Diligence memo · auto-generated · as of July 3, 2026
Whistle Sports, Inc.
Whistle Sports, Inc. has raised $133M over 5 rounds; too few niche peers to rank its valuation yet.
Businessfiled
Whistle Sports, Inc. operates in Sports & Fitness, based in NEW YORK.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Whistle Sports, Inc. has raised $133M in disclosed capital across 5 recorded rounds, aggregated from public filings. Its latest round is modeled as Series C (a $40M–$100M round).
Largest single filing: $66M on 2018-06-18.
Most recent recorded round closed around 2018-06-18.
Valuation (modeled)modeled
Provath models Whistle Sports, Inc. at approximately $1.1B (range $254M–$3.0B). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Too few comparable companies in this niche to rank the valuation fairly yet.
Financing rhythm & timingmixed
Historic cadence: a new round about every 12 months.
Last raise 8.0 yr ago; this sector typically re-raises about every 14 months.
Silent for over 3× the sector's normal cadence.
The last round stepped up 1.7× from the prior — scaling.
Comparablesmixed
Capital scale ranks ahead of 99% of Sports & Fitness peers (214 compared).
Modeled value ranks above 98% of those peers.
Closest niche peers: Bruin Sports Capital, Llc.
Peoplefiled
12 named people on file across officers, directors and signatories.
Risks & flagsmixed
Financing has been silent well beyond sector cadence — possibly defunct, acquired, or paused.
No clearly named CEO/founder/principal in the surfaced records — key-person evidence is thin.