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Company number
12540798

BITWISE ONCHAIN SOLUTIONS LIMITED

Active
✓ Active company on the official register. Next accounts due 30 September 2026.

Company details

London, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
BITWISE ONCHAIN SOLUTIONS LIMITED
Company number
12540798
Registered office
7 ALBERT BUILDINGS, 49 QUEEN VICTORIA STREET, LONDON, EC4N 4SA · 64 other companies at this postcode
Company type
Private Limited Company
Incorporated on
31 March 2020
Status
Active
Age
6 years
Previous names
ATTESTANT LIMITED (to 18 Aug 2026)
Nature of business (SIC)
62012 — Business and domestic software development · 70229 — Management consultancy activities other than financial management
Accounts — next due
30 Sept 2026
Accounts — last made up to
31 Dec 2024
Confirmation statement — next due
13 Apr 2027
Confirmation statement — last
30 Mar 2026

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Dr Sreejith Das
owns 25–50% of shares · holds 25–50% of voting rights
Notified 31/03/2020
Mr Gary Rowe
owns 25–50% of shares · holds 25–50% of voting rights
Notified 31/03/2020
Mr. James Gregor Mcdonald
owns 25–50% of shares · holds 25–50% of voting rights
Notified 31/03/2020
Mr Robert Olsen
owns 25–50% of shares · holds 25–50% of voting rights
Notified 31/03/2020

Corporate structure

Who controls this company, and who they control in turn

4 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Dr Sreejith Das
born 11/1974 · England owns 25–50% of shares · holds 25–50% of votes Control ended 26/05/2020 Controls 2 companies
Mr Gary Rowe
born 09/1969 · England owns 25–50% of shares · holds 25–50% of votes Control ended 26/05/2020 Controls 3 companies
Mr. James Gregor Mcdonald
born 11/1972 · England owns 25–50% of shares · holds 25–50% of votes Control ended 26/05/2020 Controls 4 companies
Mr Robert Olsen
born 04/1969 · Portugal owns 25–50% of shares · holds 25–50% of votes Control ended 26/05/2020

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
18/08/2026 Registered name changed ATTESTANT LIMITED BITWISE ONCHAIN SOLUTIONS LIMITED
26/05/2020 Person with significant control ceased Mr Robert Olsen
26/05/2020 Person with significant control ceased Mr. James Gregor Mcdonald
26/05/2020 Person with significant control ceased Mr Gary Rowe
26/05/2020 Person with significant control ceased Dr Sreejith Das
31/03/2020 Person with significant control added Mr Robert Olsen
31/03/2020 Person with significant control added Mr. James Gregor Mcdonald
31/03/2020 Person with significant control added Mr Gary Rowe
31/03/2020 Person with significant control added Dr Sreejith Das

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2024
Total assets less current liabilities 1,612
Net assets 1,612
Employees (avg) 11

Documents for BITWISE ONCHAIN SOLUTIONS LIMITED

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Company extract£1.99

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

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Data protection register

No entry found on the ICO register of fee payers under this name.

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Get this company via API

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Frequently asked questions

What is the company number of BITWISE ONCHAIN SOLUTIONS LIMITED?
According to the official registry, the company number of BITWISE ONCHAIN SOLUTIONS LIMITED is 12540798.
Where is BITWISE ONCHAIN SOLUTIONS LIMITED registered?
The registered office is 7 ALBERT BUILDINGS, 49 QUEEN VICTORIA STREET, LONDON, EC4N 4SA.
What is the SIC code of BITWISE ONCHAIN SOLUTIONS LIMITED?
The nature of business is recorded under SIC code 62012 — Business and domestic software development, 70229 — Management consultancy activities other than financial management.
Who controls BITWISE ONCHAIN SOLUTIONS LIMITED?
Dr Sreejith Das is recorded as a person with significant control, and owns 25–50% of shares, holds 25–50% of voting rights.
When are the next accounts of BITWISE ONCHAIN SOLUTIONS LIMITED due?
The next annual accounts are due by 30 September 2026, and the last accounts were made up to 31 December 2024.

About BITWISE ONCHAIN SOLUTIONS LIMITED (12540798)

BITWISE ONCHAIN SOLUTIONS LIMITED is a private limited company incorporated on 31 March 2020 and registered in the United Kingdom under company number 12540798. Its registered office is at 7 ALBERT BUILDINGS, 49 QUEEN VICTORIA STREET, LONDON, EC4N 4SA. The recorded nature of business is business and domestic software development (SIC 62012). The company is currently active , with statutory accounts last made up to 31 December 2024. , and the person with significant control is Dr Sreejith Das. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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