Company lists · Data refreshed September 2026

Top 25 Oil and gas instrumentation companies worldwide

Name: Oil and gas instrumentation companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 7,472 companies tracked

RevenueBase identified 7,472 oil and gas instrumentation companies worldwide as of September 2026 and tracks 269,047 professional contacts across them, including 74,999 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.

This list covers oil and gas instrumentation companies worldwide, 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. Country and city lists for oil and gas instrumentation companies follow the table.

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

7,472Companies

269,047Contacts tracked

74,999Verified emails

0Mobile numbers

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The 25 largest oil and gas instrumentation companies worldwide

Ranked by team size

Top 25 of 7,472 oil and gas instrumentation companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas instrumentation companies: 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	SLB	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	76,561 contacts →
	Indirect evidence “SLB is a global technology company that has driven energy innovation for more than a century.” Source: RevenueBase Database · checked Sep 17, 2026
2	Aker Solutions	Indirect evidence	Fornebu, NorwayHQ checked Sep 17, 2026	10001+	15,774 contacts →
	Indirect evidence “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Source: RevenueBase Database · checked Sep 17, 2026
3	Wika Group	Indirect evidence	Klingenberg, MexicoHQ checked Sep 17, 2026	10001+	4,549 contacts →
	Indirect evidence “The WIKA Group is a global market leader in pressure and temperature measurement.” Source: RevenueBase Database · checked Sep 17, 2026
4	PT Elnusa TBK	Strong evidence	Jakarta Selatan, IndonesiaHQ checked Sep 17, 2026	1,001-5,000	3,932 contacts →
	Strong evidence “We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Source: RevenueBase Database · checked Sep 17, 2026
5	Oilserv	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 17, 2026	1,001-5,000	2,249 contacts →
	Indirect evidence “OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…” Source: RevenueBase Database · checked Sep 17, 2026
6	OIL States International	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,215 contacts →
	Partial evidence “Oil States International, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
7	Rotork	Strong evidence	Bath, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,834 contacts →
	Strong evidence “Rotork is a FTSE-250 global leader in mission-critical flow control and instrumentation solutions, trusted by the world’s most essential industries - including oil & gas, water &…” Source: RevenueBase Database · checked Sep 17, 2026
8	Weir OIL And GAS	Strong evidence	Fort Worth, TX, United StatesHQ checked Sep 17, 2026	n/a	1,651 contacts →
	Strong evidence “Caterpillar Inc.(NYSE:CAT) has completed its acquisition of the Oil & Gas Division (“Weir Oil & Gas”) of the Weir Group PLC, a Scotland-based global engineering business.” Source: RevenueBase Database · checked Sep 17, 2026
9	Krohne	Partial evidence	Duisburg, GermanyHQ checked Sep 17, 2026	1,001-5,000	1,640 contacts →
	Partial evidence “KROHNE is a global manufacturer and provider of process instrumentation, measurement solutions and services in many industries.” Source: RevenueBase Database · checked Sep 17, 2026
10	Spartan Controls	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	1,280 contacts →
	Indirect evidence “Spartan Controls is the leading provider of industrial automation, valves, measurement and process control technology and solutions in Western Canada.” Source: RevenueBase Database · checked Sep 17, 2026
11	Englobal	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	1,183 contacts →
	Indirect evidence “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Source: RevenueBase Database · checked Sep 17, 2026
12	Stewart & Stevenson	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,135 contacts →
	Strong evidence “Stewart & Stevenson is a leading designer, manufacturer and provider of specialized equipment and aftermarket parts and service for the oil and gas and other industries that we…” Source: RevenueBase Database · checked Sep 17, 2026
13	John Energy Limited	Strong evidence	Ahmadabad, IndiaHQ checked Sep 17, 2026	501-1,000	1,096 contacts →
	Strong evidence “JEL is India based niche provider of oil & Gas Field serives.” Source: RevenueBase Database · checked Sep 17, 2026
14	Welltec	Indirect evidence	Allerød, DenmarkHQ checked Sep 17, 2026	501-1,000	1,043 contacts →
	Indirect evidence “Welltec® is a global technology company that develops and provides efficient, hi-tech solutions for the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Inficon	Partial evidence	Bad Ragaz, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,017 contacts →
	Partial evidence “INFICON is a leading provider of innovative instrumentation, critical sensor technologies, and Smart Manufacturing/Industry 4.0 software solutions that enhance productivity and…” Source: RevenueBase Database · checked Sep 17, 2026
16	Celeros Flow Technology	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	928 contacts →
	Indirect evidence “Your "FULL-LIFECYCLE" Partner for Sustainable Flow Technology Solutions.” Source: RevenueBase Database · checked Sep 17, 2026
17	Proserv	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	501-1,000	924 contacts →
	Indirect evidence “Proserv is the controls technology partner powering progress across the global energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
18	Honeywell Sundyne	Strong evidence	Arvada, CO, United StatesHQ checked Sep 17, 2026	501-1,000	778 contacts →
	Strong evidence “Honeywell Sundyne manufactures highly reliable engineered pumps and compressors for global companies in upstream and midstream oil and gas production, refining, petrochemical…” Source: RevenueBase Database · checked Sep 17, 2026
19	SOPAN	Strong evidence	Pune, IndiaHQ checked Sep 17, 2026	1,001-5,000	708 contacts →
	Strong evidence “Established in 2001 by Energy professionals, SOPAN has emerged as a strong player in the field of Projects, Services and Equipments & Systems to Oil & Gas/ Petrochemical, Water &…” Source: RevenueBase Database · checked Sep 17, 2026
20	Sensirion	Indirect evidence	Stäfa, JapanHQ checked Sep 17, 2026	1,001-5,000	699 contacts →
	Indirect evidence “Sensirion Holding AG (SIX: SENS), headquartered in Stäfa, Switzerland, is a global leader in sensor and sensor solutions.” Source: RevenueBase Database · checked Sep 17, 2026
21	Delta Corporation	Strong evidence	Usa, United KingdomHQ checked Sep 17, 2026	501-1,000	665 contacts →
	Strong evidence “Delta Corporation specializes in the design and manufacture of API-compliant wellhead equipment and pressure control systems for both onshore and offshore oil and gas operations.” Source: RevenueBase Database · checked Sep 17, 2026
22	Worldwide Oilfield Machine	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Indirect evidence “Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.” Source: RevenueBase Database · checked Sep 17, 2026
23	Novomet	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 17, 2026	5,001-10,000	582 contacts →
	Indirect evidence “Novomet is a dynamic and continually developing innovative company.” Source: RevenueBase Database · checked Sep 17, 2026
24	Omega Engineering	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 17, 2026	501-1,000	582 contacts →
	Indirect evidence “Omega sells more than products used to measure temperature and humidity, flow and level, and pressure.” Source: RevenueBase Database · checked Sep 17, 2026
25	PT Solusi Energy Nusantara	Partial evidence	IndonesiaHQ checked Sep 17, 2026	501-1,000	563 contacts →
	Partial evidence “PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.” 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: oil and gas instrumentation companies. 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 oil and gas instrumentation companies.
Partial evidence: Its own public description names part of oil and gas instrumentation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas instrumentation companies. 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 7,472 oil and gas instrumentation companies worldwide

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Oil and gas instrumentation companies worldwide at a glance

As of Sep 17, 2026

27.9%Verified-email coverage

36.0Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,451

11-50

2,890

51-200

1,417

201-500

426

501-1,000

115

1,001-5,000

100

5,001-10,000

10001+

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 oil and gas instrumentation companies, 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.
Coverage: 36 countries, largest first: the United States, India, China, the United Kingdom, Canada, Italy, Brazil, the United Arab Emirates, Germany, Mexico and 26 more. Country and city lists for oil and gas instrumentation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “oil and gas instrumentation companies”. 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 oil and gas instrumentation companies), 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 oil and gas instrumentation companies, and records with no verified work email.
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, 74,999 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.

Oil and gas instrumentation companies by location

44 lists · largest first

Every Oil and gas instrumentation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 oil and gas instrumentation companies, 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 oil and gas instrumentation companies are there worldwide?

RevenueBase identified 7,472 oil and gas instrumentation companies worldwide 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?

SLB, headquartered in Houston, tops this list with the largest team on record.

Which country has the most oil and gas instrumentation companies?

The United States leads with 1,629 companies, followed by India (867) and China (509). Every oil and gas instrumentation companies list by country and city is linked on this page.

Which city has the most oil and gas instrumentation companies?

Houston leads with 232 headquartered companies, followed by Dubai (117) and Calgary (113).

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 74,999 verified decision-maker contacts tracked across these 7,472 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.