Company lists · Data refreshed September 2026

Top 25 Lean consulting firms based in the Netherlands

RevenueBase identified 583 lean consulting firms headquartered in the Netherlands as of September 2026 and tracks 3,269 professional contacts across them, including 1,545 with verified work emails and 346 with mobile numbers. Amsterdam is the largest hub.

This list covers lean consulting firms headquartered in the Netherlands, 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
583Companies
3,269Contacts tracked
1,545Verified emails
346Mobile numbers
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The 25 largest lean consulting firms based in the Netherlands

Ranked by team size
Top 25 of 583 lean consulting firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lean consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Ijssel Technology ServicesIndirect evidence
Zwolle, NetherlandsHQ checked Sep 4, 2026201-500235

“The market is constantly looking for product development and innovation.”

Source: company website · checked Sep 4, 2026
2
Sparke & KeaneStrong evidence
Eindhoven, NetherlandsHQ checked Sep 4, 202651-200214

“Wij zijn experts in Strategy Consulting, Lean Project & Project Management, Digital Transformation, Finance & Control en Business Intelligence.”

Source: company website · checked Sep 4, 2026
3
Zicht ConsultantsIndirect evidence
Utrecht, NetherlandsHQ checked Sep 4, 202651-200114

“ZICHT Consultants richt zich op vraagstukken op het gebied van procesverbeteringen, datamanagement, implementaties en project- en programmamanagement.”

Source: company website · checked Sep 4, 2026
4
CQMIndirect evidence
Eindhoven, NetherlandsHQ checked Sep 4, 202611-5086

“CQM is a strategic partner who helps you take your organization, processes, employees, products and services to a higher level on a structural basis.”

Source: company website · checked Sep 4, 2026
5
DE ProcesspecialistenIndirect evidence
Maarssen, NetherlandsHQ checked Sep 4, 202651-20055

“Van slimme regels naar resultaat.”

Source: company website · checked Sep 4, 2026
6
Symbol BVIndirect evidence
Enschede, NetherlandsHQ checked Sep 4, 202611-5055

“Symbol inspireert en verbetert processen Improvement is everywhere Zelfs in de meest succesvolle organisaties liggen kansen voor verbetering.”

Source: company website · checked Sep 4, 2026
7
TrentoIndirect evidence
Heerlen, NetherlandsHQ checked Sep 4, 202611-5049

“Bij Trento draait alles om kennis, samenwerking en resultaat.”

Source: company website · checked Sep 4, 2026
8
UPDIndirect evidence
Bussum, NetherlandsHQ checked Sep 4, 202651-20042

“Everyone has the power to improve.”

Source: company website · checked Sep 4, 2026
9
GJALDIndirect evidence
Zwolle, NetherlandsHQ checked Sep 4, 202611-5031

“Gjald wordt gedreven door innovatie in bedrijfsvoering.”

Source: company website · checked Sep 4, 2026
10
YOU ImproveIndirect evidence
Ae, NetherlandsHQ checked Sep 4, 202611-5026

“Elke organisatie wil sneller, beter, goedkoper en duurzamer werken.”

Source: company website · checked Sep 4, 2026
11
LearningwavesIndirect evidence
Veldhoven, NetherlandsHQ checked Sep 4, 202611-5025

“Hoe kun je in een steeds complexere markt met toenemende wensen en eisen, impact blijven maken?”

Source: company website · checked Sep 4, 2026
12
GroenewoutPartial evidence
Breda, NetherlandsHQ checked Sep 4, 202611-5025

“Founded in 1966, Groenewout provides professional consulting in Logistics and Supply Chains Management.”

Source: company website · checked Sep 4, 2026
13Amsterdam, NetherlandsHQ checked Sep 4, 202651-20025

“Noventum is a management consulting firm focused exclusively on guiding the management teams of global manufacturing and industrial service companies seeking to profitably grow…”

Source: company website · checked Sep 4, 2026
14
NgeniousPartial evidence
Zutphen, NetherlandsHQ checked Sep 4, 202611-5024

“Ngenious is specialised in organisational transition and Lean / Agile performance improvement.”

Source: company website · checked Sep 4, 2026
15
Accelerant ConsultingPartial evidence
Ba, NetherlandsHQ checked Sep 4, 202651-20023

“At Accelerant Consulting, our mission is to partner with organizations globally to achieve and sustain measurable improvements in top- and bottom-line performance.”

Source: company website · checked Sep 4, 2026
16
XtractIndirect evidence
Zuidlaren, NetherlandsHQ checked Sep 4, 202611-5021

“Xtract gelooft erin dat organisaties succesvol kunnen zijn en blijven, door zich continu te ontwikkelen.”

Source: company website · checked Sep 4, 2026
17
Lean SIX Sigma GroepPartial evidence
En, NetherlandsHQ checked Sep 4, 202611-5020

Lean Six Sigma Group is a team of specialists with extensive experience in the implementation of Lean Six Sigma.”

Source: company website · checked Sep 4, 2026
18
Smartr B.VIndirect evidence
Deventer, NetherlandsHQ checked Sep 4, 202611-5018

“Als jong organisatieadviesbureau met ambitie helpt SmartR haar klanten met slimmer organiseren!”

Source: company website · checked Sep 4, 2026
19
Bureau TrompPartial evidence
Al, NetherlandsHQ checked Sep 4, 202611-5018

“Bureau Tromp is specialist op het gebied van procesverbetering met behulp van de Lean Six Sigma methodiek.”

Source: company website · checked Sep 4, 2026
20
Improve To Grow ITGPartial evidence
Zoetermeer, NetherlandsHQ checked Sep 4, 202611-5018

“ITG is een gecertificeerd Lean bureau dat Business x Tech combineert om groei structureel te versnellen.”

Source: company website · checked Sep 4, 2026
21
AccezzIndirect evidence
Utrecht, NetherlandsHQ checked Sep 4, 202611-5014

“Wij brengen onze spotlight mee en schijnen ons licht op jouw organisatie.”

Source: company website · checked Sep 4, 2026
22
ASI ConsultingIndirect evidence
NetherlandsHQ checked Sep 4, 202651-20014

“We get things done.”

Source: company website · checked Sep 4, 2026
23
Lean Management InstituutPartial evidence
Zeist, NetherlandsHQ checked Sep 4, 202611-5012

“The Lean Management Institute was established in 2004 to help organizations increase their customer value and improve processes.”

Source: company website · checked Sep 4, 2026
24
Lean SIX Sigma PartnersPartial evidence
Soesterberg, NetherlandsHQ checked Sep 4, 202611-5012

Lean Six Sigma Partners (LSSP) is een consultancy- en trainingsbureau, gespecialiseerd op het gebied van verbeteren en verandermanagement.”

Source: company website · checked Sep 4, 2026
25
BPM ConsultIndirect evidence
Lc, NetherlandsHQ checked Sep 4, 202611-5012

“Partners in Procesmanagement BPM Consult is een organisatie-adviesbureau dat adviseert over de vormgeving van business process management, opgericht in 2005 Verbeteren van…”

Source: company website · checked Sep 4, 2026

Showing 25 of 583 lean consulting firms based in the Netherlands

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Lean consulting firms based in the Netherlands at a glance

As of Sep 4, 2026
1-10Median size (employees)
AmsterdamLargest hub · 34 HQs
346Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
502
11-50
55
51-200
15
201-500
3
501-1,000
1
1,001-5,000
3

Verified emails by last verification

0–30
0
31–60
111
61–90
908
90–180
522
180+
4

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 lean consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the Netherlands whose own description of what they do matches “lean consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among lean consulting firms, and records with no verified work email. Companies headquartered outside Netherlands 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 an evidence 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, 1,545 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 4, 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.

Lean consulting firms by metro

  • Lean consulting firms in Amsterdam34

Frequently asked

How many lean consulting firms are there based in the Netherlands?

RevenueBase identified 583 lean consulting firms headquartered in the Netherlands 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?

Ijssel Technology Services, headquartered in Zb, tops this list with the largest team on record.

Which city has the most lean consulting firms?

Amsterdam leads with 34 headquartered companies, followed by Utrecht (15) and Amersfoort (13).

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 1,545 verified decision-maker contacts tracked across these 583 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 4, 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.