Achievements
- Founded Arc in 2021, a digital bank for startups and SaaS companies
- Raised over $181 million in funding under his leadership
- Onboarded thousands of startups managing hundreds of millions in deposits
- Launched Arc with a revenue-based financing product, later evolving into an asset-light marketplace
- Worked at Onex Partners and Boston Consulting Group, gaining finance and strategy expertise
- Frequent speaker at industry events and contributor to Forbes
About Don Muir
Yo, have you heard about Don Muir? Dude’s a straight-up boss in the fintech scene. He’s the co-founder and CEO of Arc, this killer digital bank and finance platform built for startups and SaaS companies. Launched it in 2021 while he was still at Stanford GSB, talk about jumping into the deep end. He teamed up with Nick Lombardo and Raven Jiang, and boom, they started making waves.
Don’s story is wild. Before he got into the startup game, he worked at Onex Partners, big private equity vibes, and Boston Consulting Group, which gave him serious chops in finance and strategy. You can tell he’s no stranger to the grind and big moves. That background? It’s what set him up to crush it with Arc.
Since launching, Arc’s raised over $181 million, no small feat, and has onboarded thousands of startups, managing hundreds of millions in deposits. They kicked off with a revenue-based financing product, which is super smart because it helps startups get funding without all the bullshit of traditional loans. Now, they’ve evolved into this slick asset-light marketplace, making startup financing way more accessible and fast.
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Talk to herWhat’s dope about Don is how he’s all about resilience and execution. He talks a lot about how breaking down silos and collaborating across teams is what fuels their growth. Dude’s big on getting shit done and not getting caught up in bullshit politics. Plus, he’s always speaking at industry events and dropping knowledge in Forbes, so he’s clearly seen as a thought leader.
His process screams one thing, he’s all about building stuff that actually matters, not just chasing the latest hype. Coming from a solid finance and consulting background, he saw the gaps in how startups get funded and decided to fix that. It’s about real impact, not just making a quick buck. That’s why Arc is the real deal, and why Don’s a total big change in the fintech world.
Bottom line? Don Muir’s the guy who took his experience, jumped into the startup scene, and built something that’s shaking up startup finance. He’s resilient, he’s smart, and he’s all about making things better for the founders out there. No cap.

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