Company lists · Data refreshed September 2026
Top 23 Business consultancies based in Southampton, United Kingdom
RevenueBase identified 64 business consultancies headquartered in Southampton, United Kingdom as of September 2026 and tracks 306 professional contacts across them, including 100 with verified work emails. Across the United Kingdom, London is the largest hub for this category (5,730 companies); Southampton has 64.
This list covers business consultancies headquartered in Southampton, 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 23, 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.
The 23 largest business consultancies based in Southampton, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 77 contacts → | ||||
Indirect evidence “If you are looking for a team of reliable, approachable, and proactive accountants and business advisers, who will work alongside you to help you succeed, then we can help.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40 contacts → | ||||
Indirect evidence “Accountants & Business Advisors with offices in Southampton, Basingstoke and Andover.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 10 contacts → | ||||
Indirect evidence “Enterprise South, part of Business South Group, offers impartial and confidential one to one advice from our team of nationally accredited business advisers who have years of…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8 contacts → | ||||
Indirect evidence “We partner with forward-thinking change makers, committed to making an impact, and deliver effective marketing, communications, and technology programmes that yield results.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 7 contacts → | ||||
Indirect evidence “Delivering excellence in everything people.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6 contacts → | ||||
Indirect evidence “At Netshell, we help businesses move beyond outdated systems and manual processes by implementing intelligent, future‑ready tools and strategies.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Indirect evidence “At Zest we help you win new business and retain loyal customers by developing profitable sales strategies, training you to generate high quality leads and improving your sales…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 contacts → | ||||
Indirect evidence “Human Resources Consultancy specialising in the SME market throughout the UK” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4 contacts → | ||||
Indirect evidence “Helping you achieve the best outcome for your customers and your company” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 contacts → | ||||
Indirect evidence “Finance & Accountancy • Accountancy services pro, systems design & implementation together with the IT & related MIS sys & processes.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Indirect evidence “Perfect Concept is a specialised consultancy firm dedicated to fostering the growth of businesses in the UK and around the world through strategic planning across a variety of…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2 contacts → | ||||
Indirect evidence “Leverworks supports dynamic service businesses with knowledge, hard-earned experience and proven methodology.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 contacts → | ||||
Indirect evidence “We are an independent of chartered certified accountants servicing Hampshire, Isle of Wight and surrounding areas.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 contacts → | ||||
Indirect evidence “At LS Consulting & Finance, Lisa is passionate about empowering SME business leaders to achieve their strategic goals.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Indirect evidence “We are a close-knit management consultancy that provides expert support to the public sector and not for profit organisations.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Indirect evidence “Advisory Plus is one of the leading corporate finance and advisory boutiques based in the south, working nationally and internationally on behalf of our clients.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect evidence “MDC Advisory is a business psychology and leadership consultancy with expertise across psychometric assessment, leadership assessment & executive coaching and organisational…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 contacts → | ||||
Indirect evidence “EXPIRIC LTD is a Management, Service & Technology consulting company based out of SOUTHAMPTON, United Kingdom.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Indirect evidence “Bringing clarity and control back into the business of production where client and agency can work in harmony!” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Indirect evidence “AB Online Strategies specialises in helping you, the business owner, the entrepreneur, devise strategies that help you do three vital things.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Launched by Isabel Johnston in 2018, IJ Communications is what you call a ‘small, yet mighty’ communications consultancy.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “Multiply provides agencies and businesses with straightforward strategy.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Ozboz exists for one reason: to help SMEs and start-ups build better businesses.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: business consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names business consultancies.
- Partial evidence
- Its own public description names part of business consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name business consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 23 of 64 business consultancies based in Southampton, United Kingdom
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Business consultancies based in Southampton, United Kingdom at a glance
As of Sep 23, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for Southampton, so it is reported there. Company counts and contact totals on this page are exact for Southampton, over 64 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 business consultancies, 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 Southampton, United Kingdom whose own description of what they do matches “business consultancies”. 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 business consultancies), 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 business consultancies, and records with no verified work email. Companies headquartered outside Southampton 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, 100 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 23, 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.
Business consultancies by metro in the United Kingdom
- Business consultancies in London5730
- Business consultancies in Manchester355
- Business consultancies in Birmingham202
- Business consultancies in Glasgow182
- Business consultancies in Bristol179
- Business consultancies in Edinburgh176
- Business consultancies in Leeds161
- Business consultancies in Cambridge126
- Business consultancies in Nottingham110
- Business consultancies in Reading101
- Business consultancies in Oxford95
- Business consultancies in Sheffield88
- Business consultancies in Belfast81
- Business consultancies in Liverpool78
- Business consultancies in Leicester70
- Business consultancies in Cardiff67
- Business consultancies in Derby65
- Business consultancies in Milton Keynes61
- Business consultancies in Brighton60
- Business consultancies in York60
- Business consultancies in Bath59
- Business consultancies in Northampton57
- Business consultancies in Coventry56
- Business consultancies in Cheltenham54
- Business consultancies in Guildford51
- Business consultancies in Newcastle Upon Tyne51
- Business consultancies in Norwich51
- Business consultancies in Winchester48
- Business consultancies in Chester46
- Business consultancies in Aberdeen45
- Business consultancies in Bournemouth44
- Business consultancies in Chelmsford41
- Business consultancies in Exeter39
- Business consultancies in Peterborough39
- Business consultancies in Harrogate38
- Business consultancies in Huddersfield38
- Business consultancies in Solihull38
- Business consultancies in Watford37
- Business consultancies in Preston36
- Business consultancies in Basingstoke34
- Business consultancies in Maidenhead33
- Business consultancies in Bedford31
- Business consultancies in Poole31
- Business consultancies in Swindon31
- Business consultancies in Uk30
- Business consultancies in Ipswich29
- Business consultancies in Durham27
- Business consultancies in Stockport26
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 business consultancies, 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 business consultancies are there based in Southampton, United Kingdom?
RevenueBase identified 64 business consultancies headquartered in Southampton, 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?
HJS Accountants, headquartered in Southampton, tops this list with the largest team on record.
Which city in the United Kingdom has the most business consultancies?
London leads the United Kingdom with 5,730 headquartered companies, followed by Manchester (355) and Birmingham (202). Southampton has 64.
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 100 verified decision-maker contacts tracked across these 64 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 23, 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 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.
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