Diligence memo · auto-generated · as of July 2, 2026
Perosphere Inc.
Perosphere Inc. looks fair against its niche peers and is dormant on financing cadence.
Businessfiled
Perosphere Inc. operates in Pharmaceuticals, based in MOUNT KISCO.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Perosphere Inc. has raised $9.4M in disclosed capital across 3 recorded rounds, aggregated from public filings. Its latest round is modeled as Series A (a $4.0M–$15M round).
Largest single filing: $6.2M on 2015-10-08.
Most recent recorded round closed around 2015-10-08.
Valuation (modeled)modeled
Provath models Perosphere Inc. at approximately $192M (range $7.1M–$1.0B). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Fair. Modeled value is 0.98× the median modeled value of Series A Pharmaceuticals companies in 2013–2015 (64 peers) — value vs value, same stage and era. Within the normal band (98% of peer median) for its niche.
Financing rhythm & timingmixed
Historic cadence: a new round about every 23 months.
Last raise 10.7 yr ago; this sector typically re-raises about every 13 months.
Silent for over 3× the sector's normal cadence.
The last round was 2.9× smaller than the prior — a bridge or down round.
Comparablesmixed
Capital scale ranks ahead of 52% of Pharmaceuticals peers (1613 compared).
Modeled value ranks above 68% of those peers.
Closest niche peers: Aquinox Pharmaceuticals (Usa) Inc, Neurovia, Inc., Romark Global Pharma, LLC, Access Pharmaceuticals Inc, Minnesota Medical Solutions 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.