Company lists · Data refreshed September 2026

Top 18 Organizational development consulting firms based in York, United Kingdom

RevenueBase identified 52 organizational development consulting firms headquartered in York, United Kingdom as of September 2026 and tracks 140 professional contacts across them, including 39 with verified work emails. London is the largest hub.

This list covers organizational development consulting firms headquartered in York, United Kingdom, 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 5, 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 5, 2026 86% judged on-target in blind review
52Companies
140Contacts tracked
39Verified emails
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The 18 largest organizational development consulting firms based in York, United Kingdom

Ranked by team size
Top 18 of 52 organizational development consulting firms based in York, United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names organizational development 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
1York, United KingdomHQ checked Sep 5, 202611-5022

“At TMSDI we’re passionate about personal, team and organisational development.”

Source: company website · checked Sep 5, 2026
2York, United KingdomHQ checked Sep 5, 202611-5012

“PRO-DEVELOPMENT (UK) LIMITED is a company based at Forest Farm Business Park, Fulford, York.”

Source: company website · checked Sep 5, 2026
3
Mcmillan And Associates LTDIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-107

“An HR and OD consultancy service working across all sectors.”

Source: company website · checked Sep 5, 2026
4
Instil LimitedIndirect evidence
York, United KingdomHQ checked Sep 5, 202611-507

“A training company specialising in leadership and management, sales, employee engagement, and other people related skills.”

Source: company website · checked Sep 5, 2026
5
Promethean ExecutiveIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-105

“Promethean Executive is a strategic business partner.”

Source: company website · checked Sep 5, 2026
6
GPC Skills LTDPartial evidence
York, United KingdomHQ checked Sep 5, 202611-502

“GPC is an innovative people-consulting company delivering impact for businesses across the UK and internationally.”

Source: company website · checked Sep 5, 2026
7York, United KingdomHQ checked Sep 5, 20261-102

“WE ARE FRANKLY We’re a creative, straight-talking business and we’re here to help you unlock your leadership potential.”

Source: company website · checked Sep 5, 2026
8
Andrea Morrison CoachingIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-102

“Andrea Morrison is a highly experienced Transformational Coach, Psychologist, and TEDx speaker.”

Source: company website · checked Sep 5, 2026
9
Business HorsepowerIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-101

“At Business HorsePower, we help scaling organisations reinvent how leadership teams and functions work together, so execution speeds up, trust strengthens, and performance becomes…”

Source: company website · checked Sep 5, 2026
10York, United KingdomHQ checked Sep 5, 20261-101

“Boutique leadership and development consultancy, specialising in strengthening leadership, increasing personal and professional impact and growing confidence.”

Source: company website · checked Sep 5, 2026
11
AlbeitIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-101

“We work with purpose-driven organisations and the agencies that serve them - helping them understand their audiences, develop strategies they can act on, and build the internal…”

Source: company website · checked Sep 5, 2026
12
Boost-ConsultancyIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-101

“Bringing a wealth of experience and knowledge, Boost Consultancy provides practical advice and support to help businesses achieve excellence and sustainable growth.”

Source: company website · checked Sep 5, 2026
13
Look UP ConsultingPartial evidence
York, United KingdomHQ checked Sep 5, 20261-101

“Look Up Consulting is the inspiration of Jonathan Wurr, a professional with 25 years in the manufacturing and industrial business sectors.”

Source: company website · checked Sep 5, 2026
14York, United KingdomHQ checked Sep 5, 20261-101

“UNDERSTANDING & LEARNING LTD is a management consulting company based in the UK but contributing worldwide.”

Source: company website · checked Sep 5, 2026
15
Dare To SucceedPartial evidence
York, United KingdomHQ checked Sep 5, 20261-101

“Dare To Succeed empowers businesses to scale smarter and lead with confidence by aligning business strategy, leadership development, and sustainable growth practices.”

Source: company website · checked Sep 5, 2026
16York, United KingdomHQ checked Sep 5, 20261-101

“SJC ENABLING IMPROVEMENTS LTD is a management consulting company that focuses on helping businesses unlock operational performance issues or project delivery to help you achieve…”

Source: company website · checked Sep 5, 2026
17
HR School LTDIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-101

“We have exceptional expertise and skill in managing and dealing with the full range of strategic and operational HR activities.”

Source: company website · checked Sep 5, 2026
18
Octopus Leadership LTDIndirect evidence
York, United KingdomHQ checked Sep 5, 20261-101

“Independent consultant/strategic advisory and mentor to small/mid sized company owners and senior leaders who want to enhance their governance, integrity and systems to achieve…”

Source: company website · checked Sep 5, 2026

Showing 18 of 52 organizational development consulting firms based in York, United Kingdom

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Organizational development consulting firms based in York, United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 3969 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
47
11-50
5

Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for York, over 52 companies.

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 organizational development 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 York, United Kingdom whose own description of what they do matches “organizational development 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 organizational development consulting firms, and records with no verified work email. Companies headquartered outside York 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, 39 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 5, 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.

Organizational development consulting firms by metro in the United Kingdom

Frequently asked

How many organizational development consulting firms are there based in York, United Kingdom?

RevenueBase identified 52 organizational development consulting firms headquartered in York, United Kingdom 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?

TMS Development International LTD, headquartered in York, tops this list with the largest team on record.

Which city has the most organizational development consulting firms?

London leads with 3969 headquartered companies, followed by Manchester (234) and Bristol (168).

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 39 verified decision-maker contacts tracked across these 52 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 5, 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.