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Long-Standing Security Monitoring Firm In Suburban Sunderland
Sunderland, Tyne and Wear, North EastIdentity protected
Available

About this business
Trading since 1992, this business provides round-the-clock monitoring of networks, email and laptops for small firms in the North East, with a four-person team handling alerts and responses from a leased office in a Sunderland suburb.
Growth has been strong: turnover rose from £292k in 2021 to £460k, with adjusted EBITDA up from £112k to £153k, a margin of 33%. Net profit is £134k. The asking price of £1.25m reflects the high margin, and a buyer would need to keep the small team in place.
Key investment highlights
- Turnover up 58% since 2021
- Margin of 33% on £460k turnover
- Round-the-clock monitoring for small firms
- Trading since 1992
Reason for sale
The owner is retiring after a long career in IT.
Nothing flagged on the two questions buyers ask first
No flagRevenue going backwards and one client being too much of it are the two things that end most deals in due diligence. Both are shown here up front, from the figures the seller supplied.
- Revenue directionNo flag
Turnover rose +8.2% in 2026.
- 2021: baseline
- 2022 (+8.2%)
- 2023 (+11.4%)
- 2024 (+7.7%)
- 2025 (+12.1%)
- 2026 (+8.2%)
6 years of turnover, 2021 to 2026, as supplied by the seller.
- Client concentrationNot stated
The seller has not declared what share of revenue the largest clients represent.
No declaration supplied. Client concentration cannot be derived from accounts.
EBITDA margin narrowed from 38.4% in 2021 to 33.3% in 2026.
These are observations from the supplied figures, not a view on whether this business is worth buying. Nothing here predicts an outcome.
Computing valuation...
What happens next
Submit an enquiry to the seller. Once they approve it, you sign a non-disclosure agreement and gain access to the information memorandum, the financials and a secure deal room with the seller.

