South African-born serial entrepreneur and venture capitalist Vinny Lingham has secured yet another exit. His latest startup, San Diego-based AI meeting intelligence platform Rumi.ai, has been acquired by the US subsidiary of Decidr AI Industries (ASX:DAI).
Lingham, the co-founder of Gyft and blockchain identity verification startup Civic, has a track record of building and selling businesses. Since his earliest venture, the search engine marketing company Clicks2Customers, which was acquired by Interface Holdings in 2007, Lingham has consistently found buyers for his companies. His most prominent exit prior to this came in 2014 when digital gift card platform Gyft was sold to payments giant First Data for more than $54 million, with Lingham departing within a year.
But his influence extends beyond founding. Lingham has built a parallel career as an investor, co-founding venture capital firm Newtown Partners with Llew Claasen in 2014, and a General Partner at Multicoin Capital, which made early bets on blockchain projects Solana and Filecoin. The firm has backed a long list of global startups, and its early African investment SweepSouth was exited to Naspers in 2019 at a 15x multiple.
The Decidr deal is the latest and fastest exit in Lingham’s portfolio. Rumi.ai — launched during the pandemic under the name Waitroom before pivoting toward AI — has been bought by a company with distinct ideas about how enterprise AI should be owned and operated.
What Decidr is buying: Ambient ‘Knowledge Security’
Rumi.ai’s architecture operates as a continuous, passive capture layer for internal corporate dialogue. Its twin flagship products, X-Ray and Meeting Memory, automatically extract and structure institutional knowledge across live video meetings, in-person discussions, Slack threads, and customer relationship management (CRM) systems.
The acquisition fits into a broader consolidation strategy by Decidr. Earlier this year, the ASX-listed operator purchased Sugarwork, a New York-based knowledge capture platform. While Sugarwork extracts expert reasoning through structured, active deep-dive sessions, Rumi captures it ambiently.
Decidr intends to stream the resulting structured telemetry into its clients’ proprietary reasoning graphs. This data pipeline allows enterprise buyers to continuously fine-tune “sovereign” large language models (LLMs) that they own outright.
The acquisition addresses an emerging corporate vulnerability: intellectual property and strategic data loss via public AI services.
“Most enterprises leak their reasoning structure every day through prompts sent to third-party foundation models,” said David Brudenell, Executive Chair and Co-CEO of Decidr AI Industries. “Sugarwork solved the capture of how your best people reason; Rumi’s X-Ray and Meeting Memory solve how that plays out across the business every day.”
Ramsey Pryor, CEO of Rumi.ai, framed the acquisition as a logical progression for the startup’s underlying tech. “We built Rumi on the conviction that the most valuable knowledge lives in conversations. Today, most of that data is discarded or underutilized. Joining Decidr means that captured knowledge becomes the live training signal behind a sovereign model.”
The Rumi acquisition is not Lingham’s only recent move. In 2024, Lingham co-founded Praxos Capital, a cryptocurrency money market hedge fund. His investment portfolio — which the firm says currently holds at least 15 companies — includes a 2024 stake in Software Development Applications company corpus.core. Lingham has also made angel investments in household names such as Flutterwave and Robinhood.
A “shark” on the South African version of Shark Tank, Lingham continues to operate at the intersection of founder and financier.
The transaction is subject to customary closing conditions including due diligence.