Company lists · Data refreshed November 2026

Top 25 Impact assessment consultants worldwide

Name: Impact assessment consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,519 companies tracked

RevenueBase identified 6,519 company matches for impact assessment consultants worldwide as of November 2026 and tracks 71,188 professional contacts across them, including 21,724 with verified work emails. Brazil is the largest market and London the largest hub.

This list covers company matches for impact assessment consultants worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for impact assessment consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

6,519Companies

71,188Contacts tracked

21,724Verified emails

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The 25 largest impact assessment consultants worldwide

Ranked by team size

Top 25 of 6,519 company matches for impact assessment consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SRK Consulting	Exact match	Vancouver, CanadaHQ recorded Nov 6, 2026	1,001-5,000	2,428 contacts →
	Exact match “SRK Consulting is an independent, international group providing specialised consultancy services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Swca Environmental Consultants	Exact match	Phoenix, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,695 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	ADE	Exact match	Louvain-la-neuve, BelgiumHQ recorded Nov 6, 2026	n/a	596 contacts →
	Exact match “ADE is a consultancy providing independent advice for contributing to improve public decision-making.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	EBI Consulting	Exact match	Burlington, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	553 contacts →
	Exact match “EBI Consulting is a national environmental and engineering consulting firm helping asset owners, investors, lenders, operators, and telecom infrastructure providers protect value…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Mitcon Consultancy And Engineering Services LTD	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	201-500	514 contacts →
	Exact match “MITCON Consultancy & Engineering Services Limited, an ISO 9001:2015 certified company & NSE listed company, was established in 1982.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	LBR Engenharia E Consultoria Ltda	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	201-500	507 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	AEI Consultants	Exact match	Walnut Creek, CA, United StatesHQ recorded Nov 6, 2026	201-500	493 contacts →
	Exact match “AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Gestiona Consultores	Exact match	Santiago, ChileHQ recorded Nov 6, 2026	201-500	459 contacts →
	Exact match “Somos un equipo consolidado y multidisciplinario de profesionales con amplia experiencia en la gestión para el cumplimiento normativo de proyectos de inversión.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	NINA	Exact match	Trondheim, NorwayHQ recorded Nov 6, 2026	201-500	382 contacts →
	Exact match “The Norwegian Institute for Nature Research (NINA) is Norway’s leading institution for applied ecological research.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Nov 6, 2026	201-500	363 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Triton Environmental Consultants LTD	Exact match	Vancouver, BC, CanadaHQ recorded Nov 6, 2026	201-500	362 contacts →
	Exact match “Triton Environmental Consultants knows western Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Umwelt Environmental & Social Consultants	Exact match	Teralba, AustraliaHQ recorded Nov 6, 2026	201-500	347 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Pitt&sherry	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	201-500	336 contacts →
	Exact match “pitt & sherry is an Australian-owned engineering and environmental consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Pt. Kwarsa Hexagon	Exact match	Bandung, IndonesiaHQ recorded Nov 6, 2026	201-500	327 contacts →
	Exact match “KWARSA HEXAGON is an independent consultant company founded in the year of 1982.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Alinea International	Exact match	Calgary, QC, CanadaHQ recorded Nov 6, 2026	501-1,000	311 contacts →
	Exact match “Alinea is an international development consultancy providing technical and management expertise that helps people improve their lives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Hatfield	Exact match	North Vancouver, BC, CanadaHQ recorded Nov 6, 2026	51-200	291 contacts →
	Exact match “As one of Canada’s Top SME Employers in 2025 and North Vancouver Chamber’s Best Employer in 2024, Hatfield provides high-quality environmental and social services for private and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Sambodhi Research And Communications Pvt. LTD	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	51-200	283 contacts →
	Exact match “Sambodhi Research & Communications helps create high-impact knowledge to catalyse accountability in public domain.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	NTU International A S	Exact match	Aalborg, DenmarkHQ recorded Nov 6, 2026	201-500	278 contacts →
	Exact match “Since 2007, we have delivered sustainable development projects and provided advisory services within engineering, policy, economics, and social fields.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Jbs&g	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	201-500	273 contacts →
	Exact match “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Insuco	Exact match	Northampton, United KingdomHQ recorded Nov 6, 2026	51-200	263 contacts →
	Exact match “Insuco, local understanding for sustainable solutions" Welcome to Insuco!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Walm Engenharia E Tecnologia Ambiental	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	51-200	248 contacts →
	Exact match “A WALM Engenharia e Tecnologia Ambiental Ltda.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Dansk Miljørådgivning A S	Exact match	Silkeborg, DenmarkHQ recorded Nov 6, 2026	201-500	240 contacts →
	Exact match “Dansk Miljørådgivning A/S (DMR) er et rådgivende ingeniørfirma, der yder rådgivning indenfor bl.a:* forureningsundersøgelser og udarbejdelse af risikovurderinger.* oprensning af…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Arbtech	Exact match	Chester, United KingdomHQ recorded Nov 6, 2026	51-200	229 contacts →
	Exact match “Founded in 2005, Arbtech has grown into the UK's leading arboricultural and ecological consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	MKO	Exact match	Galway, IrelandHQ recorded Nov 6, 2026	201-500	226 contacts →
	Exact match “MKO is Ireland’s largest Planning and Environmental consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	ECO Logical Australia PTY LTD	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	201-500	226 contacts →
	Exact match “We empower people to make a difference.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “impact assessment consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,519 impact assessment consultants worldwide

See the full list, filter by size, metro and specialty, and access 21,724 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Impact assessment consultants worldwide at a glance

As of Nov 6, 2026

30.5%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,196

11-50

1,798

51-200

353

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for impact assessment consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “impact assessment consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 21,724 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Impact assessment consultants by location

42 lists · largest first

Every Impact assessment consultants 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “impact assessment consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many impact assessment consultants are there worldwide?

RevenueBase identified 6,519 company matches for impact assessment consultants worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

SRK Consulting tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most impact assessment consultants?

Brazil leads with 597 companies, followed by the United Kingdom (560) and Australia (449). Every impact assessment consultants list by country and city is linked on this page.

Which city has the most impact assessment consultants?

London leads with 88 company records, followed by Sao Paulo (67) and Nairobi (65).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 21,724 professional contacts with verified work emails tracked across these 6,519 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.