Graphite Ventures

Graphite Ventures (formerly MaRS IAF) is a Toronto-based early-stage venture firm with a thesis focused on B2B software and technology businesses, with healthcare and life sciences exposure through its history with the Toronto innovation ecosystem and the MaRS Discovery District. The graphitevc.com website indicates an established Canadian venture investor with active investing across seed and Series A. For healthcare AI founders, Graphite is a credible match if you are building a Canadian healthcare AI business or expanding into Canada, particularly with Toronto health system relationships (UHN, Sinai Health, Sunnybrook are all in their orbit) or Canadian healthcare system positioning. Plausible check sizes run 500K to 3M at seed and Series A, with the firm comfortable leading or co-leading. Founders building healthcare AI for clinical workflow, payer technology, healthcare data infrastructure, or AI tools with strong B2B SaaS economics should approach if they have a Canadian nexus or expansion plans. Founders without a Canadian connection, or those building deep biotech and regulated medical devices, should evaluate fit carefully; the firm’s value-add is regionally and thesis-anchored. Entry path is LinkedIn outreach to partners with a clear thesis fit, or warm introduction through MaRS-affiliated founders, Toronto operator networks, or Canadian B2B SaaS communities. The firm responds to inbound. Diligence will be sharp on B2B SaaS metrics with attention to Canadian healthcare system dynamics, government reimbursement, and provincial market navigation. Bring evidence of Canadian customer interest if you have it. The value-add includes Toronto and Canadian network access, government health system introductions, and credible co-investor relationships in the Canadian venture ecosystem.