Mark McDermott
About Mark McDermott
Mark McDermott co-founded ScreenCloud in 2015 and ran it as CEO for eleven years. His LinkedIn profile says it grew into a global SaaS business used in over 100 countries. It took a strategic growth investment from Tenzing Private Equity in 2025. He is now listed there as Co-Founder and Board Advisor.
He says he has been building companies for over twenty years, including Codegent and Tepilo. Crunchbase describes Codegent as a digital product studio, and says ScreenCloud and Tepilo were co-founded out of it.
He is based near Lisbon. His LinkedIn says he helps companies adopt AI through McDermott Associates, backs early-stage founders as an angel, and wants to do more board and non-executive work.
Public databases list few of his angel deals. Crunchbase records one personal investment: a £450,000 seed round in Growyze announced in May 2022, in which he is listed as an investor. PitchBook also lists one investment, in Growyze, dated February 2023, and classes the company as business and productivity software.
These records may be incomplete, and the dates differ between the two sources.
In May 2026 he took part in Voxmind's £546,491 pre-seed round. Voxmind is a London-based voice authentication and deepfake detection startup, founded in January 2024. Ascension Ventures led the round. Russell Hart was lead angel, and members of the Cambridge angel network also took part.
Tech.eu reports that Voxmind is building physics-based voice authentication that runs on-device without GPUs or cloud connectivity. It targets banks, telecoms and contact centres. Press coverage names him as a participant but does not give his individual check size.
He has not published a thesis, check size or stage policy that we could find. His LinkedIn says only that he backs early-stage founders. His known deals are a seed round (Growyze) and a pre-seed round (Voxmind), both in software. His experience is in building and scaling a B2B SaaS company, and he says he offers operator help to the companies he backs.
- Voxmind: London voice authentication and deepfake detection startup; participated in its £546,491 pre-seed round, May 2026.
- Growyze: business and productivity software company; listed as an investor in its seed round, May 2022 per Crunchbase.
- linkedin.com/in/mhmcdermott
- crunchbase.com/person/mark-mcdermott
- pitchbook.com/profiles/investor/520749-91
- tech.eu/2026/05/26/voxmind-raises-546k-pre-seed-funding-as-cloud-giant
- biometricupdate.com/202605/voxmind-secures-funding-as-firms-seek-defen
- app.dealroom.co/news/note/voxmind-raises-546k-pre-seed-to-take-on-voic
Investing activity
Mark McDermott appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Pre-seed, with a median round size of $729K. The most recent is Voxmind (Pre-seed, £546,491, May 2026).
Mark McDermott most often invests alongside Ascension and Russell Hart, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Mark McDermott
Does Mark McDermott invest in AI startups?
Yes. He took part in Voxmind's £546,491 pre-seed round in May 2026. Voxmind builds voice authentication and deepfake detection. His LinkedIn also says he helps companies adopt AI through McDermott Associates.
What stage does Mark McDermott invest at?
His public deals are a seed round (Growyze, 2022) and a pre-seed round (Voxmind, 2026). His LinkedIn says he backs early-stage founders.
What is Mark McDermott's check size?
His check size is not public. Press reports of the Voxmind round give only the total round size of £546,491.
Who is Mark McDermott?
He co-founded ScreenCloud in 2015 and was its CEO for eleven years. He also co-founded Codegent and Tepilo. He is now a board advisor and angel investor.
Who else invested alongside Mark McDermott in Voxmind?
Ascension Ventures led the round. Russell Hart was lead angel, and members of the Cambridge angel network also took part.
Where is Mark McDermott based?
His LinkedIn profile lists Almada, near Lisbon, Portugal. Crunchbase lists London, and ScreenCloud was founded in London.
Is Mark McDermott an angel investor?
Yes. Mark McDermott invests personally as an angel.
What AI companies has Mark McDermott invested in?
Mark McDermott's AI investments include Voxmind. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
Who does Mark McDermott co-invest with?
Mark McDermott's most frequent co-investors on Lounge are Ascension (1 deal) and Russell Hart (1 deal).
How can founders reach Mark McDermott?
Founders on Lounge can see Mark McDermott's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Mark McDermott to their Investor Pipeline to track the conversation.