Decile One Limited

Reference number: 946798

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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.

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.
  • Decile One Limited (FRN 946798) is an AR of RESOLUTION UNDERWRITING PARTNERSHIP LIMITED (FRN 308113). When you use Decile One's services, the FCA authorisation sits with the principal firm.
  • Example: if you take financial advice from Decile One, 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.

  • No website on the FCA register

  • Phone number

    020 3848 5221

  • Address

    4th Floor, 153 Fenchurch Street, London, EC3M 6BB, United Kingdom

In the full report: 2 background checks

  • What kind of line 020 3848 5221 is
  • Who else gives the postcode EC3M 6BB
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FCA permissions and consumer protection

  • Protection through the principal firm
    Protection works through Resolution Underwriting Partnership 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, free
    You 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 status
Active
Company type
Private limited company
Incorporated
19 February 2021 (5 years old)
Registered office
19th Floor 1 Westfield Avenue, London, E20 1HZ, United Kingdom
Nature of business
  • Non-life insurance (SIC 65120)

Directors and company secretaries

Name Role Born Appointed Other companies
Christopher Gill Harman Director Sep 1950 19 Feb 2021 13 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
13
closed down
1
are FCA-registered
4

In the full report: all 13 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 4 on the FCA register, including one no longer authorised
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Filed accounts and finances

Year to 31 December 2025Dormant company accountsNot audited

Net assets

£1

Same as £1

Cash at bank

£1

Same as £1

These accounts were filed as dormant: the company reported no significant trading in the period.

Net assets

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
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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 13213047. Figures are exactly as filed; nothing is estimated.

Key dates in its history

Decile One’s history from the FCA register and Companies House, newest first.

2025

14 April 2025

  • Decile One Holdings Limited gave up control
  • Resolution Underwriting Holdings Limited took control (75–100% of shares)

Companies House

2021

10 March 2021

  • Became an appointed representative

FCA register

19 February 2021

  • Incorporated at Companies House
  • Decile One Holdings Limited took control (75–100% of shares)
  • Christopher Gill Harman appointed as a director

Companies House

Director appointments and resignations, and trading names, appear under All events.

Firms connected to Decile One

Other FCA-listed firms that share a director, phone number or address with Decile One. A link shows who the firm is tied to, not whether either can be trusted.

connected firms
3
share its postcode
3
past links
3

In the full report: all 3 connected firms, named

  • How each is linked: the same postcode (3)
  • Who links each one: the named directors, with dates
  • 3 past links through former directors
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Firms like Decile One

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 Decile One

Everything on this page, plus everything locked above, in one dated PDF you can keep, file or send on.

  • 13 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

Is Decile One Limited FCA authorised?
Decile One Limited (FRN 946798) is not directly authorised. It is an appointed representative acting under the responsibility of a directly authorised principal firm.
What does appointed representative mean for Decile One?
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. Decile One Limited (FRN 946798) is an AR of RESOLUTION UNDERWRITING PARTNERSHIP LIMITED (FRN 308113). When you use Decile One's services, the FCA authorisation sits with the principal firm. Example: if you take financial advice from Decile One, 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.
What is Decile One’s phone number?
The FCA register lists the phone number 020 3848 5221 for Decile One. If you were given different contact details, use these to check with the firm before going any further.
Is Decile One a scam or clone?
Decile One is a genuine FCA-listed firm, and the FCA has published no warnings about fake versions of it. Scammers do copy real firms, though, so check that any contact details you were given match the ones on the register.
Is my money safe with Decile One?
Protection works through Resolution Underwriting Partnership Limited, the principal firm responsible for Decile One's regulated activity. FSCS cover and the Financial Ombudsman Service apply as they would to the principal.
Who owns Decile One?
Decile One is owned by Resolution Underwriting Holdings Limited, which holds 75–100% of shares, 75–100% of votes and can appoint and remove the board, since 14 April 2025. Before that, it was controlled by Decile One Holdings Limited.
Who runs Decile One?
Companies House lists one director of Decile One: Christopher Gill Harman.
How long has Decile One been in business?
The company was formed on 19 February 2021.
What do Decile One’s latest accounts show?
Its latest accounts, to 31 December 2025, show net assets of £1 (same as £1) and cash at bank of £1 (same as £1).

Sources and links

The full report on Decile One Limited

£19.99 · Instant PDF download

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