Company lists · Data refreshed September 2026

Top 25 Refinery engineering firms based in Germany

Name: Refinery engineering firms based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,104 companies tracked

RevenueBase identified 1,104 refinery engineering firms headquartered in Germany as of September 2026 and tracks 19,581 professional contacts across them, including 4,025 with verified work emails. Berlin is the largest hub.

This list covers refinery engineering firms headquartered in Germany, 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

1,104Companies

19,581Contacts tracked

4,025Verified emails

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The 25 largest refinery engineering firms based in Germany

Ranked by team size

Top 25 of 1,104 refinery engineering firms based in Germany, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refinery engineering 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	Bilfinger	Indirect evidence	Mannheim, GermanyHQ checked Sep 17, 2026	10001+	4,035 contacts →
	Indirect evidence “Bilfinger is an international industrial services provider with a vision to be the No.” Source: RevenueBase Database · checked Sep 17, 2026
2	DMT Group	Partial evidence	Essen, GermanyHQ checked Sep 17, 2026	1,001-5,000	606 contacts →
	Partial evidence “Excellence and innovation: that is the commitment of DMT GROUP as an independent, globally active engineering services and consulting company specialising in the markets of plant…” Source: RevenueBase Database · checked Sep 17, 2026
3	SSF Ingenieure AG	Partial evidence	München, GermanyHQ checked Sep 17, 2026	201-500	270 contacts →
	Partial evidence “SSF is a consulting engineering company owned and operated by German engineers committed to the art of civil, structural and geotechnical engineering specializing in bridges…” Source: RevenueBase Database · checked Sep 17, 2026
4	INP Deutschland Gmbh	Partial evidence	Römerberg, GermanyHQ checked Sep 17, 2026	501-1,000	244 contacts →
	Partial evidence “INP International Projects is an owner-managed engineering company with its headquarters in Römerberg.” Source: RevenueBase Database · checked Sep 17, 2026
5	Lindschulte	Partial evidence	Nordhorn, GermanyHQ checked Sep 17, 2026	501-1,000	177 contacts →
	Partial evidence “Lindschulte ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Source: RevenueBase Database · checked Sep 17, 2026
6	Mineraloelraffinerie Oberrhein Gmbh & Co. KG Miro	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 17, 2026	1,001-5,000	150 contacts →
	Indirect evidence “MiRO bewegt und wärmt mit „raffinierten“ Produkten.” Source: RevenueBase Database · checked Sep 17, 2026
7	Bayernoil Raffineriegesellschaft MBH	Indirect evidence	Neustadt An Der Donau, GermanyHQ checked Sep 17, 2026	501-1,000	137 contacts →
	Indirect evidence “Die BAYERNOIL Raffineriegesellschaft stellt aus Rohöl die verschiedensten Produkte wie Benzin, Diesel, Heizöl und Bitumen her.” Source: RevenueBase Database · checked Sep 17, 2026
8	Leonhardt, Andrä UND Partner	Partial evidence	70469 Stuttgart, GermanyHQ checked Sep 17, 2026	201-500	127 contacts →
	Partial evidence “Leonhardt, Andrä und Partner Beratende Ingenieure VBI AG provide the complete range of structural consulting engineering services including feasibility studies, design…” Source: RevenueBase Database · checked Sep 17, 2026
9	PSE Engineering Gmbh	Partial evidence	Quakenbrueck, GermanyHQ checked Sep 17, 2026	51-200	116 contacts →
	Partial evidence “PSE Engineering GmbH is a modern engineering company with an especially successful history and a promising future.” Source: RevenueBase Database · checked Sep 17, 2026
10	Björnsen Beratende Ingenieure	Indirect evidence	Koblenz, GermanyHQ checked Sep 17, 2026	201-500	107 contacts →
	Indirect evidence “Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Source: RevenueBase Database · checked Sep 17, 2026
11	Triplan	Partial evidence	Rosenheim, GermanyHQ checked Sep 17, 2026	501-1,000	106 contacts →
	Partial evidence “Who we are Our passion for engineering has no bounds.” Source: RevenueBase Database · checked Sep 17, 2026
12	Zm-I Gruppe	Indirect evidence	München, GermanyHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “Die ZM-I Gruppe ist eine unabhängige, partnerschaftlich organisierte Ingenieurgesellschaft für anspruchsvolle Bauprojekte.” Source: RevenueBase Database · checked Sep 17, 2026
13	Veltec Service Gmbh	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 17, 2026	501-1,000	81 contacts →
	Indirect evidence “We at Veltec are an independent, medium-sized group of companies and, together with the sister companies of the ETABO Group, form a strong alliance under the umbrella of the Plant…” Source: RevenueBase Database · checked Sep 17, 2026
14	Iproplan Planungsgesellschaft MBH	Indirect evidence	Chemnitz, GermanyHQ checked Sep 17, 2026	201-500	76 contacts →
	Indirect evidence “Designing the world around us means to take responsibility: as engineers and architects we implement a variety of challenging construction projects- On the domestic market and…” Source: RevenueBase Database · checked Sep 17, 2026
15	ICL Ingenieur Consult Gmbh	Indirect evidence	Leipzig, GermanyHQ checked Sep 17, 2026	51-200	76 contacts →
	Indirect evidence “ICL ist eines der führenden national und international tätigen Ingenieur Consulting Unternehmen in Deutschland, mit jahrzehntelanger Expertise und Erfahrung in der Beratung…” Source: RevenueBase Database · checked Sep 17, 2026
16	Holborn Europa Raffinerie Gmbh	Partial evidence	Hamburg, GermanyHQ checked Sep 17, 2026	201-500	72 contacts →
	Partial evidence “HOLBORN Europa Raffinerie is a successful oil refinery that supplies Hamburg and northern Germany with fuels and heating oil.” Source: RevenueBase Database · checked Sep 17, 2026
17	GFK Ingenieure Gmbh	Indirect evidence	Hannover, GermanyHQ checked Sep 17, 2026	201-500	71 contacts →
	Indirect evidence “Unsere Leistungen sind vielfältig.” Source: RevenueBase Database · checked Sep 17, 2026
18	JBO Engineering Group Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “We are visionaries and engineers, generalists and specialists.” Source: RevenueBase Database · checked Sep 17, 2026
19	SWJ Germany Gmbh	Indirect evidence	Griesheim, GermanyHQ checked Sep 17, 2026	201-500	66 contacts →
	Indirect evidence “SWJ - Experten für innovative Lösungen Die Erbringung von Consulting, Ingenieur und Architekturdienstleistungen aller Art im Industrie- und Privatsektor und der öffentlichen Hand…” Source: RevenueBase Database · checked Sep 17, 2026
20	CAC Engineering Gmbh	Partial evidence	Chemnitz, GermanyHQ checked Sep 17, 2026	201-500	63 contacts →
	Partial evidence “CAC ENGINEERING GMBH, established on the international market for the plant and process engineering business, is an experienced contact for comprehensive engineering services.” Source: RevenueBase Database · checked Sep 17, 2026
21	Sehlhoff Gmbh	Indirect evidence	Vilsbiburg, GermanyHQ checked Sep 17, 2026	201-500	60 contacts →
	Indirect evidence “1966 als Planungs- und Beratungsgesellschaft für Ingenieur- und Architekturleistungen im Bauwesen gegründet, entwickelte sich die SEHLHOFF GMBH, INGENIEURE + ARCHITEKTEN zu einem…” Source: RevenueBase Database · checked Sep 17, 2026
22	Ingenieurbüro Utek Gmbh	Indirect evidence	Dortmund, GermanyHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Das Ingenieurbüro UTEK GmbH bietet Kunden Ingenieurleistungen an.” Source: RevenueBase Database · checked Sep 17, 2026
23	Inros Lackner SE	Partial evidence	Rostock, GermanyHQ checked Sep 17, 2026	501-1,000	56 contacts →
	Partial evidence “Worldwide engineering expertise Inros Lackner stands for sophisticated architectural and engineering solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	VTA Verfahrenstechnik UND Automatisierung Gmbh	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 17, 2026	201-500	52 contacts →
	Indirect evidence “Als eigenständiges Ingenieurunternehmen ist die VTA Verfahrenstechnik und Automatisierung GmbH mit Hauptsitz in Gelsenkirchen und den Standorten in Lingen und Schwedt ein…” Source: RevenueBase Database · checked Sep 17, 2026
25	Harrer Ingenieure Gmbh	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “Seit über 65 Jahren ist Harrer Ingenieure eigenverantwortlich und unabhängig als Beratende Ingenieur*innen auf allen Gebieten des Bauwesens tätig.” 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: refinery engineering 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 refinery engineering firms.
Partial evidence: Its own public description names part of refinery engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery engineering 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 1,104 refinery engineering firms based in Germany

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Refinery engineering firms based in Germany at a glance

As of Sep 17, 2026

20.6%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

524

11-50

370

51-200

136

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 1,104 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 refinery engineering 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 Germany whose own description of what they do matches “refinery engineering 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 refinery engineering 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 refinery engineering firms, and records with no verified work email. Companies headquartered outside Germany 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, 4,025 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.

Refinery engineering firms by metro

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 refinery engineering 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 refinery engineering firms are there based in Germany?

RevenueBase identified 1,104 refinery engineering firms headquartered in Germany 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?

Bilfinger, headquartered in Mannheim, tops this list with the largest team on record.

Which city has the most refinery engineering firms?

Berlin leads with 53 headquartered companies, followed by Hamburg (43) and Munchen (25).

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 4,025 verified decision-maker contacts tracked across these 1,104 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.