Diagram Capital Ltd
Reference number: 766786
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Authorised by the FCA
This firm is on the FCA register and authorised to carry out regulated activities.
Website, phone number and address
Compare these against whatever you were given. Scammers clone real firm names and reference numbers but use their own phone number and website, so a detail that does not match the register is the clearest warning sign there is.
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Phone number
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Address
Cheyne House, 2 Crown Court, London, EC2V 6JP, United Kingdom
In the full report: 3 background checks
- When diagramcapital.co.uk first appeared online, and whether it can receive email
- What kind of line 020 3750 5503 is
- Who else gives the postcode EC2V 6JP
FCA permissions and consumer protection
- Hold or safeguard your money · Manage or trade investments FSCS may applyEligible investment and pension claims are typically FSCS-protected up to £85,000 per person, depending on the product and your circumstances.
- Give regulated advice FSCS may applyA claim for unsuitable advice is itself FSCS-protected, up to the limit that applies to the product you were advised on.
- Complaints Ombudsman, freeYou can refer a complaint about this firm to the Financial Ombudsman Service for free, whichever activity it relates to.
Show FCA detail (7 permissions)
- Advising on investments (except on Pension Transfers and Pension Opt Outs)
- Arranging (bringing about) deals in investments
- Arranging safeguarding and administration of assets
- Dealing in investments as agent
- Dealing in investments as principal
- Making arrangements with a view to transactions in investments
- Managing investments
Limits on what they may do
- This firm may handle your money in passing but must not hold it, so payments should go to the product provider, never to a personal account.
FCA disciplinary action and complaints
No FCA disciplinary action.
The Financial Ombudsman Service only publishes complaint figures for firms with 30 or more new complaints in six months, so there are none here for this firm.
Companies House record
The company behind the firm: its status, age, registered office and directors.
- Company number
- 10437925 (opens Companies House in a new tab)
- Company status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2016 (10 years old)
- Registered office
- 2 Crown Court, London, EC2V 6JP, England
- Nature of business
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- Activities auxiliary to financial intermediation not elsewhere classified (SIC 66190)
Directors and company secretaries
| Name | Role | Born | Appointed | Other companies |
|---|---|---|---|---|
| Herkishin Jivan Dialdas | Director | Jan 1959 | 30 Sep 2019 | 2 other companies |
| James Robert Sutton Tatchell | Director | Jan 1969 | 17 Apr 2023 | 12 other companies |
| Leonids Kils | Director | Nov 1971 | 3 Mar 2025 | 2 other companies |
Other companies run by these 3 directors
A firm is run by people, and their other companies are their track record: what they built, what closed, and anything that failed. It is the check most people never think to make.
- other companies
- 16
- closed down
- 4
- still active
- 12
In the full report: all 16 companies, named
- What each company does, and whether it is still trading
- Which of these 3 directors sit on each board, and since when
- Any that went into liquidation or administration
- All 10 people who have ever been directors, with their dates
Key dates in its history
Diagram Capital’s history from the FCA register and Companies House, newest first.
2023
1 March 2023
- Ademe Khairakhmetova no longer holds 25–50% of the votes
- Aleksejs Sjarki took control (75–100% of shares)
- Lyazzat Sauranbayeva stopped being the majority owner
Companies House
2017
2 May 2017
- Regulated by the FCA from this date
- FCA imposed a requirement (May control but not hold client money)
- Became authorised by the FCA
FCA register
2016
20 October 2016
- Incorporated at Companies House
- Ademe Khairakhmetova gained 25–50% of the votes
- Lyazzat Sauranbayeva became the majority owner (50–75% of shares)
Companies House
In the full report: all 32 events
- All 32 events in its history (9 shown here)
- Every director appointment and resignation: 21
Firms connected to Diagram Capital
Other FCA-listed firms that share a director, phone number or address with Diagram Capital. A link shows who the firm is tied to, not whether either can be trusted.
- connected firm
- 1
- share its postcode
- 1
In the full report: the connected firm, named
- How it is linked: the same postcode (1)
- Who links it to this firm: the named directors, with dates
Firms like Diagram Capital
Other firms of the same type (investment or fund manager), nearest first.
In London
Firms are listed by type and location, best known first. Being listed is not a recommendation: check any firm before you deal with it.
Get the full report on Diagram Capital
Everything on this page, plus everything locked above, in one dated PDF you can keep, file or send on.
- 16 other companies its directors have run, named
- 3 background checks on its contact details
- All 32 events in its history
- 1 connected firm, named, and who links them
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Frequently asked questions about this firm
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Sources and links
- Its entry on the FCA register register.fca.org.uk
- Its Companies House record gov.uk
- Check your FSCS cover fscs.org.uk
- Complaints the Financial Ombudsman Service can help with financial-ombudsman.org.uk
- Report a scam to the FCA fca.org.uk