Verified AccountantsUK firms, verified against the public record
Donaldson & Thompson Ltd website icon

Donaldson & Thompson Ltd

Chartered Accountants in Londonderry BT47

Verified & RegulatedTrust Score100/100Excellent

Companies House: NI0372853 Limavady Rd, Londonderry, BT47 6JUData updated 07 Jul 2026

In the local market

Donaldson & Thompson Ltd is one of 15 accountancy practices we verify in Londonderry. Incorporated in 1999, it is among the longest-established of them. It is the only CAI-regulated firm among them, rather than under the default HMRC scheme. It advertises a wider range of services than most firms we list in Londonderry.

Verified Accountants assessment

Donaldson & Thompson Ltd is a UK limited company based in Londonderry, incorporated in 1999 and trading for 27 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 31 Mar 2025), and running a confirmed website. Its most recent filed accounts, for the year to 31 Mar 2025, report net assets of £913,075, down from £1.2m 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 26 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. NI037285 (opens in new tab)incorporated 1999Companies House · checked 07 Jul
Registered activity
  • SIC 69201 - Accounting and auditing
  • 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 31 Mar 2025 (opens in new tab)Companies House · checked 07 Jul
Statutory auditRegistered statutory auditorChartered Accountants Ireland Also Registered in the Republic of Ireland · reg 3024644 (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)
Own this firm? Claim or enhance your listing. Get in touch to claim or update this listing

Good fit for

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

Specialisms and services

Services
AccountantSelf AssessmentVATPayrollBookkeepingLimited company accountsAuditContractorManagement Accounts

Message this firm

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

We share your message with this firm to answer your enquiry.

People at Donaldson & Thompson Ltd

Directors and officers (5)

  • MCLAUGHLIN, OwenDirector · since 2002
  • STERRITT, AlistairDirector · since 2008
  • SMITH, Ellen JeannieDirector · since 2019
  • DONAGHY, PeterDirector · since 2019
  • O'DONNELL, LauraDirector · since 2025

Persons with significant control (1)

  • Mr Owen MclaughlinOwns 25-50% of shares, 25-50% of voting rights

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

Financials (as filed)

Companies House filing history (opens in new tab) | 2022 to 2025
Net assets
£913k
as at 31 Mar 2025-£253k vs 2024
Current assets
£1.4m
as at 31 Mar 2025-£24k vs 2024
Cash at bank
£300k
as at 31 Mar 2025-£94k vs 2024
Average employees
32
as at 31 Mar 2025+1 vs 2024
Current assets (cash, debtors, other) and net assets by year, in £. Latest year first.
2025202420232022
CashDebtorsOtherNet assets
Full figures
As filed31 Mar 202531 Mar 202431 Mar 202331 Mar 2022
Average employees32312728
Net assets£913,075£1,165,946£1,064,460£1,001,197
Cash at bank£300,406£394,424£314,864£308,546
Current assets£1,366,193£1,389,716£1,238,926£1,195,476
Fixed assets£92,725£112,740£130,864£140,800
Debtors£465,763£460,608£392,999£494,810
Shareholders equity£913,075£1,165,947£1,064,460£1,001,197

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. 1999Company incorporated
  2. 2025Latest accounts filed
  3. 2026Verified on this directory

Frequently asked questions

Is Donaldson & Thompson Ltd a regulated accountant?

Yes. Donaldson & Thompson Ltd 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 Donaldson & Thompson Ltd a chartered accountant?

Yes. Donaldson & Thompson Ltd 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 Donaldson & Thompson Ltd offer?

Based on its own website, Donaldson & Thompson Ltd 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 Donaldson & Thompson Ltd been established?

Donaldson & Thompson Ltd was incorporated at Companies House in 1999, so it has been on the register for about 27 years. A longer trading history is one sign of an established, accountable firm, though a newer firm is not necessarily less capable.

Does Donaldson & Thompson Ltd file its accounts on time?

Yes. According to Companies House, Donaldson & Thompson Ltd'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 Donaldson & Thompson Ltd?

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. Donaldson & Thompson Ltd scores 100/100. Nothing in the score is subjective, and every rule is listed on this page. How we verify →

Explore nearby

Weighing up your options?

Compare every verified accountant in Londonderry

Need payroll sorted too?

Choosing an accountant