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
STONEBRIDGE MORTGAGE SOLUTIONS LIMITED Reference number: 454811 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.
- Keystone Mortgage Services Limited (FRN 1060253) is an AR of STONEBRIDGE MORTGAGE SOLUTIONS LIMITED (FRN 454811). When you use Keystone Mortgage Services's services, the FCA authorisation sits with the principal firm.
- Example: if you take financial advice from Keystone Mortgage Services, 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
Office 17, 76 High Street, Stony Stratford, Milton Keynes, Milton Keynes, MK11 1AH, United Kingdom
In the full report: 2 background checks
- What kind of line 07540 174123 is
- Who else gives the postcode MK11 1AH
FCA permissions and consumer protection
- Protection through the principal firmProtection works through Stonebridge Mortgage Solutions 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
- 17274034 (opens Companies House in a new tab)
- Company status
- Active
- Company type
- Private limited company
- Incorporated
- 10 June 2026 (less than a year old)
- Registered office
- 76 High Street, Stony Stratford, Milton Keynes, MK11 1AH, England
- Nature of business
-
- Financial intermediation not elsewhere classified (SIC 64999)
Directors and company secretaries
| Name | Role | Born | Appointed | Other companies |
|---|---|---|---|---|
| James Roy Soper | Director | Aug 1981 | 10 Jun 2026 | None |
In the full report: every company its directors have run
- Confirmation that its director runs no other company
Key dates in its history
Keystone Mortgage Services’s history from the FCA register and Companies House, newest first.
2026
10 August 2026
- Became an appointed representative
- Began trading as "Keystone Mortgage Services"
FCA register
10 June 2026
- Incorporated at Companies House
- James Roy Soper took control (75–100% of shares)
- James Roy Soper appointed as a director
Companies House
Director appointments and resignations, and trading names, appear under All events.
Firms connected to Keystone Mortgage Services
Other FCA-listed firms that share a director, phone number or address with Keystone Mortgage Services. 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 Keystone Mortgage Services
Other firms of the same type (mortgage adviser or broker), nearest first.
In Milton Keynes
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 Keystone Mortgage Services
Everything on this page, plus everything locked above, in one dated PDF you can keep, file or send on.
- Every company its directors have run, named
- 2 background checks on its contact details
- All 5 events in its history
- 1 connected firm, named, and who links them
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Frequently asked questions about this firm
Is Keystone Mortgage Services Limited FCA authorised?
What does appointed representative mean for Keystone Mortgage Services?
What is Keystone Mortgage Services’ phone number?
Is Keystone Mortgage Services a scam or clone?
Is my money safe with Keystone Mortgage Services?
Who owns Keystone Mortgage Services?
Who runs Keystone Mortgage Services?
How long has Keystone Mortgage Services been in business?
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