August Erséus
About August Erséus
August Erséus is based in Stockholm, Sweden. Crunchbase lists him as co-founder and CPO of Legora and notes that he first pursued a career in psychology. An investor profile cited by Edgepedia says he fell in love with programming and "turned hacker".
Legora was founded in 2023 in Stockholm under the name Leya. His co-founders are Max Junestrand (CEO) and Sigge Labor (President). Legora builds an AI platform for legal work.
In May 2024 the company announced a $10.5M seed round led by Benchmark, with SV Angel, Hummingbird Ventures and Y Combinator. A $25M Series A led by Redpoint followed in July 2024. Later rounds reported by Edgepedia include a $550M Series D in March 2026 at a $5.55B valuation. A third-party site says he had left the company by March 2026, but the eComID announcement of August 2026 still calls him a founder of Legora. Check his current role with him directly.
The only angel investment we could confirm is eComID, in August 2026. No personal site, fund page or interview was found that lists other angel investments, and no check sizes or investing thesis from him are public.
eComID announced a €14.58M ($17M) Seed round on 25 August 2026. EU-Startups lists Erséus, described as founder of Legora, among the founders and retail leaders who joined the round. Other named participants include Alan Mamedi of Truecaller, Sebastian Knutsson of King, Henrik Nordvall and Maria Raga.
Pulse 2.0 reports that Systemiq Capital led the round. eComID is building an AI-powered Shopping Passport. It lets shoppers carry information about size, fit, taste and preferences across participating brands. The company is based in Stockholm.
Too little is public to describe a stated focus. His one confirmed investment is a Seed-stage AI commerce company in Stockholm, alongside founder and retail-operator angels. His own work is in legal AI and product. He has not published a check size, stage preference or list of sectors.
- eComID: Stockholm startup building an AI-powered Shopping Passport for personalised commerce. He took part in its $17M Seed round, announced in August 2026.
Investing activity
August Erséus appears in 1 AI deal tracked by the Lounge deals desk, rounds totalling $17M. The rounds are mostly Seed, with a median round size of $17M. The most recent is eComID (Seed, $17M, Aug 2026).
August Erséus most often invests alongside Systemiq capital, Alexandra Sack, Alan Mamedi and Filip Ekvall, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about August Erséus
Who is August Erséus?
He is a Stockholm-based co-founder of Legora (formerly Leya), a legal AI company founded in 2023. Crunchbase lists him as Co-Founder and CPO.
Has August Erséus made AI angel investments?
Yes. He took part in eComID's $17M Seed round, announced in August 2026. We found no other confirmed angel investments.
What is August Erséus's check size?
He has not made a check size public, and none of the sources we found state one.
What stage does August Erséus invest in?
He has no stated stage preference. His one confirmed investment, eComID, was a Seed round.
How can founders contact August Erséus?
He has a public LinkedIn profile at linkedin.com/in/erseus. We found no personal site or confirmed X account. A warm introduction through a mutual contact is the safer route.
Is August Erséus an angel investor?
Yes. August Erséus invests personally as an angel.
What AI companies has August Erséus invested in?
August Erséus's AI investments include eComID. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does August Erséus invest at?
In the rounds tracked on Lounge, August Erséus has invested at Seed, with a median round of $17M.
Who does August Erséus co-invest with?
August Erséus's most frequent co-investors on Lounge are Systemiq capital (1 deal), Alexandra Sack (1 deal), Alan Mamedi (1 deal), Filip Ekvall (1 deal) and Madeleine Persson (1 deal).
How can founders reach August Erséus?
Founders on Lounge can see August Erséus'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 August Erséus to their Investor Pipeline to track the conversation.