Company lists · Data refreshed September 2026

Top 25 Accounting and consultancy services based in Harrow, United Kingdom

Name: Accounting and consultancy services based in Harrow, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 55 companies tracked

RevenueBase identified 55 accounting and consultancy services headquartered in Harrow, United Kingdom as of September 2026 and tracks 462 professional contacts across them, including 179 with verified work emails. London is the largest hub.

This list covers accounting and consultancy services headquartered in Harrow, 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 22, 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 22, 2026 86% judged on-target in blind review

55Companies

462Contacts tracked

179Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest accounting and consultancy services based in Harrow, United Kingdom

Ranked by team size

Top 25 of 55 accounting and consultancy services based in Harrow, United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting and consultancy 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MG Group	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	73 contacts →
	Partial evidence “MG Group is a multi-disciplinary practice providing accounting, tax, audit, legal and business consulting services.” Source: RevenueBase Database · checked Sep 22, 2026
2	Merali's Chartered Accountants & Registered Auditors	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	64 contacts →
	Partial evidence “Meralis Chartered Accountants and Registered Auditors were set up by Mahmud Merali to provide accountancy, auditing and consultancy services to clients both at national and…” Source: RevenueBase Database · checked Sep 22, 2026
3	RDP Newmans LLP	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	51-200	61 contacts →
	Indirect evidence “Since 1962 RDP Newmans have been providing businesses with accountancy and taxation services, which are tailored to help our clients achieve their financial goals.” Source: RevenueBase Database · checked Sep 22, 2026
4	Charterhouse Accountants Limited	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “At Charterhouse, we have proudly served our clients from our Harrow office for over 50 years, and we are not your typical firm of accountants.” Source: RevenueBase Database · checked Sep 22, 2026
5	Makesworth Accountants	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	23 contacts →
	Indirect evidence “Established in 2012, Makesworth Limited has earned a stellar reputation for delivering exceptional accountancy and advisory services to a diverse range of clients.” Source: RevenueBase Database · checked Sep 22, 2026
6	3e's Accountants Group	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	18 contacts →
	Partial evidence “Established in 2006, 3ES Accountants Ltd is a Harrow-based accountancy firm offering a myriad of accounting and financial services to businesses of all types.” Source: RevenueBase Database · checked Sep 22, 2026
7	Arithma LLP	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “Providing effective tax and accounting solutions to owner managed businesses and private clients.” Source: RevenueBase Database · checked Sep 22, 2026
8	DNS Associates LTD	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
9	Smartax	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	11 contacts →
	Indirect evidence “We are a firm of Chartered Tax Advisers and Chartered Certified Accountants based in Harrow, Middlesex.” Source: RevenueBase Database · checked Sep 22, 2026
10	Malde & CO	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “A general practice firm that is involved in diverse sectors such as charities, construction, entertainment, export/import, IT, media, medical/health, property development, retail…” Source: RevenueBase Database · checked Sep 22, 2026
11	Lawrence & CO	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “Chartered Accountants and Business Development Advisors in Harrow We are a firm of Business Advisers and Chartered Accountants based in Harrow offering accountancy and general…” Source: RevenueBase Database · checked Sep 22, 2026
12	RNS Chartered Accountants & Business Advisers	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “RNS Chartered Accountants - the home of professional audit, accountancy and taxation services delivered with personal care and attention.” Source: RevenueBase Database · checked Sep 22, 2026
13	Bewise Consultancy LTD	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	8 contacts →
	Partial evidence “Bewise Consultancy Limited Chartered Certified Accountants, Tax Advisors and Business Consultants Situated in the heart of London.” Source: RevenueBase Database · checked Sep 22, 2026
14	JP Accountancy And Taxation Solutions LTD	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
15	St-Partnership	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	6 contacts →
	Indirect evidence “We are a team of reliable, approachable, and proactive accountants and have a genuine specialism in small to medium enterprises and owner managed business.” Source: RevenueBase Database · checked Sep 22, 2026
16	Redhouse & Associates Business Services LTD	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “Redhouse & Associates is an Accounting Services Bureau offering a personal and professional service to businesses, freeing them from administration and promoting growth.” Source: RevenueBase Database · checked Sep 22, 2026
17	HNS Accountants Limited	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “At HNS Accountants Limited, we curate strategic, practical, and personalised accounting and tax solutions for private clients, companies, entrepreneurs, and their businesses.” Source: RevenueBase Database · checked Sep 22, 2026
18	EV Accountants Limited	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	3 contacts →
	Indirect evidence “We don't just crunch numbers.” Source: RevenueBase Database · checked Sep 22, 2026
19	Macalvins Limited	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
20	Ayman Tyler Associates	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	3 contacts →
	Indirect evidence “Ayman Tyler associates are accountants and business advisors who have been in general practice for over 25 years having helped a wide variety of clients in meeting their aims of…” Source: RevenueBase Database · checked Sep 22, 2026
21	Flexi Financial Solution	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	11-50	2 contacts →
	Indirect evidence “The Flexi Financial Solutions came into existence in 2007 when a Team of Experienced Professionals from varied expertise in solving Financial Problems decided to come together to…” Source: RevenueBase Database · checked Sep 22, 2026
22	JP Accountancy & Taxation Solutions LTD	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “At JP Accountancy and Taxation Solutions, we build longstanding relationships with our clients; getting to know their businesses and making their growth our priority.” Source: RevenueBase Database · checked Sep 22, 2026
23	Effective Accounting LTD	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence “Starting your own business can be a daunting task with many things to think about.” Source: RevenueBase Database · checked Sep 22, 2026
24	Banner & Associates	Indirect evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence “Banner & Associates is a long-standing firm of Chartered Accountants who believe professionalism should come hand-in-hand with personal, go-the-extra-mile service.” Source: RevenueBase Database · checked Sep 22, 2026
25	NM Accounting	Partial evidence	Harrow, United KingdomHQ checked Sep 22, 2026	1-10	1 contacts →
	Partial evidence “NM Accounting is based in London and offers a range of accountancy services to help you manage and grow your business.” Source: RevenueBase Database · checked Sep 22, 2026

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: accounting and consultancy services. 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 accounting and consultancy services.
Partial evidence: Its own public description names part of accounting and consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting and consultancy services. 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 25 of 55 accounting and consultancy services based in Harrow, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 179 reachable decision-makers.

Free signup · no credit card

View the full list →

Accounting and consultancy services based in Harrow, United Kingdom at a glance

As of Sep 22, 2026

38.7%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

2790.9%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United Kingdom list rather than for Harrow, so it is reported there. Company counts and contact totals on this page are exact for Harrow, over 55 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 accounting and consultancy 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 Harrow, United Kingdom whose own description of what they do matches “accounting and consultancy 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 accounting and consultancy 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 accounting and consultancy services, and records with no verified work email. Companies headquartered outside Harrow 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, 179 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 22, 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.

Accounting and consultancy 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 accounting and consultancy 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 accounting and consultancy services are there based in Harrow, United Kingdom?

RevenueBase identified 55 accounting and consultancy services headquartered in Harrow, 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?

MG Group, headquartered in Harrow, tops this list with the largest team on record.

Which city has the most accounting and consultancy services?

London leads with 1535 headquartered companies, followed by Manchester (159) and Birmingham (147).

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 179 verified decision-maker contacts tracked across these 55 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 55 accounting and consultancy services based in Harrow, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Accounting and consultancy services by geography

Browse the directory

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.