Verified AccountantsUK firms, verified against the public record
Diamond & Skillen Limited website icon

Diamond & Skillen Limited

Chartered Accountants in Belfast BT1

Verified & RegulatedTrust Score100/100Excellent

Companies House: NI04308489 Royal Ave, Belfast, BT1 1FEData updated 07 Jul 2026

In the local market

Diamond & Skillen Limited is one of 124 accountancy practices we verify in Belfast. Incorporated in 2002, it is among the longest-established of them. It is one of only 8 CAI-regulated firms among them, rather than under the default HMRC scheme. It advertises a wider range of services than most firms we list in Belfast.

Verified Accountants assessment

Diamond & Skillen Limited is a UK limited company based in Belfast, incorporated in 2002 and trading for 24 years.

Public records confirm it is anti-money-laundering supervised by CAI, a member firm of CAI, up to date with its accounts (last filed 30 Apr 2025), and running a confirmed website. Its most recent filed accounts, for the year to 30 Apr 2025, report net assets of £371,787, up from £346,327 the year before. Its website shows it handles Self Assessment, VAT, Payroll, and Bookkeeping.

How we verify →

Verification record and Trust Score

100/100

Trust Score

Excellent
Public record
AML supervised · CAI
Active company
Filing compliant
Trading 24 years
Professional qualification
  • CAI
  • ICAEW
  • ACCA
  • AAT
Contact
Website
Phone
Emailpending

The Trust Score is the share of the applicable public signals we have verified, scored out of 100 - fully deterministic, never subjective. How it is scored, and every signal's points →

Companies HouseActiveno. NI043084 (opens in new tab)incorporated 2002Companies House · checked 07 Jul
Registered activity
  • SIC 69203 - Tax consultancy
The business activity the firm registered with Companies House (its Standard Industrial Classification).Companies House · checked 07 Jul
Filing complianceAccounts and confirmation statement filed on timelast accounts 30 Apr 2025 (opens in new tab)Companies House · checked 07 Jul
Statutory auditRegistered statutory auditorChartered Accountants Ireland Also Registered in the Republic of Ireland · reg 222127 (opens in new tab)Authorised to conduct statutory audits (the legally required independent audit of company accounts) under a Recognised Supervisory Body. Only firms on the official UK Audit Register may sign a statutory audit.audit-register · checked 28 Jul
Professional bodyMember firm of CAIChartered Accountants Ireland (CAI) is a UK professional accountancy body. Member firms must meet its qualification and conduct standards and can be disciplined by it.firm website · checked 29 Jul
Anti-money-launderingSupervised by CAICAI is one of the professional bodies approved to supervise accountants for anti-money-laundering. Every UK accountant must be supervised, by HMRC or an approved professional body, so this confirms the firm is monitored and operating legitimately.firm website · checked 29 Jul
Sources: Companies House (opens in new tab), audit-register, firm website (opens in new tab)
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Good fit for

  • Handles Self Assessment, VAT, Payroll and Bookkeeping
  • Businesses that need a statutory audit

Specialisms and services

Services
AccountantSelf AssessmentVATPayrollBookkeepingLimited company accountsAuditManagement Accounts

Message this firm

Send an enquiry and we will pass it to Diamond & Skillen Limited. No account needed - just your contact details and what you need help with.

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People at Diamond & Skillen Limited

Persons with significant control (1)

  • Mr Nigel Victor SkillenOwns 75-100% of shares, 75-100% of voting rights, Can appoint or remove directors

Source: Companies House register (opens in new tab).

Financials (as filed)

Companies House filing history (opens in new tab) | 2022 to 2025
Net assets
£372k
as at 30 Apr 2025+£25k vs 2024
Current assets
£190k
as at 30 Apr 2025+£41k vs 2024
Average employees
2
as at 30 Apr 2025
Current assets (cash, debtors, other) and net assets by year, in £. Latest year first.
2025202420232022
CashDebtorsOtherNet assets
Full figures
As filed30 Apr 202530 Apr 202430 Apr 202330 Apr 2022
Average employees2222
Net assets£371,787£346,327£353,622£335,928
Current assets£189,858£148,475£143,191£98,164
Fixed assets£279,089£279,089£279,089£279,089
Shareholders equity£371,787£346,327£353,622£335,928

Figures as reported in this firm's accounts filed at Companies House. Net assets is total assets less what the company owes; a figure below zero means recorded liabilities exceed assets. Small companies may file abbreviated accounts that omit turnover and profit. Public record, reproduced as facts.

Timeline

  1. 2002Company incorporated
  2. 2025Latest accounts filed
  3. 2026Verified on this directory

Frequently asked questions

Is Diamond & Skillen Limited a regulated accountant?

Yes. Diamond & Skillen Limited is a member firm of CAI, and is supervised for anti-money-laundering by CAI. Every UK accountant must be supervised for anti-money-laundering, by HMRC or an approved professional body, so this confirms the firm is authorised to practise and monitored for compliance.

Is Diamond & Skillen Limited a chartered accountant?

Yes. Diamond & Skillen Limited is a member firm of CAI, so it can use the title Chartered Accountants. "Chartered" and "Chartered Certified" are legally protected UK terms that only members of these bodies may use.

What services does Diamond & Skillen Limited offer?

Based on its own website, Diamond & Skillen Limited offers Self Assessment, VAT, Payroll, Bookkeeping, Limited company accounts, and Audit. Confirm current services and availability with the firm before engaging. Message this firm →

How long has Diamond & Skillen Limited been established?

Diamond & Skillen Limited was incorporated at Companies House in 2002, so it has been on the register for about 24 years. A longer trading history is one sign of an established, accountable firm, though a newer firm is not necessarily less capable.

Does Diamond & Skillen Limited file its accounts on time?

Yes. According to Companies House, Diamond & Skillen Limited's most recent statutory accounts were filed by their due date. On-time filing is a basic sign that a company is being administered properly.

How do you verify Diamond & Skillen Limited?

We build this record only from public, authoritative sources - for this firm, Companies House, audit-register, and firm website, and stamp every claim with its source and the date we last checked it. We show only what we can verify and say so plainly when we cannot. How we verify →

How is the Trust Score calculated?

The Trust Score is fully deterministic: fixed points for public, verified signals - an active company, anti-money-laundering supervision, filing compliance, a confirmed website and trading history. Diamond & Skillen Limited scores 100/100. Nothing in the score is subjective, and every rule is listed on this page. How we verify →

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