Companies · Other Health Care

Prosomnus Holdings Inc.

PLEASANTON · Other Health Care

Diligence memoA one-page analyst read on Prosomnus Holdings Inc. — recommendation, valuation, rhythm, risks.
$20.7M
Total raised · real
3
Rounds
2.4×
Latest step-up
Top 16%
Sector rank · raised
Series A
Latest stage · inferred · Mon Dec 31 2018 00:00:00 GMT+0000 (Coordinated Universal Time)

Prosomnus Holdings Inc. looks under-valued against its niche peers and is dormant on financing cadence.

Synthesized from the figures below est. — every claim rests on a number shown on this page. Valuation uses the health care sector profile.

Analyst read est. — computed against this company's niche peers in the same era. Inputs shown; not a quoted figure.

Under-valued
  • Modeled value is 0.58× the median modeled value of Series A Other Health Care companies in 2016–2018 (157 peers) — value vs value, same stage and era.
Dormant
  • Last raise 7.5 yr ago; this sector typically re-raises about every 14 months.
  • Silent for over 3× the sector's normal cadence.

Procedural diagnosis est. — rule-based common-sense checks over the filing pattern, issuer name, activity cadence, and surfaced operating evidence.

Issuer-vehicle patternmedium confidence

Prosomnus Holdings Inc. behaves more like a recurring private-offering issuer than a conventional venture-backed operating company.

Issuer structure
Company-like
No recurring-offering pattern strong enough to override normal financing interpretation.
Lifecycle
15.2 yr record
Peak capital year was 2017 with $29.6M across 4 filings.
Market position
ahead of 85% of Other Health Care peers
Capital scale is ahead of 85% of Other Health Care peers; modeled value is above 72% of peers by modeled value. Large capital with mid-pack modeled value can signal an issuer/program profile rather than operating-company growth.
Valuation reliability
Normal applicability
Stage/dilution valuation models are weakest when the issuer is broad-sector, recurring, or vehicle-like.
Operating evidence
Sparse
No clear CEO/founder/principal role is surfaced, so operating-company confidence is lower.
Data quality
Needs review
Row-level filing totals differ from canonical totals, so amendment/superseded filtering should be checked.
What triggered this
  • Legal name looks like an issuer vehicle rather than a product company.
  • No clearly named CEO/founder/principal role in the public records surfaced here.
  • No verified homepage on the profile yet.
  • Capital program peaked in 2017: $29.6M across 4 filings.
  • Largest single filing was $9.2M on 2017-05-11.
  • Filing rows sum to $42.6M, while canonical raised total is $20.7M; likely amendments/superseded rows are mixed into the detail view.
How to read the page
  • Read this less like a startup funding journey and more like a capital-raising program.
  • Stage-based valuation and peer labels have lower applicability for this pattern.
  • The more important signal is lifecycle: repeated filings ended years ago, so current activity needs outside confirmation.
  • Canonical filtering should be tightened before using row-level totals for diligence.
Leadership

No named principal in this company's public records yet — see all operators below.

Explore how these operators interlock with other companies in the operator network.

Where it sits in Other Health Care

Prosomnus Holdings Inc. is one of 5377 Other Health Care companies tracked from PLEASANTON. By capital raised it ranks in the upper tier (ahead of 85% of sector peers), and in the upper tier by modeled valuation est..

Ranking is computed against this company's own sector cohort — reported capital is fact; valuation tiers are modeled.

As reported in public records reported — not modeled.

US
Jurisdiction
Rule 506(b)
Reg D exemption
36
Investors (latest)
2018-12-31
First sale
Amount raised vs valuation, by round

Solid bars are reported offering amounts reported; hatched bars are the modeled post-money valuation est. — both on one shared scale so you can read raise-vs-worth at each round directly. Use the toggles to overlay data labels and the niche-peer / market average value lines.

Amount raised · realModeled valuation · estCumulative funded · real
$0$50M$100M$150M$200MSeries A · 2011-05-02 Raised $8.0M (real) Modeled valuation $161M (est)Series A2011Series A · 2017-05-11 Raised $9.2M (real) Modeled valuation $185M (est)Series A2017Series A · 2017-05-11 Raised $9.1M (real) Modeled valuation $183M (est)Series A2017Seed · 2017-05-11 Raised $2.2M (real) Modeled valuation $55M (est)Seed2017Series A · 2017-05-11 Raised $9.2M (real) Modeled valuation $185M (est)Series A2017Seed · 2018-12-31 Raised $1.5M (real) Modeled valuation $37M (est)Seed2018Series A · 2018-12-31 Raised $3.5M (real) Modeled valuation $71M (est)Series A2018+$9.2M+$9.1M+$2.2M+$9.2M+$1.5M+$3.5MCumulative $43M

The line shows cumulative reported funding over the period; + labels show new capital added between points when there is room. Toggle on-bar figures, plus the niche-peer and market averages, to read this company against its cohort. Benchmarks are modeled medians.

Financing ladder & sequence gaps
Series A$8.0M · 2011
Series A extension$9.2M · 2017
Series A extension$9.1M · 2017
Bridge · Series A-stage$2.2M · 2017smaller follow-on
Series A extension$9.2M · 2017
Bridge · Series A-stage$1.5M · 2018smaller follow-on
Series A extension$3.5M · 2018

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 67%.

Modeled valuation trajectory
$70.6M
Base estimate est.
$4.5M
Conservative case
$384.0M
Upside case
$15.9M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series Aa $4.0M–$15M round). Valuation is modeled from stage benchmarks scaled by the health care sector profile. Directional, not a quoted figure.

Series A · modeled $161.4M · 2011-05-022011Series A · modeled $185.1M · 2017-05-11Series A · modeled $183.1M · 2017-05-11Seed · modeled $55.1M · 2017-05-11Series A · modeled $185.1M · 2017-05-11Seed · modeled $36.5M · 2018-12-31Series A · modeled $70.6M · 2018-12-312018
Model inputs · modeled:benchmark-stage-stepup-v1
22%
Dilution assumption
Implied ownership sold in the financing.
52%
Survival probability
28% low · 71% high
1.43×/yr
Annual markup
1.80×/yr upside case
6.0 yr
Elapsed time used
7.5 yr actual, capped for stale marks
health care
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
15 mo
Avg between rounds
$2.7M/yr
Capital velocity
15.2 yr
On record since
2011
First round
7
Rounds on file
How it compares to the market

Benchmarked against 5377 companies in Other Health Care. Each bar is a median (the middle company, not an average — outliers don't skew it). Two yardsticks: real money raised (reported on Form D) and modeled value (our estimate est.). These are whole-sector medians across all stages, except the per-stage row.

Total raised — vs sector median (real $, all stages) 8.5× above median
This company$20.7M
Sector median$2.4M
Latest round — vs other Series A rounds in sector (real $, this stage) 0.6× of median
This company$3.5M
Sector median$5.6M
Modeled value — vs sector median (estimate, all stages) 3.2× above median
This company$70.6M
Sector median$22.1M

Raised more than 85% of sector peers (real $). Modeled value above 72% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series A) that last raised in the same ~3-year era, ranked by modeled value est. (not money raised). This is the exact set the analyst read compares against, so a like-for-like cohort is what makes "over/under-valued" meaningful. This company ranks #130 of 157.

This companyCohort peer
$10.0M$100.0M$1.0B$10.0M$100.0MCapital raised (log)HemoSonics, LLC · Series A Raised $24.9M · modeled $302.7M (est)Airxpanders Inc · Series A Raised $60.0M · modeled $300.5M (est)Mercator Medsystems Inc · Series A Raised $20.5M · modeled $289.2M (est)Simple Contacts Inc. · Series A Raised $24.1M · modeled $285.5M (est)AVG Holdings, Inc. · Series A Raised $14.0M · modeled $282.5M (est)Avia Holdings, Llc · Series A Raised $27.9M · modeled $272.7M (est)Traditions at Rivertown Park, LLC · Series A Raised $13.5M · modeled $272.4M (est)Access Integrated Healthcare, LLC · Series A Raised $13.2M · modeled $265.8M (est)Gauss Surgical, Inc. · Series A Raised $20.5M · modeled $254.2M (est)4WEB, Inc. · Series A Raised $12.5M · modeled $252.2M (est)Iantech, Inc. · Series A Raised $12.2M · modeled $246.7M (est)AbsoluteCARE, Inc. · Series A Raised $25.7M · modeled $242.6M (est)Prosomnus Holdings Inc. (this company) Raised $20.7M · modeled $70.6M (est)Prosomnus Holdings Inc.
CompanyStageRaised · realValue · estvs peer med.
HemoSonics, LLCSeries A$24.9M$302.7M2.50×
Airxpanders IncSeries A$60.0M$300.5M2.48×
Mercator Medsystems IncSeries A$20.5M$289.2M2.39×
Simple Contacts Inc.Series A$24.1M$285.5M2.36×
AVG Holdings, Inc.Series A$14.0M$282.5M2.33×
Avia Holdings, LlcSeries A$27.9M$272.7M2.25×
Traditions at Rivertown Park, LLCSeries A$13.5M$272.4M2.25×
Access Integrated Healthcare, LLCSeries A$13.2M$265.8M2.20×
Gauss Surgical, Inc.Series A$20.5M$254.2M2.10×
4WEB, Inc.Series A$12.5M$252.2M2.08×
Iantech, Inc.Series A$12.2M$246.7M2.04×
AbsoluteCARE, Inc.Series A$25.7M$242.6M2.00×
Prosomnus Holdings Inc. this companySeries A$20.7M$70.6M0.58×
Full financing history

Stage is inferred from round size est., not reported on the filing — a round's dollar size maps to a bucket: Pre-Seed <$1.0M · Seed $1.0M–$4.0M · Series A $4.0M–$15M · Series B $15M–$40M · Series C $40M–$100M · Series D+ $100M–$400M · Growth/Late >$400M.

StageAmount · realAnnouncedPost-money · estValue · estConf.
Series A$8.0M2011-05-02$36.4M$161.4M85%
Series A$9.2M2017-05-11$41.7M$185.1M90%
Series A$9.1M2017-05-11$41.3M$183.1M90%
Seed$2.2M2017-05-11$11.1M$55.1M90%
Series A$9.2M2017-05-11$41.7M$185.1M90%
Seed$1.5M2018-12-31$7.4M$36.5M90%
Series A$3.5M2018-12-31$15.9M$70.6M90%
What happened at each round

Step-up, pace versus the sector's normal cadence, and revenue/exemption moves — read straight from the reported round facts reported.

  1. Series A$8.0M2011-05-02
    • First recorded raise — entered as Series A.
    • 24 investors on this round.
  2. Series A$9.2M2017-05-11
    • Raised again after 72 mo — slower than the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • Switched to Rule 506(b) (was Rule 06).
    • 38 investors on this round.
  3. Series A$9.1M2017-05-11
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round roughly the size of the prior one.
    • 35 investors on this round.
  4. Seed$2.2M2017-05-11
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 4.1× smaller than the prior — bridge or down round.
    • 15 investors on this round.
  5. Series A$9.2M2017-05-11
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 4.1× larger than the prior — scaling up.
    • 38 investors on this round.
  6. Seed$1.5M2018-12-31
    • Raised 20 mo later, in step with the ~14 mo sector norm.
    • Round 6.2× smaller than the prior — bridge or down round.
    • 23 investors on this round.
  7. Series A$3.5M2018-12-31
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 2.4× larger than the prior — scaling up.
    • 36 investors on this round.
Intelligence
2020 ~Q2
Modeled next raise · ~15mo cadence
$8.3M
Modeled next size est.range $5.4M$13.3M
2.4×
Last step-up
$2.7M/yr
Capital velocity

Predictive signals are modeled est. from this company's own cadence and step-up, plus sector benchmarks — directional, not advice. Peer set and a CSV export live in your analyst workspace.

Key people & operators

Officers, directors and promoters named in this company's public recordsreported — the people who run it (not its investors). "Also runs" counts come from name-matching across all records, so verify before acting.

PersonRoleAlso runsTied since
John Foster9 other2017-05
WILLIAM JOHNSON9 other2017-05
John H. Foster3 other2011-05
Leslie Cross2 other2017-05
Laing Rikkers1 other2017-05
Len Hedge1 other2017-05
Michael S Rawlings1 other2011-05
Timothy E. Foster1 other2011-05
Tom C Davis1 other2011-05
Jeffrey E Zellmer2011-05
Keith E Reinhard2011-05
Keith Reinhard2017-05
Kimberly Lynn Sickinger2011-05
Laing F Rikkers2011-05
Lee A Culp2011-05
Len Liptak2017-05
Michael Mogul2017-05
Mindy Hungerman2017-05
Mortimer Berkowitz2017-05
Mortimer Lynn Berkowitz III2011-05
Pedram Salimpour2017-05
Robert A Starr2011-05
Robert Starr2017-05
Stephen Curley2017-05
Registry & provenance

Prosomnus Holdings Inc. is an official record sourced from the U.S. Securities and Exchange Commission (SEC). U.S. data is aggregated from SEC Form D filings.

United States
Country of record
US
Jurisdiction
1058956
SEC CIK
Similar companies

Nearest neighbours across the whole database — matched on sector, stage and capital scale, and on shared operators (officers or directors named at both companies in public filings). A discovery shortlist, not a valuation cohort — verify before acting, the same way modeled figures are directional.

CompanySectorStageRaised · realValue · estWhy similar
ProSomnus, Inc.Other Health CareSeries A$10.1M$64.5Mnetwork2 shared operators · same sector · same stage
Alphatec Holdings, Inc.Other Health CareSeries C$133.7M$608.7Mnetwork3 shared operators · same sector
BioHorizons, Inc.Other Health CareSeries C$64.1M$34.3Mnetwork2 shared operators · same sector
InnerSpace Neuro Solutions, Inc.Other Health CareSeries A$8.8M$15.6Mnetwork1 shared operator · same sector · same stage
Ark National Holdings LLCOther Health CareSeries A$21.0M$83.0Msame sector · same stage
Zipnosis, Inc.Other Health CareSeries A$20.3M$61.5Msame sector · same stage
Access Scientific IncOther Health CareSeries A$21.4M$80.7Msame sector · same stage
WaveMark IncOther Health CareSeries A$18.9M$56.9Msame sector · same stage
Semantically similar

Matched by meaning, not labels — a local language model reads each company's name, sector and description and ranks the closest in that learned space. This catches look-alikes that cross sector boundaries; the structured list above explains its matches, this one trusts the text. Directional, like every modeled signal here.

CompanySectorStageValue · estMatch
ProSomnus, Inc.Other Health CareSeries A$64.5M98%
Proskriptive, Inc.Other Health CarePre-Seed$6.2M88%
Prolaio, Inc.Other Health CareSeries B$224.0M87%
Proxima, Inc.Other Health CareSeed$4.5M86%
Protean Biodiagnostics Inc.Other Health CareSeries A$35.4M85%
Procyrion, Inc.Other Health CareSeries C$543.3M85%
Proterris Inc.Other Health CareSeed$49.6M85%
NovaSom, IncOther Health CareSeries B$82.0M84%
Frequently asked
How much funding has Prosomnus Holdings Inc. raised?
Prosomnus Holdings Inc. has raised approximately $20.7M in disclosed capital across 3 recorded financing rounds, aggregated from public filings.
What is Prosomnus Holdings Inc.'s estimated valuation?
Provath's modeled valuation for Prosomnus Holdings Inc. is approximately $70.6M (modeled range $4.5M–$384.0M). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Prosomnus Holdings Inc. at?
Prosomnus Holdings Inc.'s latest modeled financing stage is Series A. Its most recent recorded round closed around Mon Dec 31.
What does Prosomnus Holdings Inc. do and where is it based?
Prosomnus Holdings Inc. operates in the Other Health Care sector, based in PLEASANTON.
Explore related

See where Prosomnus Holdings Inc. sits in the wider market — its sector, location and stage cohorts, each with their own leaderboards and capital-flow timelines.

Is this your company?

If you work at Prosomnus Holdings Inc., claim this profile or suggest a correction. We aggregate from public filings, so help us keep your description, website and links accurate.

Is this your company? Update your profile or add contact details — and choose exactly who can reach you. Reviewed before anything is published.