Company lists · Data refreshed September 2026
Top 25 Nadcap consulting firms worldwide
RevenueBase identified 1,566 nadcap consulting firms worldwide as of September 2026 and tracks 12,324 professional contacts across them, including 3,130 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers nadcap consulting firms 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 29, 2026. Country and city lists for nadcap consulting firms 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.
The 25 largest nadcap consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 890 contacts → | ||||
Partial evidence “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 483 contacts → | ||||
Indirect evidence “Geo designs & Research Pvt Ltd (GDRPL) was founded in 2007.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 271 contacts → | ||||
Indirect evidence “Founded to meet the needs for professional engineering services for its clients and to advance the quality of the constructed environment, EES is a licensed and certified firm…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 255 contacts → | ||||
Indirect evidence “Established in 2008, Axis Inspection Contracting JSC.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 253 contacts → | ||||
Partial evidence “Hyde E+C is an international engineering consulting firm that helps companies operate more efficiently, get products to market more quickly, meet regulatory requirements more…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 245 contacts → | ||||
Partial evidence “Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 170 contacts → | ||||
Indirect evidence “XCEL is an industrial inspection company with a unique blend of services focused on your compliance needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 143 contacts → | ||||
Indirect evidence “JANX is a leader in nondestructive testing and inspection solutions with offices throughout the USA.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 136 contacts → | ||||
Indirect evidence “Somos una consultora con 15 años de trayectoria, brindando servicios de consultoría y soluciones innovadoras de la más alta calidad.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 128 contacts → | ||||
Indirect evidence “Fundada em 1995, a Alltec se destaca no fornecimento de soluções de engenharia, peças em materiais compósitos e moldes para os mercados em que atua.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 106 contacts → | ||||
Indirect evidence “We are an ISO 9001 certified organization made up of 70 specialists.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 104 contacts → | ||||
Indirect evidence “Aegeus Inspection Solutions delivers conventional and advanced non-destructive testing, inspection, engineering, and staff augmentation solutions for the energy, defense, and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 93 contacts → | ||||
Partial evidence “TFC Consulting, Inc is a licensed CPA and consulting firm in the Washington DC metro area.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Partial evidence “Alton Aviation Consultancy has significant experience delivering large, complex consulting engagements for clients in aviation and aerospace.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 84 contacts → | ||||
Indirect evidence “INTEGRATED TECHNOLOGIES FOR INDUSTRIAL SERVICES CO.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 72 contacts → | ||||
Indirect evidence “YEPSAN HAVACILIK SANAYİ A.Ş.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 71 contacts → | ||||
Partial evidence “Answer Engineering is an aviation & aerospace engineering consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 68 contacts → | ||||
Indirect evidence “We are an composite parts manufacturing company with design and development of complex parts for aerospace and general industrial applications.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 67 contacts → | ||||
Indirect evidence “Alphaplan is een middelgroot onafhankelijk adviesbureau met ruim 40 jaar ervaring in het begeleiden van projecten in de woningbouw en utiliteitsbouw.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 66 contacts → | ||||
Indirect evidence “We are a group of engineers who align our goals with your organizational objectives, We help Defense Contractors comply with CMMC, DFARS, and NIST.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 66 contacts → | ||||
Partial evidence “Aleph INDIA a BIS : ISO 9001 certified consulting organization specializing in regulatory compliance, product certifications and testing under various Domestic & international…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 66 contacts → | ||||
Indirect evidence “Innovation for the Next Generation of Aerospace" Bye Aerospace, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 66 contacts → | ||||
Partial evidence “Based in South Africa, VGI Consulting PTY LTD is a leading multidisciplinary consulting engineering firm with 50 years experience, specializing in the Engineering, Procurement and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 62 contacts → | ||||
Partial evidence “A RECUPERAÇÃO SERVIÇOS ESPECIAIS DE ENGENHARIA é uma empresa de engenharia consultiva, certificada pela ISO 9001 que presta serviços de controle de qualidade, projeto, perícia…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 62 contacts → | ||||
Indirect evidence “Siamo una società di consulenza che dal 1985 fornisce supporto alle aziende in materia di ambiente, sicurezza e qualità garantendo un servizio completo mediante un unico…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: nadcap consulting 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 nadcap consulting firms.
- Partial evidence
- Its own public description names part of nadcap consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nadcap consulting 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 1,566 nadcap consulting firms worldwide
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Nadcap consulting firms worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 nadcap consulting 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.
- Coverage
- Every country. Country and city lists for nadcap consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “nadcap consulting 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 nadcap consulting 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 nadcap consulting firms, 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, 3,130 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 29, 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.
Nadcap consulting firms by location
9 lists · largest firstEvery Nadcap consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Nadcap consulting firms based in the United States537
- Nadcap consulting firms based in Brazil100
- Nadcap consulting firms based in India78
- Nadcap consulting firms based in France54
- Nadcap consulting firms based in the United Kingdom53
- Nadcap consulting firms based in Italy41
- Nadcap consulting firms based in Germany34
- Nadcap consulting firms based in Australia31
- Nadcap consulting firms based in Canada31
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 nadcap consulting 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 nadcap consulting firms are there worldwide?
RevenueBase identified 1,566 nadcap consulting firms 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?
Applied Technical Services, LLC, headquartered in Marietta, tops this list with the largest team on record.
Which country has the most nadcap consulting firms?
The United States leads with 537 companies, followed by Brazil (100) and India (78). Every nadcap consulting firms list by country and city is linked on this page.
Which city has the most nadcap consulting firms?
Houston leads with 17 headquartered companies, followed by Sao Paulo (16) and Pune (8).
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 3,130 verified decision-maker contacts tracked across these 1,566 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 29, 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.