Company lists · Data refreshed November 2026

Top 18 Operations consultancies based in Leiden, Netherlands

Name: Operations consultancies based in Leiden, Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 47 companies tracked

RevenueBase identified 47 company matches for operations consultancies associated with Leiden, Netherlands as of November 2026 and tracks 321 professional contacts across them, including 108 with verified work emails. Across the Netherlands, Amsterdam is the largest hub for this category (967 companies); Leiden has 47.

This list covers company matches for operations consultancies associated with Leiden, Netherlands, 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.

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

47Companies

321Contacts tracked

108Verified emails

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The 18 largest operations consultancies based in Leiden, Netherlands

Ranked by team size

Top 18 of 47 company matches for operations consultancies based in Leiden, Netherlands, 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	DE Kleine Consultant	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	51-200	193 contacts →
	Exact match “De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Winston & Partners	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Het beste uit mensen halen, zodat zij zich kunnen ontplooien en presteren en daardoor een grotere bijdrage kunnen leveren aan de organisatie waar zij werken.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Unipartners Leiden	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “UniPartners Leiden is een academisch adviesbureau opgericht in 2016 en gevestigd dichtbij het centrum van Leiden.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Mproof	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “Mproof begeleidt organisaties op ieder niveau en op alle gebieden met het zetten van de volgende stap richting succesvolle dienstverlening.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	J-Link	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	7 contacts →
	Exact match “J-Link offers custom management consulting services in order to overcome cultural differences between Japanese and European business partners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Buro Z Online Marketing	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match “Het buro om je verder te helpen met je website.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Wild Duck	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Leadership Consultants.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Stratelligence	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “Stratelligence pursues research-based consultancy for public and private clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Escimco	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “ESCIMCO BV supports your business in delivering more value to you, your customers and your stakeholders in a pragmatic way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Online Tigers	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Gedreven onderneemster zoekt managers & eigenaren met hart voor de zaak die online willen groeien.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Eqnon Consulting	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Eqnon is a boutique consulting firm providing management consulting, business analysis and investment management services in the renewable energy sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Arena Corporate Finance	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Arena Finance is een succesvol onafhankelijk bedrijfskundig adviesbureau op het terrein van fusies & overnames, alsmede financiering- en recoveryvraagstukken voor Duin- en…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Winworx	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Winworx was founded in 2017.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Connect Flow International BV	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “We are your local partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Blubox BV	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “We specialise in consultancy and interim management solutions concentrating on change management and program management to effectively deliver strategic business transformation…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Wesseldijk & Company	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Wesseldijk & Company is a boardroom consultancy firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Remarcx	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Consultancy and Project management for general Process improvements & Process control Project and production floor assistance Worldwide, on-site and remote.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Early REV OPS	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “We qill work to deliver a strategy that optimizes your tech stack.” 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 “operations consultancies”. 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 18 of 47 operations consultancies based in Leiden, Netherlands

See the full list, filter by size, metro and specialty, and access 108 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operations consultancies based in Leiden, Netherlands at a glance

As of Nov 6, 2026

33.6%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole Netherlands list rather than for Leiden, so it is reported there. Company counts and contact totals on this page are exact for Leiden, over 47 companies.

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.
What qualifies: Company records associated with Leiden, Netherlands whose business descriptions match “operations consultancies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 108 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.

Operations consultancies by metro in the Netherlands

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 “operations consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operations consultancies are there based in Leiden, Netherlands?

RevenueBase identified 47 company matches for operations consultancies associated with Leiden, Netherlands 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?

DE Kleine Consultant tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the Netherlands has the most operations consultancies?

Amsterdam leads the Netherlands with 967 company records, followed by Rotterdam (371) and Utrecht (324). Leiden has 47.

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 108 professional contacts with verified work emails tracked across these 47 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.