Company lists · Data refreshed September 2026

Top 25 Iso 12100 consulting firms worldwide

Name: Iso 12100 consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 14,186 companies tracked

RevenueBase identified 14,186 iso 12100 consulting firms worldwide as of September 2026 and tracks 111,323 professional contacts across them, including 16,464 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers iso 12100 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 28, 2026. Country and city lists for iso 12100 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

14,186Companies

111,323Contacts tracked

16,464Verified emails

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The 25 largest iso 12100 consulting firms worldwide

Ranked by team size

Top 25 of 14,186 iso 12100 consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to iso 12100 consulting 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	Autonomo	Indirect evidence	Córdoba, SpainHQ checked Sep 28, 2026	n/a	23,018 contacts →
	Indirect evidence “Calidad y Gestión es una empresa consultora de ámbito internacional especializada en servicios de asesoría en las siguientes áreas: Calidad Medio Ambiente Responsabilidad social…” Source: RevenueBase Database · checked Sep 28, 2026
2	ACE	Partial evidence	CanadaHQ checked Sep 28, 2026	n/a	1,915 contacts →
	Partial evidence “consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Source: RevenueBase Database · checked Sep 28, 2026
3	MCA Auditoria E Gerenciamento Ltda	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,754 contacts →
	Partial evidence “MCA Audit and Management Ltd, which specializes in consulting, auditing and project management and construction, is a company created by professionals graduating from leading…” Source: RevenueBase Database · checked Sep 28, 2026
4	Jensen Hughes	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,655 contacts →
	Indirect evidence “Worldwide, we are most recognized for our leadership in fire protection engineering, a tradition of responsibility we have advanced with pride since 1939.” Source: RevenueBase Database · checked Sep 28, 2026
5	Plamont Engenharia, Planejamento E Montagem	Indirect evidence	Serra, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,592 contacts →
	Indirect evidence “Localizada no município de Serra no estado do Espírito Santo, apresenta um posicionamento de mercado consistente por meio da eficiência de seus funcionários, da otimização do seu…” Source: RevenueBase Database · checked Sep 28, 2026
6	Boslan Ingeniería Y Consultoría	Indirect evidence	Bilbao, SpainHQ checked Sep 28, 2026	501-1,000	526 contacts →
	Indirect evidence “Boslan, now part of Accenture, is a consolidated and solvent company supported by its numerous references developed for an important portfolio of clients.” Source: RevenueBase Database · checked Sep 28, 2026
7	Service Engenharia	Indirect evidence	Salvador, BrazilHQ checked Sep 28, 2026	1,001-5,000	519 contacts →
	Indirect evidence “A SERVICE Engenharia é uma empresa de prestação de serviços de Consultoria, Planejamento, Administração, Fiscalização, Manutenção, Construção e Montagem Industrial, atuando em…” Source: RevenueBase Database · checked Sep 28, 2026
8	Safety Management Group	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 28, 2026	201-500	485 contacts →
	Indirect evidence “We are people-centric Quality, Health, Safety, and Environmental (QHSE) consultants driven to reduce risk, foster sustainable operations, and enhance safety culture to protect…” Source: RevenueBase Database · checked Sep 28, 2026
9	Synergy Engineering	Indirect evidence	Asean, IndonesiaHQ checked Sep 28, 2026	501-1,000	468 contacts →
	Indirect evidence “Synergy Engineering is a Multi-Disciplinary Design and Engineering Consultancy for various industries including the Oil & Gas, Power, Renewable Energy and General Industry.” Source: RevenueBase Database · checked Sep 28, 2026
10	ECB	Indirect evidence	Cairo, EgyptHQ checked Sep 28, 2026	501-1,000	434 contacts →
	Indirect evidence “Since 1997, ECB is a fast growing and promising engineering & consultancy firm equipped with a cutting edge multidisciplinary platform and an exceptional track record in the…” Source: RevenueBase Database · checked Sep 28, 2026
11	LBR Engenharia E Consultoria Ltda	Partial evidence	São Paulo, BrazilHQ checked Sep 28, 2026	201-500	424 contacts →
	Partial evidence “A LBR Engenharia e Consultoria, desde sua fundação, ocorrida em 1996, preza pela excelência, na prestação de serviços de engenharia consultiva, sempre buscando soluções inovadoras…” Source: RevenueBase Database · checked Sep 28, 2026
12	Micla Engineering & Design	Indirect evidence	Rivoli (to), ItalyHQ checked Sep 28, 2026	501-1,000	373 contacts →
	Indirect evidence “MICLA Engineering & Design was established in 2005 with the aim to support its clients, offering qualified resources in the Automotive area and generally in industry.” Source: RevenueBase Database · checked Sep 28, 2026
13	Ecol Studio Lifeanalytics	Indirect evidence	Lucca, ItalyHQ checked Sep 28, 2026	201-500	345 contacts →
	Indirect evidence “Salute, Sicurezza, Ambiente e Qualità del prodotto: sei davvero sostenibile?” Source: RevenueBase Database · checked Sep 28, 2026
14	INTEC	Indirect evidence	Borlänge, SwedenHQ checked Sep 28, 2026	501-1,000	345 contacts →
	Indirect evidence “Our services cover every stage of a process or building's life cycle, from the initial idea and early stages through to design, management and maintenance.” Source: RevenueBase Database · checked Sep 28, 2026
15	Monsertec Engenharia	Indirect evidence	Davila, BrazilHQ checked Sep 28, 2026	1,001-5,000	343 contacts →
	Indirect evidence “Serviços especializados para construção não especificados anteriormente” Source: RevenueBase Database · checked Sep 28, 2026
16	Abbott Risk Consulting	Partial evidence	Edinburgh, United KingdomHQ checked Sep 28, 2026	51-200	268 contacts →
	Partial evidence “Abbott Risk Consulting (ARC) is a dynamic safety engineering consultancy with a world-wide reputation for delivering quality solutions to the nuclear, defence, oil and gas…” Source: RevenueBase Database · checked Sep 28, 2026
17	Hyde Engineering Consulting	Partial evidence	Louisville, CO, United StatesHQ checked Sep 28, 2026	201-500	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 28, 2026
18	Almnabr Consulting Engineering	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	201-500	225 contacts →
	Indirect evidence “شركة استشارات هندسية رائدة تأسست عام 2011 لتقدم خدمات الاستشارات الهندسية في الدراسات والتصميم وإدارة المشاريع والاشراف على التنفيذ بالإضافة لصياغة العقود الهندسية وتسوية النزاعات…” Source: RevenueBase Database · checked Sep 28, 2026
19	Compet Engenharia	Indirect evidence	Vitória, BrazilHQ checked Sep 28, 2026	201-500	217 contacts →
	Indirect evidence “Com mais de 15 anos de atuação no mercado industrial ofertando soluções para os Projetos de nossos Clientes.” Source: RevenueBase Database · checked Sep 28, 2026
20	Omnex INC	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 28, 2026	501-1,000	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
21	TCPM	Indirect evidence	Apeldoorn, NetherlandsHQ checked Sep 28, 2026	51-200	208 contacts →
	Indirect evidence “TCPM Ingenieurs & Adviseurs, strategisch partner voor de industrie.” Source: RevenueBase Database · checked Sep 28, 2026
22	Nist Global	Indirect evidence	Chennai, IndiaHQ checked Sep 28, 2026	51-200	207 contacts →
	Indirect evidence “At NIST Global, we are India’s first NEBOSH Gold Learning Partner and a premier safety organization dedicated to creating safer workplaces worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
23	Techsolution	Indirect evidence	São José Dos Pinhais, BrazilHQ checked Sep 28, 2026	201-500	203 contacts →
	Indirect evidence “Desde 2011, a TECHSOLUTION é parceira estratégica de empresas que buscam eficiência, inovação e resultados sustentáveis no ambiente industrial.” Source: RevenueBase Database · checked Sep 28, 2026
24	2a Group	Indirect evidence	Brembate, ItalyHQ checked Sep 28, 2026	51-200	182 contacts →
	Indirect evidence “2A Group è composta da due realtà sinergiche e complementari: 2A Engineering e 2A Ecogestioni 🤝 Un team multidisciplinare con oltre 100 esperti presenti in tutta Italia, al…” Source: RevenueBase Database · checked Sep 28, 2026
25	Gestar Innovacion SAS	Indirect evidence	Barrios Unidos, ColombiaHQ checked Sep 28, 2026	201-500	180 contacts →
	Indirect evidence “Comprehensive OHS System Consultancy \| Occupational Health Programs \| Legal and Strategic Advisory We have been providing our services since May 9, 2005.” Source: RevenueBase Database · checked Sep 28, 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: iso 12100 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 iso 12100 consulting firms.
Partial evidence: Its own public description names part of iso 12100 consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name iso 12100 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 14,186 iso 12100 consulting firms worldwide

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Iso 12100 consulting firms worldwide at a glance

As of Sep 28, 2026

14.8%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

10,439

11-50

3,058

51-200

495

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 iso 12100 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 iso 12100 consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “iso 12100 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 iso 12100 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 iso 12100 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, 16,464 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 28, 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.

Iso 12100 consulting firms by location

57 lists · largest first

Every Iso 12100 consulting firms 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 iso 12100 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 iso 12100 consulting firms are there worldwide?

RevenueBase identified 14,186 iso 12100 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?

Autonomo, headquartered in Cordoba, tops this list with the largest team on record.

Which country has the most iso 12100 consulting firms?

Brazil leads with 1,940 companies, followed by Italy (1,239) and the United States (870). Every iso 12100 consulting firms list by country and city is linked on this page.

Which city has the most iso 12100 consulting firms?

Sao Paulo leads with 250 headquartered companies, followed by Lima (185) and Bogota (100).

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 16,464 verified decision-maker contacts tracked across these 14,186 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 28, 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.