Mariya Valeva is a Fractional CFO and founder of FounderFirst, where they help fast-growing B2B SaaS startups and SMBs gain financial control. Since launching FounderFirst in 2024, they have provided bespoke financial modeling, investor-ready reporting, and strategic support. Mariya also serves as a Mentor to B2B Ventures at Harvard Innovation Labs and as a Fractional CFO/COO at Meraki Ventures, supporting startups from Seed funding to Series B. With experience working with over 20 early- and growth-stage startups, Mariya has played a vital role in scaling revenues and building finance functions across various sectors.
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