Most Active E-commerce Investors in Boston 2026

10 firms writing E-commerce checks in Boston, led by Contour Venture Partners, Techstars Ventures.

E-commerce in Boston accounts for 5 tracked companies with verified cap-table data, 5 of which disclose round sizes totalling $2.4B. The median disclosed raise is $375M, and the largest is Thrasio at $1B, ahead of Thumbtack ($926M) and DraftKings ($375M).

The names that recur most often on these e-commerce cap tables are Advent International (1 company), Oaktree Capital Management (1 company), Western Technology Investment (1 company), Peak6 Investments (1 company), Upper90 (1 company), RiverPark Ventures (1 company). By latest disclosed round, the market skews Series D (1), Growth (1), Seed (1), Series C (1).

Companies tracked: 5
Disclosed funding total: $2.4B across 5 companies
Median disclosed raise: $375M
Largest raise: Thrasio — $1B
Stage mix: Series D 1 · Growth 1 · Seed 1 · Series C 1
Most recent dated round: 2025-09-18

Best funded E-commerce in Boston companies

Thrasio — $1B (latest: Series D)
Thumbtack — $926M (latest: Growth)
DraftKings — $375M (latest: Seed)
Gametime — $94M (latest: Series C)
Slate Milk — $23M (latest: Series B)

Sector × city funding reports (20)

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