines: (1) construction of industrial products and turnkey plants — including skid systems, sealing systems, water and air coolers, pipe assemblies, metal structures, lube oil systems, boilers, filters, and tanks — manufactured at its 2,500+ sqm facility equipped with four cranes of 15-20 ton capacity; (2) industrial plant maintenance covering scheduled, cyclical, and revamping interventions performed on-site at client facilities; and (3) mechanical and electrical engineering design services delivering GA drawings, isometric drawings, 3D models, BOMs, and full technical documentation. The company's underlying technology stack is rooted in qualified welding (TIG, MIG, MAG) on carbon, stainless (AISI 304-316), and alloy steels, combined with deep familiarity with international standards (PED, ATEX, NEC, IEC/EN, ASME, UNI, API) and major EPC specifications (SAIPEM, Foster Wheeler, Saudi Aramco, ENI, Technimont).

The business model is project-based B2B with custom quote-based pricing and multi-year contract cadence. ALTEM sells primarily through direct enterprise relationships to chemical, petrochemical, oil & gas, energy, pharmaceutical, food, environmental, textile, and steel sector clients. Revenue is generated via one-time construction contracts (skids, pressure equipment, pipe assemblies, metal structures) and recurring professional services for maintenance and engineering design. The firm operates with 30+ qualified workers, including 6 certified welders, supported by technical staff.

ALTEM holds UNI EN ISO 9001:2008 and UNI EN 1090-1:2009 + A1:2011 certifications, and is PED-compliant for pressure equipment. Its primary client base is concentrated among a small number of large EPC contractors and energy majors. The company is founder/management owned with no disclosed external private equity or venture capital backing, and operates from a single Italian site while servicing international projects through EPC subcontracting.

Name

ALTEM

Legal name

ALTEM s.r.l.

Website

https://altem.it

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

ALTEM s.r.l. is an Italian industrial mechanical services firm that designs, fabricates, and maintains turnkey plants and equipment for chemical, petrochemical, oil & gas, and energy sector clients from its Rescaldina, Milano facility.

Ownership category

akta.pro rank

Product category

Industrial Plant Construction and Maintenance Services

NAICS

Industrial Machinery Manufacturing (3332), Machine Shops (332710)

SIC

Fabricated Plate Work (Boiler Shops) (3443), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)

akta.pro secondary industries

Process Skids & Modular Process Systems (Packaged Units) (IMAHAEAH), Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF), Tank, Vessel & Pipeline Inspection/Cleaning/Repair (API/ASME) (IMAIACAH)

Keywords

• Industrial plant construction
• Mechanical fabrication
• Plant maintenance services
• Pressure equipment manufacturing
• Welding services

Headquarters

HQ city

Rescaldina

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Industrial Plant Construction Services: One-time project-based revenue from construction of industrial products and turnkey plants including skid systems, pressure equipment, pipe assemblies, and metal structures. Revenue is generated through custom work orders tailored to client specifications.
2. Industrial Maintenance Services: Scheduled and unscheduled maintenance services for industrial plants, including revamping activities, programmed maintenance, cyclical maintenance, and quality verification. Revenue generated through service contracts and work orders.
3. Mechanical and Electrical Engineering Services: Engineering design services for chemical, petrochemical, gas, energy, and pharmaceutical sectors, including specification analysis, instrument identification, and technical document preparation.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

ALTEM constructs and maintains industrial plants for the chemical, petrochemical, oil & gas, energy, and pharmaceutical sectors. The company provides turnkey solutions covering engineering design, fabrication of industrial products (skid systems, piping, metal structures, boilers, tanks, filters), on-site installation, and scheduled/unscheduled plant maintenance. All work is executed in compliance with international standards (PED, ATEX, ASME, API, UNI) using qualified welders at its 2,500+ sqm manufacturing facility in Rescaldina, Italy.

Product overview

ALTEM is an Italian industrial mechanical services company offering three integrated service areas: (1) Construction of industrial products and plants including skid systems, sealing systems, water/air coolers, pipe assembly, metal structures, lube oil systems, boilers, filters, and tanks manufactured in their 2,500+ sqm facility with 4 cranes (15-20 ton capacity) and qualified welders; (2) Industrial plant maintenance including scheduled, cyclical, and revamping services performed on-site at client facilities; and (3) Mechanical and electrical engineering services covering design, technical documentation, 3D modeling, and project management for chemical, petrochemical, pharmaceutical, and energy sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Industrial Products and Plant Construction Custom manufacturing and assembly of industrial products and turnkey plants including skid systems, sealing systems, water and air coolers, pipe assemblies, metal structures, lube oil systems, water tube boilers, filters, and tanks. Manufactured in a 2,500+ sqm industrial facility with 4 cranes (15-20 ton capacity) and 6 qualified welders for clients in chemical, petrochemical, oil & gas, energy, and pharmaceutical sectors.
• Industrial Plant Maintenance Services Scheduled, cyclical, and revamping maintenance services for industrial plants performed at client facilities. Includes programmed maintenance, quality verification, ordinary and extraordinary maintenance, machinery and equipment handling, and shutdown/turnaround support for chemical, petrochemical, oil & gas, and energy sector clients.
• Mechanical and Electrical Engineering Services Engineering design services covering chemical, petrochemical, gas, energy, and pharmaceutical sectors, including specification analysis, international standard evaluation, instrument identification, and preparation of GA drawings, isometric drawings, 3D models, BOMs, detailed drawings, instrument lists, datasheets, and final documentation. Compliance with PED, ATEX, NEC, IEC/EN standards and major EPC specifications (SAIPEM, Foster Wheeler, Saudi Aramco, ENI, Technimont).

Quantifiable outcome

• More than 2,500 sqm of industrial manufacturing area
• +2 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• External Engineering PartnerscoreImplementation/ SI/ Consulting PartnerALTEM collaborates with important external engineering partners and companies to ensure comprehensive project design and work planning. These partnerships enable the company to guarantee any type of structural design and project planning for industrial plant construction.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• SPX Technologies (Heat Transfer): Global manufacturer of heat exchangers, cooling systems, and process equipment for power, petrochemical, and industrial markets. Overlaps with ALTEM on water/air coolers and process skid offerings but as part of a much broader portfolio.
• Técnicas Reunidas: Spanish EPC contractor executing turnkey refinery, petrochemical, and energy projects globally. Comparable to ALTEM's client base (large End-Users and EPCs) and the standards-driven, multi-discipline plant construction scope.
• Sulzer Ltd. Swiss-headquartered industrial engineering company supplying pumps, process equipment, and rotating machinery to chemical and petrochemical operators. Comparable to ALTEM's customer base and process-equipment scope, though at substantially larger scale.
• Bonatti S.p.A. Italian general contractor executing pipelines, mechanical, and electrical works for oil & gas and power projects. Comparable to ALTEM on industrial plant construction in the same Italian/European EPC ecosystem, but with broader general-contractor scope.
• Babcock & Wilcox Enterprises: Global manufacturer of boilers, heat recovery steam generators, and environmental equipment for power and industrial applications. Comparable to ALTEM's boiler construction line, though at vastly greater scale and geographic reach.

Direct peers

• Walter Tosto S.p.A. Italian manufacturer of pressure vessels, columns, and process equipment for chemical, petrochemical, and power applications. Directly comparable to ALTEM on fabrication scope (PED/ASME vessels, skid packages) and target verticals.
• CIMI Engineering S.r.l. Italian mechanical contractor providing piping fabrication, modular skid assembly, and plant maintenance to oil & gas, petrochemical, and power clients. Closely matches ALTEM's welding-driven fabrication and on-site maintenance offering.
• Hamon S.A. European engineering group specializing in cooling systems, heat exchangers, and air quality equipment for power and process industries. Comparable to ALTEM on water/air cooler fabrication and petrochemical/power end markets.
• Belleli S.p.A. Italian fabricator of pressure vessels, heat exchangers, and process equipment serving petrochemical and energy clients. Highly comparable to ALTEM in terms of Italian base, customer overlap in oil & gas and chemical sectors, and pressure-equipment fabrication capabilities.
• Sofinter S.p.A. Italian industrial group active in boiler manufacturing (Babcock Wanson, Ansaldo Energia participation) and environmental equipment. Comparable to ALTEM on boiler fabrication and process equipment for industrial/energy clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/altem-s-r-l

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about ALTEM