J3 INS Limited

Reference number: 959528

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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.

Responsible principal firm

Partners& Limited Reference number: 308261 Authorised 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.
  • J3 INS Limited (FRN 959528) is an AR of Partners& Limited (FRN 308261). When you use J3 INS's services, the FCA authorisation sits with the principal firm.
  • Example: if you take financial advice from J3 INS, 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.

In the full report: 3 background checks

  • When j3advisory.co.uk first appeared online, and whether it can receive email
  • What kind of line 07538 361831 is
  • Who else gives the postcode W1K 5RL
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Other names (2)

If you were contacted under any of these names, it is this firm.

  • J3 Advisory Trading name
  • J3 INS Ltd Former name

FCA permissions and consumer protection

  • Protection through the principal firm
    Protection works through Partners& 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 number
13557989
Company status
Active
Company type
Private limited company
Incorporated
10 August 2021 (5 years old)
Registered office
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
Jack Michael Bristow Director Jan 1989 10 Aug 2021 3 other companies
John Joseph Leadsom Director Jun 1998 10 Aug 2021 3 other companies
Rosita Mendonca Director Sep 1985 3 Jun 2026 3 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
3
still active
3
run together
3

In the full report: all 3 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
  • The 3 companies these 3 directors run together
  • All 4 people who have ever been directors, with their dates
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Filed accounts and finances

Year to 30 June 2025Small company accountsNot audited

Net assets

£1.43m

+130% from £621k

Cash at bank

£304k

+214% from £96.7k

Employees (average)

11

+10% from 10

Owed within a year

£123k

+254% from £34.8k

Net assets

In the full report: all 4 years of accounts

  • Every year from 2022 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.

There is no turnover or profit: small companies do not have to publish them.

Accounts filed at Companies House for company 13557989. 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

J3 Ins’s history from the FCA register and Companies House, newest first.

Key events (10) All events (16)

2023

1 December 2023

  • Changed its registered name from "J3 INS Ltd"

FCA register

2021

1 December 2021

  • J3 Advisory Limited took control (75–100% of shares)
  • Jack Michael Bristow stopped being a part-owner
  • James Mole no longer has significant control
  • John Joseph Leadsom no longer has significant control

Companies House

1 October 2021

  • Became an appointed representative

FCA register

10 August 2021

  • Incorporated at Companies House
  • Jack Michael Bristow became a part-owner (25–50% of shares)
  • James Mole gained significant control
  • John Joseph Leadsom gained significant control

Companies House

In the full report: all 16 events

  • All 16 events in its history (10 shown here)
  • Every director appointment and resignation: 5
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Firms connected to J3 Ins

Other FCA-listed firms that share a director, phone number or address with J3 Ins. A link shows who the firm is tied to, not whether either can be trusted.

connected firms
3
share its postcode
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
Instant PDF download

Firms like J3 Ins

Other firms of the same type (insurance broker), nearest first.

In London

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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 J3 Ins

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

  • 3 other companies its directors have run, named
  • 3 background checks on its contact details
  • 4 years of accounts, charted
  • All 16 events in its history
  • 3 connected firms, named, and who links them

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Frequently asked questions about this firm

Is J3 INS Limited FCA authorised?
J3 INS Limited (FRN 959528) 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 J3 Ins?
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. J3 INS Limited (FRN 959528) is an AR of Partners& Limited (FRN 308261). When you use J3 Ins's services, the FCA authorisation sits with the principal firm. Example: if you take financial advice from J3 Ins, 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 J3 Ins’ phone number and website?
The FCA register lists the phone number 07538 361831 and the website j3advisory.co.uk for J3 Ins. If you were given different contact details, use these to check with the firm before going any further.
Is J3 Ins a scam or clone?
J3 Ins 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 J3 Ins?
Protection works through Partners& Limited, the principal firm responsible for J3 Ins's regulated activity. FSCS cover and the Financial Ombudsman Service apply as they would to the principal.
Who owns J3 Ins?
J3 Ins is owned by J3 Advisory Limited, which holds 75–100% of shares, 75–100% of votes and can appoint and remove the board, since 1 December 2021. Before that, it was controlled by Mr Jack Michael Bristow, Mr John Joseph Leadsom and Mr James Mole.
Who runs J3 Ins?
Companies House lists 3 directors of J3 Ins: Jack Michael Bristow, John Joseph Leadsom and Rosita Mendonca.
How long has J3 Ins been in business?
The company was formed on 10 August 2021.
What do J3 Ins’ latest accounts show?
Its latest accounts, to 30 June 2025, show net assets of £1.43m (+130% from £621k) and cash at bank of £304k (+214% from £96.7k).
Does J3 Ins use any other names?
It trades as J3 Advisory. It has previously used the name J3 INS Ltd.

Sources and links

The full report on J3 INS Limited

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