Frequently Asked Questions
Direct, sourced answers to the questions readers and search engines most often ask about Big Technologies plc.
What is Big Technologies plc?
Big Technologies plc is the AIM-listed parent company of the Buddi electronic-monitoring business. It was incorporated on 26 May 2017 (company no. 10791781) and admitted to AIM in 2021 under the ticker BIG.
What does Big Technologies do?
Through its Buddi brand, Big Technologies provides electronic-monitoring technology used in the criminal-justice sector.
Is Big Technologies the owner of Buddi?
Yes. Buddi is the primary operating brand of the Big Technologies group.
What is Big Technologies' AIM ticker?
BIG, on the London Stock Exchange's Alternative Investment Market (AIM).
Who founded Big Technologies?
Sara Murray founded the business and served as its chief executive until her dismissal on 31 March 2025.
Why was Sara Murray dismissed?
On 31 March 2025 Big Technologies announced that it had dismissed Sara Murray as CEO, removed her as a director, and commenced High Court proceedings. The company later published detailed allegations, which she denies.
What litigation is Big Technologies involved in?
Two strands: High Court proceedings against Sara Murray (ongoing), and the Buddi shareholder litigation (settled for £38.5m in January 2026).
What was the Buddi litigation?
Proceedings by former Buddi shareholders alleging they were wrongly forced, or induced by misrepresentation, to sell shares and were denied the chance to reinvest into Big Technologies.
How much did Big Technologies pay to settle the Buddi litigation?
£38.5 million in cash: £31.5m immediately and £7m over 18 monthly instalments, announced on 19 January 2026.
What was the £320 million undertaking?
Big Technologies' 2024 audited results disclosed that Sara Murray gave the High Court an undertaking not to dissipate assets up to £320m, the value the company placed on its claim. It is not a finding of liability.
What allegations has Big Technologies made?
The company alleged undisclosed interests, untrue information provided to it and the court, diversion of more than £19m, and document falsification. All are denied and not judicially determined.
Does Sara Murray deny the allegations?
Yes. She has publicly denied them and was reported as describing them as 'outrageous'.
How much did Big Technologies spend on legal costs in 2025?
£8.142 million, according to the 2025 audited results. Legal costs in 2024 were £9.021m.
Did Big Technologies make a loss in 2025?
Yes — a £23.015m statutory operating loss, despite £24.6m of adjusted EBITDA, because of the £38.5m settlement provision and legal costs.
What was Big Technologies' 2025 revenue?
£49.727 million, according to the audited results announced on 30 March 2026.
Who is the CEO?
Charles Lewinton was appointed Acting CEO on 29 June 2026, following the retirement of Ian Johnson. Verify the current position against the latest filing.
What happened to Ian Johnson?
Ian Johnson, appointed CEO in May 2025, retired on 29 June 2026 (RNS 0990K).
What happened in September 2026?
On 14 September 2026 Big Technologies announced that mediated discussions with Sara Murray had ended and that it would continue litigation absent meaningful settlement discussions.
Are the proceedings still ongoing?
The Murray proceedings are ongoing. The Buddi litigation was settled in January 2026.
Where can I read the original documents?
In the document archive and source library, each entry links to its original source on Companies House, the FCA NSM or the London Stock Exchange.
Is this site affiliated with Big Technologies?
No. Big Technologies Files is an independent publication, not affiliated with, endorsed by, or operated by Big Technologies plc or Buddi Limited.
What is the difference between a fact and an allegation on this site?
Facts are drawn from public records and company disclosures; allegations are attributed to whoever made them and are not presented as findings. See the facts vs allegations page.
Does a settlement prove the allegations?
No. A settlement resolves a dispute on agreed terms; it is not, by itself, an admission of liability unless the terms or an authoritative source say so.
How can I submit a correction or response?
Via the Right of Reply page. Substantive responses may be published alongside the relevant article.
Who owns Big Technologies?
Big Technologies is a public company traded on AIM. Persons with Significant Control are recorded at Companies House; see the Companies House page for the live record.