Company lists · Data refreshed September 2026

Top 25 Petrochemical plant construction firms based in Italy

Name: Petrochemical plant construction firms based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 244 companies tracked

RevenueBase identified 244 petrochemical plant construction firms headquartered in Italy as of September 2026 and tracks 15,943 professional contacts across them, including 2,124 with verified work emails. Milano Mi is the largest hub.

This list covers petrochemical plant construction firms headquartered in Italy, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

244Companies

15,943Contacts tracked

2,124Verified emails

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The 25 largest petrochemical plant construction firms based in Italy

Ranked by team size

Top 25 of 244 petrochemical plant construction firms based in Italy, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petrochemical plant construction firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RENCO	Indirect evidence	Pesaro, ItalyHQ checked Sep 17, 2026	1,001-5,000	1,494 contacts →
	Indirect evidence “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Source: RevenueBase Database · checked Sep 17, 2026
2	Irem SPA	Strong evidence	Siracusa, ItalyHQ checked Sep 17, 2026	1,001-5,000	789 contacts →
	Strong evidence “IREM GROUP Provides complete services in the field of Procurement, Detail Engineering, Construction and Maintenance of Industrial Plants.” Source: RevenueBase Database · checked Sep 17, 2026
3	Paresa SPA	Indirect evidence	Cesena, ItalyHQ checked Sep 17, 2026	201-500	229 contacts →
	Indirect evidence “Paresa was established in 1978 with the aim to perform prefabrication activities in its own workshops situated in Gualdo and to develop maintenance activities in refineries and…” Source: RevenueBase Database · checked Sep 17, 2026
4	Fata S.P.A	Indirect evidence	Pianezza, ItalyHQ checked Sep 17, 2026	51-200	204 contacts →
	Indirect evidence “FATA, established in Turin (Italy) in 1936 as a manufacturing facility, is today a leading Engineering Company qualified in the implementation of large and complex industrial…” Source: RevenueBase Database · checked Sep 17, 2026
5	Sime S.R.L	Indirect evidence	Rosignano Solvay, ItalyHQ checked Sep 17, 2026	201-500	199 contacts →
	Indirect evidence “Established in 1989 as an Oil and Gas engineering firm, Sime is now a Group of Companies inspired by its past but future oriented, with special focus on energy transition.” Source: RevenueBase Database · checked Sep 17, 2026
6	Arkad SPA	Indirect evidence	Sesto San Giovanni, ItalyHQ checked Sep 17, 2026	201-500	197 contacts →
	Indirect evidence “We are an Engineering & Contracting Company with a portfolio of almost 60 years of experience and 300 completed projects in more than 30 countries.” Source: RevenueBase Database · checked Sep 17, 2026
7	Fores Engineering	Partial evidence	Forli, ItalyHQ checked Sep 17, 2026	51-200	172 contacts →
	Partial evidence “Fores Engineering is an Italian company, part of the Rosetti Marino Group, specialized in the Engineering, Integration and Construction of turnkey systems for offshore and onshore…” Source: RevenueBase Database · checked Sep 17, 2026
8	Sirio Solutions Engineering SPA SSE SPA	Indirect evidence	Prato, ItalyHQ checked Sep 17, 2026	201-500	159 contacts →
	Indirect evidence “Fox Innovation & Technologies (FOX), a leading provider of advanced technologies aftermarket services and solutions specialized in high-speed rotating equipment announced in May…” Source: RevenueBase Database · checked Sep 17, 2026
9	Tecnomec Engineering SRL	Partial evidence	Taranto, ItalyHQ checked Sep 17, 2026	501-1,000	141 contacts →
	Partial evidence “Tecnomec Engineering develops solutions, products and services for different purposes: Oil & Gas companies, onshore and offshore structures, Petrochemical & Power-Generation…” Source: RevenueBase Database · checked Sep 17, 2026
10	RAM Power S.R.L	Indirect evidence	Ravenna, ItalyHQ checked Sep 17, 2026	201-500	137 contacts →
	Indirect evidence “RAM Power has been established through a team of oil and gas industry experts, all of whom have widespread experience in the field and its ancillary services.” Source: RevenueBase Database · checked Sep 17, 2026
11	Simeco Engineers & Contractors	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	51-200	135 contacts →
	Indirect evidence “SIMECO, established in 1984, has gradually grown up into a leading medium size Engineering and Contracting Company.” Source: RevenueBase Database · checked Sep 17, 2026
12	RAM Energy E&c S.R.L	Indirect evidence	Guasticce, ItalyHQ checked Sep 17, 2026	51-200	100 contacts →
	Indirect evidence “RAM Energy E&C acts as main contractor, EP, EPC and EPCM, meeting the customers’ needs and ensuring the highest quality and safety standards- Engineering: able to develop…” Source: RevenueBase Database · checked Sep 17, 2026
13	Eurotecnica Contractors And Engineers S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “Eurotecnica, part of the Proman family of companies, is the world leader in licensing and designing advanced methods and processes for the production of melamine and carbon black…” Source: RevenueBase Database · checked Sep 17, 2026
14	Telelettra S.R.L	Strong evidence	Terni, ItalyHQ checked Sep 17, 2026	201-500	88 contacts →
	Strong evidence “Telelettra is a company operating since 1968 in the field of industrial plant engineering with many years of experience in the design, construction and maintenance of large plants…” Source: RevenueBase Database · checked Sep 17, 2026
15	Comis S.R.L	Indirect evidence	Pesaro, ItalyHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “Creata nel 1994, Comis s.r.l.” Source: RevenueBase Database · checked Sep 17, 2026
16	Siirtec Nigi	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	201-500	82 contacts →
	Indirect evidence “Siirtec Nigi is an ENGINEERING AND CONTRACTING COMPANY operating internationally in the field of oil and gas treatment sulphur recovery acid gas removal We design and supply…” Source: RevenueBase Database · checked Sep 17, 2026
17	SITIE	Partial evidence	Ferrara, ItalyHQ checked Sep 17, 2026	51-200	76 contacts →
	Partial evidence “Specialists of Engineering, Procurement, Construction, Project Management and Technical Support Activities in the Energy and Oil & Gas sectors.” Source: RevenueBase Database · checked Sep 17, 2026
18	Hysytech S.R.L	Partial evidence	Orbassano, ItalyHQ checked Sep 17, 2026	51-200	64 contacts →
	Partial evidence “Hysytech is an engineering and process equipment construction company established on 2003, in Turin, Italy.” Source: RevenueBase Database · checked Sep 17, 2026
19	Officine RAM Power S.R.L	Indirect evidence	Ravenna, ItalyHQ checked Sep 17, 2026	11-50	61 contacts →
	Indirect evidence “Società specializzata in costruzioni meccaniche ed industriali, prefabbricazione ed assemblaggio strutture e piping, Costruzione di Caldareria, Skid packages, Cabinati packages…” Source: RevenueBase Database · checked Sep 17, 2026
20	Oiltech SRL	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	11-50	54 contacts →
	Indirect evidence “OILTECH is an engineering company specialized in the process design for the Oil & Gas Sector.” Source: RevenueBase Database · checked Sep 17, 2026
21	Sikel Impianti	Indirect evidence	Syracuse, ItalyHQ checked Sep 17, 2026	11-50	48 contacts →
	Indirect evidence “Con una presenza operativa sul campo di oltre 50 anni, Sikel offre servizi di installazione e manutenzione di impianti produttivi, specializzandosi nel settore petrolchimico e…” Source: RevenueBase Database · checked Sep 17, 2026
22	Welding Duebi S.R.L	Indirect evidence	Fiesso Umbertiano, ItalyHQ checked Sep 17, 2026	201-500	44 contacts →
	Indirect evidence “Welding Duebi nasce nel 2002 in provincia di Rovigo, e nel giro di pochi anni si estenda a tal punto da insediarsi su tutto il territorio nazionale, con unità locali nei comuni di…” Source: RevenueBase Database · checked Sep 17, 2026
23	Saipex S.R.L	Indirect evidence	Prato, ItalyHQ checked Sep 17, 2026	11-50	42 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Ferretti Construction	Partial evidence	Lallio, ItalyHQ checked Sep 17, 2026	51-200	41 contacts →
	Partial evidence “Ferretti Construction is a family-run Engineering, Construction and Installation Company with a track record of +100 years in the field of industrial construction.” Source: RevenueBase Database · checked Sep 17, 2026
25	OCIS	Strong evidence	Assago, ItalyHQ checked Sep 17, 2026	51-200	37 contacts →
	Strong evidence “OCIS is a Company of Equans - Group Bouygues - specialized in Engineering, Procurement, Construction and Maintenance of Industrial Plants.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: petrochemical plant construction firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names petrochemical plant construction firms.
Partial evidence: Its own public description names part of petrochemical plant construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petrochemical plant construction firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 244 petrochemical plant construction firms based in Italy

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Petrochemical plant construction firms based in Italy at a glance

As of Sep 17, 2026

13.3%Verified-email coverage

65.3Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · Milano Mi

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

123

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 244 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among petrochemical plant construction firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Italy whose own description of what they do matches “petrochemical plant construction firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names petrochemical plant construction firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among petrochemical plant construction firms, and records with no verified work email. Companies headquartered outside Italy are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,124 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names petrochemical plant construction firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many petrochemical plant construction firms are there based in Italy?

RevenueBase identified 244 petrochemical plant construction firms headquartered in Italy as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

RENCO, headquartered in Pesaro, tops this list with the largest team on record.

Which city has the most petrochemical plant construction firms?

Milano Mi leads with 12 headquartered companies, followed by Milano (10) and Ravenna (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,124 verified decision-maker contacts tracked across these 244 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.