Appointed representative
This firm does not hold FCA authorisation of its own, and acts under a principal firm, which is legally responsible for its regulated business.
- Appointed for 8 years
- Protected through the principal
- No FCA actions
- Active company since 2019
- Accounts filed up to 30 June 2025
Responsible principal firm
BROWN & BROWN INSURANCE BROKERS (UK) LIMITED Reference number: 745618 View firm →What does this mean?
- An appointed representative (AR) can carry out regulated financial services, but is not directly authorised by the FCA. A principal firm holds the authorisation and is legally responsible for the AR's conduct.
- SIOMA LIMITED (FRN 805839) is an AR of BROWN & BROWN INSURANCE BROKERS (UK) LIMITED (FRN 745618). When you use SIOMA's services, the FCA authorisation sits with the principal firm.
- Example: if you take financial advice from SIOMA, complaints and compensation usually follow the same rules as dealing with the principal, but this depends on the product and your circumstances.
- Before you proceed, confirm contact details match the official FCA register for both firms. Scammers sometimes clone legitimate AR names and FRNs but use fake phone numbers and websites.
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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No website on the FCA register
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Phone number
-
Address
Floor 3, 38 South Molton Street, London, W1K 5RL, United Kingdom
In the full report: 2 background checks
- What kind of line 020 4586 1202 is, and the 2 other firms that give it
- Who else gives the postcode W1K 5RL
Other names (2)
If you were contacted under any of these names, it is this firm.
- Sioma Insurance Consultants Trading name: A name it trades under now.
- ALEXANDER JAKE MARGOLIN Former name: A name it was registered under before.
FCA permissions and consumer protection
- Protection through the principal firmProtection works through Brown & Brown Insurance Brokers (UK) Limited, the principal firm responsible for this firm's regulated activity. FSCS cover and the Financial Ombudsman Service apply as they would to the principal.
- Complaints Ombudsman, freeYou can refer a complaint about this firm to the Financial Ombudsman Service for free, whichever activity it relates to.
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
- 12096872 (opens Companies House in a new tab)
- Company status
- Active
- Company type
- Private limited company
- Incorporated
- 11 July 2019 (7 years old)
- Registered office
- Floor 3 38 South Molton Street, London, W1K 5RL, England
- Nature of business
-
- Activities of insurance agents and brokers (SIC 66220)
Directors and company secretaries
| Name | Role | Born | Appointed | Other companies |
|---|---|---|---|---|
| Alexander Jake Margolin | Director | Jun 1991 | 11 Jul 2019 | 6 other companies |
Other companies run by its director
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
- 6
- closed down
- 1
- are FCA-registered
- 2
In the full report: all 6 companies, named
- What each company does, and whether it is still trading
- Which of its director sits on each board, and since when
- Any that went into liquidation or administration
- The 2 on the FCA register
Filed accounts and finances
Total equity
£489k
+52% from £322k
Cash at bank
£202k
+169% from £75.1k
Owed within a year
£224k
−18% from £275k
Assets and liabilities
In the full report: all 5 years of accounts
- Every year from 2021 to 2025
- The chart, over every year
- Every filed figure, year by year
About these figures
- Turnover
- Money taken from sales in the year, before any costs.
- Profit before tax
- What was left after the year’s costs, before corporation tax. A minus figure is a loss.
- Net assets, or total equity
- Everything the company owns minus everything it owes. A minus figure means it owes more than it owns.
- Total assets and total liabilities
- Everything the company owns, and everything it owes, on the last day of the year. The gap between them is its net assets.
- Cash at bank
- Money in the company’s accounts on the last day of the year.
- Owed within a year, owed after a year
- Debts and bills due in the next twelve months, and those due later.
Accounts filed at Companies House for company 12096872. Every figure is as filed, apart from total assets and total liabilities, which are added up from filed figures. Nothing is estimated.
Key dates in its history
Sioma’s history from the FCA register and Companies House, newest first.
2020
16 June 2020
- Changed its registered name from "ALEXANDER JAKE MARGOLIN"
FCA register
2019
11 July 2019
- Incorporated at Companies House
- Alexander Jake Margolin took control (75–100% of shares)
- Alexander Jake Margolin appointed as a director
Companies House
2018
1 May 2018
- Began trading as "Sioma Insurance Consultants"
FCA register
5 April 2018
- Became an appointed representative
FCA register
Director appointments and resignations, and trading names, appear under All events.
Firms connected to Sioma
Other FCA-listed firms that share a director, phone number or address with Sioma. A link shows who the firm is tied to, not whether either can be trusted.
- connected firms
- 3
- share a director
- 2
- share its phone number
- 2
In the full report: all 3 connected firms, named
- How each is linked: shared directors (2), the same phone number (2), the same postcode (3)
- Who links each one: the named directors, with dates
Firms like Sioma
Other firms of the same type (insurance broker), 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 Sioma
Everything on this page, plus everything locked above, in one dated PDF you can keep, file or send on.
- 6 other companies its directors have run, named
- 2 background checks on its contact details
- 5 years of accounts, charted
- All 6 events in its history
- 3 connected firms, 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
- Complaints the Financial Ombudsman Service can help with financial-ombudsman.org.uk
- Report a scam to the FCA fca.org.uk