Company lists · Data refreshed September 2026

Top 23 Business consulting firm services based in Southampton, United Kingdom

RevenueBase identified 64 business consulting firm services headquartered in Southampton, United Kingdom as of September 2026 and tracks 274 professional contacts across them, including 75 with verified work emails. Across the United Kingdom, London is the largest hub for this category (5,751 companies); Southampton has 64.

This list covers business consulting firm services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review
64Companies
274Contacts tracked
75Verified emails
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The 23 largest business consulting firm services based in Southampton, United Kingdom

Ranked by team size
Top 23 of 64 business consulting firm services based in Southampton, United Kingdom, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business consulting firm services: 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 evidenceSouthampton, United KingdomHQ checked Sep 23, 202651-20077 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, 2026
2Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 202611-5012 contacts →

Indirect evidence

“At SHMS Accountants, our focus is offer the best financial advice and an honest service guaranteed every time!”

Source: RevenueBase Database · checked Sep 23, 2026
3Strong evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-1011 contacts →

Strong evidence

“Horizon Seven are specialists in visionary sourcing, a new breed of consulting firm that believes in helping businesses realise their future by leveraging the power of sourcing.”

Source: RevenueBase Database · checked Sep 23, 2026
4Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 202611-508 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, 2026
5Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-106 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, 2026
6Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-105 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, 2026
7Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-104 contacts →

Indirect evidence

“Helping you achieve the best outcome for your customers and your company”

Source: RevenueBase Database · checked Sep 23, 2026
8Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-103 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, 2026
9Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 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, 2026
10Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“Leverworks supports dynamic service businesses with knowledge, hard-earned experience and proven methodology.”

Source: RevenueBase Database · checked Sep 23, 2026
11Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“The NHS is the largest organisation in the world.”

Source: RevenueBase Database · checked Sep 23, 2026
12Strong evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Strong evidence

“At LS Consulting & Finance, Lisa is passionate about empowering SME business leaders to achieve their strategic goals.”

Source: RevenueBase Database · checked Sep 23, 2026
13Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 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, 2026
14Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“Best in Class Pipeline Management & Sales Forecasting For B2B Sales Teams”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 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, 2026
16Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“Providing our experience, accreditations and love of technology on a month-by-month basis, contract free, to allow your business to thrive.”

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“As IDA Career, our speciality is supporting individuals who want to overcome job search challenges and find a good job, move forward/up in the career ladder, and make a career…”

Source: RevenueBase Database · checked Sep 23, 2026
18Strong evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 contacts →

Strong evidence

“EXPIRIC LTD is a Management, Service & Technology consulting company based out of SOUTHAMPTON, United Kingdom.”

Source: RevenueBase Database · checked Sep 23, 2026
19Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“Advisory | Leadership | Coaching I set up Kind Human following a twenty year career in finance, governance, leadership and mental health and wellbeing as a PwC Partner.”

Source: RevenueBase Database · checked Sep 23, 2026
20Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 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, 2026
21Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 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, 2026
22Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“Multiply provides agencies and businesses with straightforward strategy.”

Source: RevenueBase Database · checked Sep 23, 2026
23Indirect evidenceSouthampton, United KingdomHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“Ozboz exists for one reason: to help SMEs and start-ups build better businesses.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 23 of 64 business consulting firm services based in Southampton, United Kingdom

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Business consulting firm services based in Southampton, United Kingdom at a glance

As of Sep 23, 2026
27.4%Verified-email coverage
4.3Average contacts per company
1-10Median size (employees)
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
7
51-200
1

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 consulting firm services, 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 consulting firm services”. 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 consulting firm services), 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 consulting firm services, 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, 75 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 consulting firm services by metro in the United Kingdom

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 consulting firm services, 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 consulting firm services are there based in Southampton, United Kingdom?

RevenueBase identified 64 business consulting firm services 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 consulting firm services?

London leads the United Kingdom with 5,751 headquartered companies, followed by Manchester (333) and Birmingham (189). 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 75 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.