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Source: every figure comes from Companies House records and the accounts companies file there. How the figures are produced.

Accounting firms in London ranked by net assets growth

Ranked from each company's filed annual accounts. This list last changed on and was last checked against the data on . Showing the top 50 of 378 companies that qualified.

Companies qualified
378 of 13,065
Ranked first
WE'LL MIND YOUR OWN BUSINESS LTD
Top growth
+382.6%
Data as of

Summary

378 accounting firms with a registered office in London grew their net assets between their latest two annual accounts and met the rules for this list.

WE'LL MIND YOUR OWN BUSINESS LTD (opens in a new tab) ranks first, with net assets rising from £55,029 to £265,585 (+382.6%).

10 of the listed companies were incorporated before 2010. The youngest company on the list is W1 TAX LTD, incorporated in 2023.

Top 10: before and after

  1. Rank 1 WE'LL MIND YOUR OWN BUSINESS LTD (opens in a new tab) £55,029 (2023) to £265,585 (2024) +382.6%
  2. Rank 2 BOGAARD CONSULTING LTD (opens in a new tab) £51,204 (2023) to £239,334 (2024) +367.4%
  3. Rank 3 CAATALYST UK LTD (opens in a new tab) £153,604 (2023) to £590,844 (2024) +284.7%
  4. Rank 4 TAX TRENDS LIMITED (opens in a new tab) £199,396 (2023) to £645,790 (2024) +223.9%
  5. Rank 5 CAS HOUSE LIMITED (opens in a new tab) £90,713 (2024) to £262,779 (2025) +189.7%
  6. Rank 6 S.I.M CONSULTING LTD (opens in a new tab) £73,955 (2023) to £203,088 (2024) +174.6%
  7. Rank 7 RYAN TAX SERVICES NI LIMITED (opens in a new tab) £147,316 (2023) to £393,948 (2024) +167.4%
  8. Rank 8 TEDS MANAGEMENT LIMITED (opens in a new tab) £56,345 (2023) to £145,496 (2024) +158.2%
  9. Rank 9 ASSURE (UK) LIMITED (opens in a new tab) £136,425 (2024) to £346,346 (2025) +153.9%
  10. Rank 10 DE JONG PHILLIPS LTD (opens in a new tab) £79,156 (2023) to £192,434 (2024) +143.1%
Each company's two bars are drawn to its own scale, so the chart shows how much each one grew rather than which is biggest. Every figure is also in the full table below.

The ranking

Accounting firms in London ranked by net assets growth: 50 companies in rank order, with each company's number, latest and previous net assets, change, latest accounts date and age.
Rank Company Net assets Latest accounts Avg. employees Age (yrs)
Previous year Latest year Change Change %
1 WE'LL MIND YOUR OWN BUSINESS LTD (opens in a new tab)05976675 £55,0292023 £265,5852024 +£210,556 +382.6% 54 18
2 BOGAARD CONSULTING LTD (opens in a new tab)14096002 £51,2042023 £239,3342024 +£188,130 +367.4% 1 3
3 CAATALYST UK LTD (opens in a new tab)08565636 £153,6042023 £590,8442024 +£437,240 +284.7% 3 11
4 TAX TRENDS LIMITED (opens in a new tab)08477816 £199,3962023 £645,7902024 +£446,394 +223.9% 6 12
5 CAS HOUSE LIMITED (opens in a new tab)04677778 £90,7132024 £262,7792025 +£172,066 +189.7% 3 22
6 S.I.M CONSULTING LTD (opens in a new tab)07542204 £73,9552023 £203,0882024 +£129,133 +174.6% – 14
7 RYAN TAX SERVICES NI LIMITED (opens in a new tab)12644606 £147,3162023 £393,9482024 +£246,632 +167.4% 21 4
8 TEDS MANAGEMENT LIMITED (opens in a new tab)04271778 £56,3452023 £145,4962024 +£89,151 +158.2% 5 23
9 ASSURE (UK) LIMITED (opens in a new tab)08335359 £136,4252024 £346,3462025 +£209,921 +153.9% 20 12
10 DE JONG PHILLIPS LTD (opens in a new tab)12201553 £79,1562023 £192,4342024 +£113,278 +143.1% 9 5
11 BROADHINTON CONSULTING LIMITED (opens in a new tab)14833448 £53,6712023 £128,1152024 +£74,444 +138.7% – 2
12 TRISTONE CONSULTING LIMITED (opens in a new tab)06615544 £540,0602023 £1,268,4852024 +£728,425 +134.9% – 16
13 DOUBLE POINT LIMITED (opens in a new tab)12818030 £58,5182023 £135,0662024 +£76,548 +130.8% 2 4
14 SIGITA VENGALYTE LTD (opens in a new tab)14005179 £112,9202024 £251,0132025 +£138,093 +122.3% 1 3
15 WINCHURCH SERVICES LTD (opens in a new tab)12349393 £112,1492023 £246,3812024 +£134,232 +119.7% 3 5
16 ORIANA MORRISON LIMITED (opens in a new tab)11262346 £51,6672024 £113,4902025 +£61,823 +119.7% 1 7
17 IG ACCOUNTING & FINANCE LTD (opens in a new tab)07180132 £102,5042024 £221,7602025 +£119,256 +116.3% 8 15
18 DELTA SERVICES LTD (opens in a new tab)06786826 £70,7882024 £152,5872025 +£81,799 +115.6% 8 16
19 WINPROTECH LIMITED (opens in a new tab)11102046 £59,0052023 £119,2892024 +£60,284 +102.2% 2 7
20 SOGIC LTD (opens in a new tab)10936112 £60,0002023 £120,3802024 +£60,380 +100.6% 4 7
21 TA ACCOUNTING SERVICES LIMITED (opens in a new tab)12207797 £64,7982023 £128,2992024 +£63,501 +98.0% 1 5
22 SENESCHAL SPECIALIST SERVICES LIMITED (opens in a new tab)13861623 £681,9422023 £1,324,2712024 +£642,329 +94.2% 5 3
23 MORINA ACCOUNTING LTD (opens in a new tab)13156394 £84,0622024 £163,1832025 +£79,121 +94.1% 3 4
24 FLINTHAM MACKENZIE LIMITED (opens in a new tab)07690934 £94,9312024 £184,1282025 +£89,197 +94.0% 8 13
25 CHRISTIANSONS LIMITED (opens in a new tab)09897000 £906,4812024 £1,757,9952025 +£851,514 +93.9% 27 9
26 BUZZACOTT LIVINGSTONE LIMITED (opens in a new tab)03601142 £624,7892023 £1,188,1532024 +£563,364 +90.2% – 26
27 W1 TAX LTD (opens in a new tab)14906155 £181,3092024 £344,7032025 +£163,394 +90.1% – 2
28 ISMAC LTD (opens in a new tab)09762197 £59,0422023 £108,4682024 +£49,426 +83.7% 2 9
29 SRDS TAX LIMITED (opens in a new tab)13140958 £182,4262024 £333,7012025 +£151,275 +82.9% 7 4
30 ROVEFREE LIMITED (opens in a new tab)06781009 £135,8632023 £242,5792024 +£106,716 +78.5% 1 16
31 AGENTS FOR ACCOUNTING LTD (opens in a new tab)08471307 £76,0852023 £135,2162024 +£59,131 +77.7% 6 12
32 JS XCHANGE LIMITED (opens in a new tab)08708810 £8,015,9582023 £13,955,5312024 +£5,939,573 +74.1% – 11
33 EXCELLENCE ACCOUNTING SERVICES LIMITED (opens in a new tab)10238023 £54,9952023 £94,4782024 +£39,483 +71.8% 2 8
34 THE MUSIC ROYALTY COMPANY LIMITED (opens in a new tab)09247871 £53,1302023 £90,0202024 +£36,890 +69.4% 25 10
35 DINES ACCOUNTANCY LIMITED (opens in a new tab)08160743 £164,7222024 £278,9352025 +£114,213 +69.3% 12 12
36 REZA & CO LIMITED (opens in a new tab)04046693 £56,9752023 £96,2372024 +£39,262 +68.9% 4 24
37 GOOD ACCOUNTS UK LTD (opens in a new tab)09416799 £143,5142024 £241,4702025 +£97,956 +68.3% 3 10
38 ONSIDE ACCOUNTING LIMITED (opens in a new tab)13428300 £138,7522023 £233,0712024 +£94,319 +68.0% 19 4
39 APHELEIAM LIMITED (opens in a new tab)12355691 £70,1172023 £116,3422024 +£46,225 +65.9% 1 5
40 BORG TECH LTD (opens in a new tab)13966187 £62,6992023 £101,9482024 +£39,249 +62.6% 12 3
41 THE ACCOUNTING CENTRE LIMITED (opens in a new tab)04692731 £417,0852023 £676,4832024 +£259,398 +62.2% 11 22
42 CHILLED CONSULTING LIMITED (opens in a new tab)10021093 £64,6992024 £104,9012025 +£40,202 +62.1% 1 9
43 COWARDANDCO LTD (opens in a new tab)12879188 £63,1252023 £101,6942024 +£38,569 +61.1% 1 4
44 ACCURATE ACCOUNTANT CO LTD (opens in a new tab)07332696 £88,3372023 £141,4112024 +£53,074 +60.1% 8 14
45 TAX PARTNERS LIMITED (opens in a new tab)06623956 £178,5722023 £285,5882024 +£107,016 +59.9% 4 16
46 ALLIED ADVANTAGE LIMITED (opens in a new tab)11699881 £59,7902023 £95,1612024 +£35,371 +59.2% 1 6
47 STRAND FINANCE LIMITED (opens in a new tab)12155408 £111,5752023 £176,7342024 +£65,159 +58.4% 1 5
48 GRANT AND GRAHAM LTD (opens in a new tab)11575770 £179,7922023 £283,8862024 +£104,094 +57.9% 1 6
49 OLIVE TREE PRODUCTIONS LTD (opens in a new tab)13434967 £103,5342023 £162,5112024 +£58,977 +57.0% 1 3
50 ZMARTLY LTD (opens in a new tab)11601091 £59,4422023 £93,0002024 +£33,558 +56.5% 4 6
Download CSV of this ranking 50 rows, the same as the table. “–” means the figure was not filed.

How this list was made

Industry
Companies with any of these SIC codes on their Companies House record:
  • 69201 – Accounting and auditing activities
  • 69202 – Bookkeeping activities
  • 69203 – Tax consultancy
Location
The post town of the registered office address is London.
Periods compared
Each company's latest annual accounts against its accounts for the year before. Companies whose two latest accounts are not for consecutive years are left out.
Ranking
Ranked by the percentage change in net assets between the latest two consecutive annual accounts. Companies must have started with net assets of at least £50,000, so very small starting values cannot top the list.
Exclusions
Companies that are dissolved, in liquidation, in administration or proposed to be struck off; dormant companies; and companies whose latest accounts end more than 21 months before the newest accounts in the data (or are dated after it). Figures that cannot be right, which are most likely filing errors, are also left out:
  • net assets more than 50 times the year before
  • net assets above £100,000,000 in micro-entity accounts, or above £1,000,000,000 in small company accounts
Companies checked
Companies with a matching SIC code in London13,065
Not active−1,425
Dormant−1,154
Latest accounts too old or wrongly dated−5,591
Figure missing for one of the two years−1,046
Starting figure below the minimum−3,211
No increase−260
Figure too large or inconsistent to be reliable−0
Qualified for this list378