Mainsail Partners — 2025 Investments

3 investments dated 2025 · listed companies and verified rows first · show all

Flyntlok inOct 2025 · $36M

Anchorage, US

Sean McLaughlin(Chief Executive Officer, President, Treasurer)inDavid Hoffman(Vice President and Secretary)

BoardSteven Murray(Director)Laura McLaughlin(Director)

Steelhead Technologiesgosteelhead.com inDec 2025

Steelhead provides production visibility and management software for manufacturing operations, enabling real-time tracking of parts, profitability, productivity, and quality through operator workboards and granular production data.

Advanced ManufacturingEnterprise SoftwareSaaSCalumet, US

Jeffrey Halonen(Executive Officer, Director)

BoardJustin Moore(Director)inJay Po(Director)Brent Halonen(Director)

Co-investorsInnovius Capital Stage 2 Capital TIA Ventures C2 Ventures Stage Capital

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Mint Aggregator LP

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.