Company lists · Data refreshed September 2026

Top 25 Subsurface exploration services based in Germany

Name: Subsurface exploration services based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 188 companies tracked

RevenueBase identified 188 subsurface exploration services headquartered in Germany as of September 2026 and tracks 955 professional contacts across them, including 351 with verified work emails. Berlin is the largest hub.

This list covers subsurface exploration services 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 22, 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 22, 2026 86% judged on-target in blind review

188Companies

955Contacts tracked

351Verified emails

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The 25 largest subsurface exploration services based in Germany

Ranked by team size

Top 25 of 188 subsurface exploration services based in Germany, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsurface exploration services: 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	Dr. Spang Ingenieurgesellschaft	Indirect evidence	Witten, GermanyHQ checked Sep 22, 2026	201-500	104 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 22, 2026
2	Deep.Kbb Gmbh	Indirect evidence	Bad Zwischenahn, GermanyHQ checked Sep 22, 2026	51-200	55 contacts →
	Indirect evidence “DEEP.KBB is a leader in the field of sub-surface technology.” Source: RevenueBase Database · checked Sep 22, 2026
3	Baugrund SÜD Gesellschaft FÜR Geothermie MBH	Indirect evidence	Bad Wurzach, GermanyHQ checked Sep 22, 2026	51-200	50 contacts →
	Indirect evidence “BauGrund Süd Gesellschaft für Geothermie mbH is an utilities company based out of MAYBACHSTRASSE 5, Bad Wurzach, Germany.” Source: RevenueBase Database · checked Sep 22, 2026
4	Geo-Data, Gesellschaft FÜR Logging-Service MBH	Indirect evidence	Berenbostel, GermanyHQ checked Sep 22, 2026	51-200	38 contacts →
	Indirect evidence “In 1978 the GEO-data GmbH was founded as a geological service enterprise.” Source: RevenueBase Database · checked Sep 22, 2026
5	Boley Geotechnik Gmbh	Indirect evidence	München, GermanyHQ checked Sep 22, 2026	11-50	35 contacts →
	Indirect evidence “Wir, Boley Geotechnik GmbH, sind ein mittelständisches Unternehmen mit insgesamt rund 50 Mitarbeitern an unserem Standort in München.” Source: RevenueBase Database · checked Sep 22, 2026
6	Drilltec GUT Gmbh Großbohr- UND Umwelttechnik	Indirect evidence	Deggendorf, GermanyHQ checked Sep 22, 2026	51-200	31 contacts →
	Indirect evidence “Die DrillTec GUT GmbH Großbohr- und Umwelttechnik gehört zu den europaweit agierenden Bohrkontraktoren für namhafte Unternehmen der Öl, Gas- und Geothermie-Branche.” Source: RevenueBase Database · checked Sep 22, 2026
7	H. Anger's Söhne Bohr- UND Brunnenbaugesellschaft MBH	Indirect evidence	Hessisch Lichtenau, GermanyHQ checked Sep 22, 2026	51-200	23 contacts →
	Indirect evidence “H.” Source: RevenueBase Database · checked Sep 22, 2026
8	Antares Datensysteme Gmbh	Indirect evidence	Stuhr, GermanyHQ checked Sep 22, 2026	51-200	21 contacts →
	Indirect evidence “ANTARES provides international experience in a wide spectrum of geophysical techniques, ranging from borehole geophysics, borehole seismic, cavern logging, environmental, and…” Source: RevenueBase Database · checked Sep 22, 2026
9	Terratec Geophysical Services Gmbh & Co.Kg	Indirect evidence	Heitersheim, GermanyHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “terratec Geophysical Services offers surface geophysical and borehole logging services worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
10	GTU Ingenieurgesellschaft	Indirect evidence	Hannover, GermanyHQ checked Sep 22, 2026	201-500	17 contacts →
	Indirect evidence “Wir haben gute Gründe – und das seit mehr als 33 Jahren Wir von der GTU geben Ihnen gerne gute Gründe mit uns zusammen zu arbeiten.” Source: RevenueBase Database · checked Sep 22, 2026
11	Socon Sonar Control Kavernenvermessung Gmbh	Indirect evidence	Giesen Bei Hildesheim, GermanyHQ checked Sep 22, 2026	51-200	16 contacts →
	Indirect evidence “SOCON – DER SPEZIALIST FÜR DIE ÜBERWACHUNG VON KAVERNEN, HOHLRÄUMEN UND BOHRUNGEN Mit über 50 Jahren Erfahrung können wir auf zehntausende erfolgreiche Kavernenvermessungen…” Source: RevenueBase Database · checked Sep 22, 2026
12	Buchholz Partner Gmbh	Indirect evidence	Schkeuditz, GermanyHQ checked Sep 22, 2026	51-200	15 contacts →
	Indirect evidence “BUCHHOLZ + PARTNER ist ein Gutachter- und Sachverständigenbüro mit den Tätigkeitsschwerpunkten Ingenieurgeologie, Baugrunderkundung und Geotechnik sowie Umweltplanung und…” Source: RevenueBase Database · checked Sep 22, 2026
13	Geo-Log Ingenieurgesellschaft MBH	Indirect evidence	Braunschweig, GermanyHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “Die GEO-LOG Ingenieurgesellschaft ist ein regional verbundenes, unabhängiges Ingenieur- und Beratungsunternehmen.” Source: RevenueBase Database · checked Sep 22, 2026
14	ICG Ingenieure	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “40+ Mitarbeiter*innen, über 50 Jahre Erfahrung, 1 Bodenmechanisches Labor Als Experten für den Baugrund befassen wir uns seit fast 50 Jahren mit allen Aspekten der Geotechnik, des…” Source: RevenueBase Database · checked Sep 22, 2026
15	GHJ Ingenieurgesellschaft FÜR Geo- UND Umwelttechnik	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Unser Leistungsspektrum umfasst alle Bereiche der Geotechnik, wie die Gründung von Wohn, Gewerbe und Industriebauten, die Sicherung von Baugruben und Böschungen sowie die…” Source: RevenueBase Database · checked Sep 22, 2026
16	Maul Partner Baugrund-Ingenieurbüro Gmbh	Indirect evidence	Potsdam, GermanyHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “Die Maul + Partner Baugrund-Ingenieurbüro GmbH wurde im Jahr 1990 gegründet und erbringt seit über 30 Jahren unabhängig und mit Erfolg geotechnische, hydrotechnische und…” Source: RevenueBase Database · checked Sep 22, 2026
17	BBI Geo- UND Umwelttechnik Ingenieur-Gesellschaft MBH	Indirect evidence	Hamburg, GermanyHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Die BBI Ingenieur-Gesellschaft ist ein seit 1991 erfolgreich auf dem Gebiet der Geo- und Umwelttechnik etabliertes Ingenieurbüro.” Source: RevenueBase Database · checked Sep 22, 2026
18	Thade Gerdes Gmbh	Indirect evidence	Norden, GermanyHQ checked Sep 22, 2026	51-200	10 contacts →
	Indirect evidence “Fundierten Baugrundanalysen, Brunnenbau und Tiefgründung.” Source: RevenueBase Database · checked Sep 22, 2026
19	Baugrund Dresden Ingenieurgesellschaft MBH	Indirect evidence	Dresden, GermanyHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Baugrund Dresden Ingenieurgesellschaft mbH is a company based out of Dresden, Germany.” Source: RevenueBase Database · checked Sep 22, 2026
20	Celler Brunnenbau Gmbh	Indirect evidence	Celle-altencelle, GermanyHQ checked Sep 22, 2026	51-200	9 contacts →
	Indirect evidence “Niedersachsen – Mitten aus dem traditionellen Zentrum deutscher Bohrtechnologie heraus versorgt die celler brunnenbau gmbh Auftraggeber in aller Welt mit innovativer Bohrtechnik.” Source: RevenueBase Database · checked Sep 22, 2026
21	GGU Gesellschaft FÜR Grundbau UND Umwelttechnik MBH	Indirect evidence	Braunschweig, GermanyHQ checked Sep 22, 2026	51-200	9 contacts →
	Indirect evidence “GGU Gesellschaft für Grundbau und Umwelttechnik GmbH ist ein spezialisiertes Ingenieurbüro mit Standorten in Braunschweig, Magdeburg, Öhringen und Schwerin.” Source: RevenueBase Database · checked Sep 22, 2026
22	Baugrundinstitut Franke-Meißner Rheinland-Pfalz Gmbh	Indirect evidence	Mainz, GermanyHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “Von der Baugrunderkundung bis zur fertigen Baugrube!” Source: RevenueBase Database · checked Sep 22, 2026
23	Küster & Petereit Ingenieure Gmbh	Indirect evidence	Elmshorn, GermanyHQ checked Sep 22, 2026	1-10	8 contacts →
	Indirect evidence “Angewandte Geotechnik bedeutet für uns die Verbindung aus solidem theoretischen Fachwissen und fundierter Erfahrung aus der Baupraxis mit dem Ziel kreative, sichere und…” Source: RevenueBase Database · checked Sep 22, 2026
24	Innomar Technologie Gmbh	Indirect evidence	Rostock, GermanyHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “INNOMAR provides parametric (non-linear) sub-bottom profilers for shallow and deep waters up to full ocean depth.” Source: RevenueBase Database · checked Sep 22, 2026
25	Salmen Fels-, Ingenieur- UND Spezialtiefbau Gmbh	Indirect evidence	Meschede, GermanyHQ checked Sep 22, 2026	51-200	7 contacts →
	Indirect evidence “SALMEN Fels, Ingenieur- und Spezialtiefbau GmbH is a construction company based out of 18 Auf'm Brinke, Meschede, Germany.” Source: RevenueBase Database · checked Sep 22, 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: subsurface exploration services. 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 subsurface exploration services.
Partial evidence: Its own public description names part of subsurface exploration services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface exploration services. 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 188 subsurface exploration services based in Germany

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Subsurface exploration services based in Germany at a glance

As of Sep 22, 2026

36.8%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · Berlin

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 188 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 subsurface exploration services, 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 “subsurface exploration services”. 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 subsurface exploration services), 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 subsurface exploration services, 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, 351 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 22, 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 subsurface exploration services, 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 subsurface exploration services are there based in Germany?

RevenueBase identified 188 subsurface exploration services 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?

Dr. Spang Ingenieurgesellschaft, headquartered in Witten, tops this list with the largest team on record.

Which city has the most subsurface exploration services?

Berlin leads with 6 headquartered companies, followed by Dresden (4) and Hannover (4).

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 351 verified decision-maker contacts tracked across these 188 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 22, 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.