Company lists · Data refreshed September 2026

Top 25 Operational resilience consulting firms based in London, United Kingdom

RevenueBase identified 266 operational resilience consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 10,484 professional contacts across them, including 6,137 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers operational resilience consulting firms headquartered in London, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

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 29, 2026 86% judged on-target in blind review
266Companies
10,484Contacts tracked
6,137Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest operational resilience consulting firms based in London, United Kingdom

Ranked by team size
Top 25 of 266 operational resilience consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to operational resilience 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0003,848 contacts →

Indirect evidence

“SLR is a committed partner in our clients’ sustainability journeys.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0002,972 contacts →

Partial evidence

“Control Risks is a global specialist risk consultancy that helps to create secure, compliant and resilient organisations.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0002,179 contacts →

Partial evidence

“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500206 contacts →

Indirect evidence

“Welcome to the Protiviti perspective.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200126 contacts →

Indirect evidence

“We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200118 contacts →

Partial evidence

“PGI helps organisations build digital resilience.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20097 contacts →

Partial evidence

“Databarracks is the business and technology resilience expert.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20052 contacts →

Partial evidence

“ISTARI is a global cybersecurity firm, established by Temasek in 2020, with a unique model for helping clients build cyber resilience.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20044 contacts →

Partial evidence

“CornerStone is an award winning, independent, security and digital building consulting firm with headquarters in the UK.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5039 contacts →

Partial evidence

“SECFORCE are vendor independent offensive security specialists providing effective business risk intelligence and strategic security consulting.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5024 contacts →

Indirect evidence

“A core member of the Chelsea Group Security & Crisis Management Division, Security Exchange is dedicated to the provision of specialist consultancy on a worldwide basis…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“Sicsic Advisory is a leading strategic regulatory and risk consultancy, supporting financial services firms to build and grow sustainable businesses.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“We optimise opportunities for our clients by managing their Risk & Resilience.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Founded in 2015 and headquartered in London UK, Cyber Management Alliance Ltd.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5015 contacts →

Partial evidence

“ESA Risk is one of the fastest growing risk management and business consulting practices in the UK.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Fortify & Partners is an award winning consultancy that strengthens ambitious organisations and helps them to resolve their most complex challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“AJC provides professional consultancy across sectors covering, but not limited to, Accredited Cyber Essentials & CE+ Partner, Fraud Risk Management Services, Risk, Resilience…”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20011 contacts →

Partial evidence

“United Outcomes is a global leader in risk management and business resilience, partnering with exceptional business leaders to address the increasing volume, velocity, and variety…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“Navigating crises.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“RiskSpotlight Empowering organisations to manage emerging risks through risk intelligence and by integrating AI-driven tools and expertise.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“Serving NGOs, multinationals, and Ultra High Net-Worth Individuals worldwide, Consilium Strategies takes a three-pronged approach to mitigate and manage risk to Clients-…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“We are a global consultancy firm that specializes in Digital Risk Management and Data Privacy/Data Protection, while also ensuring robust Cyber Security measures for our clients.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Needhams 1834 is an industry-leading business continuity and resilience management consultancy.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“CyberSRC specialises in 1LoD & 2LoD Operational & IT Risk, Security and Control Management & Transformation through developing, implementing, auditing, risk assessing and managing…”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Strong evidence

“Aldbury International are Operational Resilience specialists who, as a unique multi-disciplinary team, support firms in the financial sector demonstrate that they have robust and…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 266 operational resilience consulting firms based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 6,137 reachable decision-makers.

Free signup · no credit card

View the full list →

Operational resilience consulting firms based in London, United Kingdom at a glance

As of Sep 29, 2026
58.5%Verified-email coverage
39.4Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
188
11-50
61
51-200
12
201-500
2
1,001-5,000
3

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 266 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 operational resilience 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.
What qualifies
Companies headquartered in London, United Kingdom whose own description of what they do matches “operational resilience 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 operational resilience 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 operational resilience consulting firms, and records with no verified work email. Companies headquartered outside London 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 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, 6,137 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 29, 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.

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 operational resilience 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 operational resilience consulting firms are there based in London, United Kingdom?

RevenueBase identified 266 operational resilience consulting firms headquartered in London, 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?

SLR Consulting, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most operational resilience consulting firms?

London leads the United Kingdom with 266 headquartered companies, followed by Edinburgh (14) and Glasgow (10).

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 6,137 verified decision-maker contacts tracked across these 266 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 266 operational resilience consulting firms based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.