Mark Mullen co-founded Bonfire Ventures by merging his seed fund Double M Partners with Jim Andelman's Rincon Venture Partners after years as frequent co-investors, and he runs multiple pools of capital where he serves as both founder and largest LP across institutional VC and his own balance sheet. He brings an unusual background combining top-tier cable/media investment banking at Daniels & Associates with hands-on city leadership experience as COO of Los Angeles' Economic Office, where he oversaw major assets like LAX and the LA Convention Center.
What they've been talking about across their social media accounts

- Celebrates portfolio company milestones with a strong focus on B2B software, automation, and compliance tools. Frequently shares funding announcements for startups like Skael and Telgorithm, while also highlighting health-tech innovations designed to reduce noise in hospital ICUs.
- Active participant in the Web3 and NFT sectors, regularly registering for collector passes with PREMINT and the PROOF Collective. Tweets suggest a strategic interest in the infrastructure side of crypto, such as staking platforms or B2B software that facilitates cryptocurrency payments for the creator economy.
- Deeply embedded in the Los Angeles venture community, often posting updates about spending time with fellow investors in DTLA or congratulating partners at Bonfire Ventures. Promotes an inclusive ecosystem by amplifying the efforts of organizations like Slauson & Co and Grid110 that aim to democratize access to capital for diverse founders.
- Focuses on operational metrics and storytelling, pointing out impressive revenue growth figures for companies like Boulevard. Appreciates strong narrative building in startups, specifically citing Tourial as an example of a company with a compelling story.
- Shows support for pragmatic energy solutions, such as expressing approval for keeping nuclear power plants open to ensure reliable energy infrastructure.
About their Fund
Sectors
SaaS, Enterprise, Fintech, AI, HR Tech
Rounds
Seed
Avg Check Size
$2M -$3M
Notable Investments
Bonfire Ventures runs a deliberately low-volume model where each partner does only 2–3 new seed deals per year and spends 20–30 hours hands-on with every company in the first month, achieving an unusually high ~80–85% Series A graduation rate that's roughly four times industry averages. The firm combines two long-standing LA seed funds with a deeply operational Salesforce executive and focuses exclusively on AI-powered B2B software at seed stage when companies already have $300k–$1M+ ARR, leading ~95% of their rounds with double-digit ownership and following winners through IPO rather than handing them off to later-stage firms.
Notable Fund
Investments
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