Calculus Capital Limited

Reference number: 190854

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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.

In the full report: 3 background checks

  • When calculuscapital.com first appeared online, and whether it can receive email
  • What kind of line 020 7493 4940 is, and the other firm that gives it
  • Who else gives the postcode W1S 2XH
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Other names (2)

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

  • Calculus Trading name
  • McDonald Glencross Limited Former name

FCA permissions and consumer protection

  • Hold or safeguard your money · Manage or trade investments · Run or oversee funds FSCS may apply
    Eligible investment and pension claims are typically FSCS-protected up to £85,000 per person, depending on the product and your circumstances.
  • Complaints Ombudsman, free
    You can refer a complaint about this firm to the Financial Ombudsman Service for free, whichever activity it relates to.
Show FCA detail (6 permissions)
  • Arranging (bringing about) deals in investments
  • Arranging safeguarding and administration of assets
  • Making arrangements with a view to transactions in investments
  • Managing an unauthorised AIF
  • Managing investments
  • Safeguarding and administration of assets (without arranging)
One supervisory condition set by the FCA

These are conditions the FCA places on the firm itself, covering things like capital it must hold and what it must report. They do not change what the firm may do for you.

  • Small Authorised UK AIFM (Sub-Threshold)
    The total value of assets under management by the firm must not exceed the relevant threshold as set out in Article 3(2) of AIFMD (as determined under Chapter II, section I of the AIFMD level 2 regulation). In the event that the relevant threshold is breached, the firm must submit an application for authorisation as a Full-scope UK AIFM to the FCA

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
03861194
Company status
Active
Company type
Private limited company
Incorporated
19 October 1999 (27 years old)
Registered office
12 Conduit Street, London,, W1S 2XH, England
Nature of business
  • Fund management activities (SIC 66300)

Directors and company secretaries

Name Role Born Appointed Other companies
Arthur John Glencross Director Sep 1953 19 Oct 1999 16 other companies
Susan Rebecca Mcdonald Director Dec 1955 19 Oct 1999 8 other companies
Julie Hong Nhan Ngo Director Apr 1974 19 May 2022 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
19
closed down
4
are FCA-registered
3

In the full report: all 19 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 on the FCA register
  • The 7 companies these 3 directors run together
  • All 11 people who have ever been directors, with their dates
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Filed accounts and finances

Year to 31 October 2025Full accountsAudited

Total equity

£5.73m

No earlier figure to compare

Cash at bank

£2.20m

−15% from £2.58m

Owed within a year

£1.07m

+156% from £416k

Assets and liabilities

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 03861194. 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

Calculus Capital’s history from the FCA register and Companies House, newest first.

Key events (8) All events (29)

2016

6 April 2016

  • Calculus Group Limited took control (75–100% of shares)

Companies House

2014

9 June 2014

  • FCA imposed a requirement (Small Authorised UK AIFM (Sub-Threshold))

FCA register

2013

1 April 2013

  • Regulated by the FCA from this date

FCA register

2005

18 April 2005

  • Changed its registered name from "McDonald Glencross Limited"

FCA register

2001

1 December 2001

  • Regulated by the Financial Services Authority from this date
  • Became authorised by the FCA

FCA register

1999

19 October 1999

  • Incorporated at Companies House

Companies House

1901

1 January 1901

  • Regulated by the Investment Management Regulatory Organisation from this date

FCA register

In the full report: all 29 events

  • All 29 events in its history (8 shown here)
  • Every director appointment and resignation: 17
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Firms connected to Calculus Capital

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

connected firms
2
share a director
2
share its phone number
1

In the full report: all 2 connected firms, named

  • How each is linked: shared directors (2), the same phone number (1), the same postcode (2)
  • Who links each one: the named directors, with dates
  • 1 past link through former directors
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Firms like Calculus Capital

Other firms of the same type (investment or fund manager), nearest first.

In London

UBS Asset Management (UK) LtdLondonAuthorisedUBS Asset Management Funds LtdLondonAuthorisedRevolut Trading LtdLondonAuthorisedBlackRock Advisors (UK) LimitedLondonAuthorisedBlackRock Fund Managers LimitedLondonAuthorisedBlackRock Investment Management (UK) LimitedLondonAuthorised

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 Calculus Capital

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

  • 19 other companies its directors have run, named
  • 3 background checks on its contact details
  • All 29 events in its history
  • 2 connected firms, named, and who links them

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Frequently asked questions about this firm

Is Calculus Capital Limited FCA authorised?
Yes, Calculus Capital Limited (FRN 190854) is authorised by the FCA to carry out regulated activities. It has held its current authorisation since December 2001 and works as an investment or fund manager. The FCA has placed no limits on its permissions.
What is Calculus Capital’s phone number and website?
The FCA register lists the phone number 020 7493 4940 and the website calculuscapital.com for Calculus Capital. If you were given different contact details, use these to check with the firm before going any further. The same number is also given by one other FCA firm.
Is Calculus Capital a scam or clone?
Calculus Capital 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 Calculus Capital?
It is permitted to hold and control client money, which it must keep separate from its own. It depends on the product, but eligible claims may be protected by the FSCS. You can also refer complaints about Calculus Capital to the Financial Ombudsman Service, free of charge.
Who owns Calculus Capital?
Calculus Capital is owned by Calculus Group Limited, which holds 75–100% of shares, 75–100% of votes and can appoint and remove the board, since 6 April 2016.
Who runs Calculus Capital?
Companies House lists 3 directors of Calculus Capital: Arthur John Glencross, Susan Rebecca McDonald and Julie Hong Nhan Ngo.
How long has Calculus Capital been in business?
The company was formed on 19 October 1999, and has held its current FCA authorisation since December 2001.
What do Calculus Capital’s latest accounts show?
Its latest accounts, to 31 October 2025, show total equity of £5.73m (no earlier figure to compare) and cash at bank of £2.20m (−15% from £2.58m).
Does Calculus Capital use any other names?
It trades as Calculus. It has previously used the name McDonald Glencross Limited.

Sources and links

The full report on Calculus Capital Limited

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