Companies · Other

Biolargo, Inc.

WESTMINSTER · Other

Diligence memoA one-page analyst read on Biolargo, Inc. — recommendation, valuation, rhythm, risks.
$10.8M
Total raised · real
20
Rounds
1.1×
Latest step-up
Top 23%
Sector rank · raised
Seed
Latest stage · inferred · Fri Nov 17 2023 00:00:00 GMT+0000 (Coordinated Universal Time)

Biolargo, Inc. looks under-valued against its niche peers and is at-risk on financing cadence.

Synthesized from the figures below est. — every claim rests on a number shown on this page.

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 0.38× the median modeled value of Seed Other companies in 2022–2024 (1231 peers) — value vs value, same stage and era.
  • Issuer reports $5M–$25M revenue while modeled below niche peers.
At-risk
  • Last raise 2.6 yr ago; this sector typically re-raises about every 11 months.
  • Past due for a raise versus sector cadence — watch for distress or a bridge.

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

Issuer-vehicle patternmedium confidence

Biolargo, 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
17.5 yr record
Peak capital year was 2013 with $1.9M across 3 filings.
Market position
ahead of 78% of Other peers
Capital scale is ahead of 78% of Other peers; modeled value is above 22% 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
Lower 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
Consistent
Canonical totals and visible filing detail are broadly aligned.
What triggered this
  • Sector is still broad/Other, so operating comparables are weak.
  • No clearly named CEO/founder/principal role in the public records surfaced here.
  • No verified homepage on the profile yet.
  • Capital program peaked in 2013: $1.9M across 3 filings.
  • Largest single filing was $1.1M on 2010-08-10.
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.
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

Biolargo, Inc. is one of 25008 Other companies tracked from WESTMINSTER. By capital raised it ranks in the upper tier (ahead of 78% of sector peers), and in the long tail 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
$5M–$25M
Issuer revenue
Rule 506(b)
Reg D exemption
17
Investors (latest)
2023-11-17
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$13M$25M$38M$50MPre-Seed · 2008-12-18 Raised $723K (real) Modeled valuation $17M (est)Pre-Seed2008Pre-Seed · 2009-06-25 Raised $681K (real) Modeled valuation $16M (est)Pre-Seed · 2010-01-25 Raised $439K (real) Modeled valuation $10M (est)Pre-Seed2010Seed · 2010-08-10 Raised $1.1M (real) Modeled valuation $21M (est)Seed · 2011-01-19 Raised $979K (real) Modeled valuation $18M (est)Seed2011Pre-Seed · 2011-01-19 Raised $111K (real) Modeled valuation $2.6M (est)Seed · 2011-09-30 Raised $466K (real) Modeled valuation $8.7M (est)Seed2011Seed · 2012-01-30 Raised $1.1M (real) Modeled valuation $20M (est)Seed · 2012-05-30 Raised $321K (real) Modeled valuation $6.0M (est)Seed2012Seed · 2013-02-26 Raised $700K (real) Modeled valuation $13M (est)Pre-Seed · 2013-02-26 Raised $350K (real) Modeled valuation $8.1M (est)Pre-Seed2013Seed · 2013-09-03 Raised $863K (real) Modeled valuation $16M (est)Seed · 2014-08-06 Raised $287K (real) Modeled valuation $5.3M (est)Seed2014Seed · 2016-07-14 Raised $280K (real) Modeled valuation $5.2M (est)Seed · 2016-12-28 Raised $242K (real) Modeled valuation $4.5M (est)Seed2016Seed · 2016-12-30 Raised $250K (real) Modeled valuation $4.6M (est)Seed · 2017-06-27 Raised $217K (real) Modeled valuation $4.0M (est)Seed2017Seed · 2017-07-18 Raised $250K (real) Modeled valuation $4.6M (est)Seed · 2018-03-31 Raised $100K (real) Modeled valuation $1.9M (est)Seed2018Seed · 2019-04-18 Raised $200K (real) Modeled valuation $3.7M (est)Seed · 2022-04-18 Raised $726K (real) Modeled valuation $6.9M (est)Seed2022Seed · 2023-11-17 Raised $815K (real) Modeled valuation $4.3M (est)Cumulative $11M

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
Pre-Seed$723K · 2008
Pre-Seed extension$681K · 2009
Pre-Seed extension$439K · 2010
Seed$1.1M · 2010
Seed extension$979K · 2011
Bridge · Seed-stage$111K · 2011smaller follow-on
Seed extension$466K · 2011
Seed extension$1.1M · 2012
Seed extension$321K · 2012
Seed extension$700K · 2013
Bridge · Seed-stage$350K · 2013smaller follow-on
Seed extension$863K · 2013
Seed extension$287K · 2014
Seed extension$280K · 2016
Seed extension$242K · 2016
Seed extension$250K · 2016
Seed extension$217K · 2017
Seed extension$250K · 2017
Seed extension$100K · 2018
Seed extension$200K · 2019
Seed extension$726K · 2022
Seed extension$815K · 2023

Stages are modeled from round size (public records carry no series label). Ladder is contiguous — every modeled rung has a record.

Modeled valuation trajectory
$4.3M
Base estimate est.
$734K
Conservative case
$13.6M
Upside case
$4.1M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Seeda $1.0M–$4.0M round). Valuation is modeled from stage benchmarks. Directional, not a quoted figure.

Pre-Seed · modeled $16.7M · 2008-12-182008Pre-Seed · modeled $15.7M · 2009-06-25Pre-Seed · modeled $10.1M · 2010-01-25Seed · modeled $21.2M · 2010-08-10Seed · modeled $18.2M · 2011-01-19Pre-Seed · modeled $2.6M · 2011-01-19Seed · modeled $8.7M · 2011-09-30Seed · modeled $20.2M · 2012-01-30Seed · modeled $6.0M · 2012-05-30Seed · modeled $13.0M · 2013-02-26Pre-Seed · modeled $8.1M · 2013-02-26Seed · modeled $16.0M · 2013-09-03Seed · modeled $5.3M · 2014-08-06Seed · modeled $5.2M · 2016-07-14Seed · modeled $4.5M · 2016-12-28Seed · modeled $4.6M · 2016-12-30Seed · modeled $4.0M · 2017-06-27Seed · modeled $4.6M · 2017-07-18Seed · modeled $1.9M · 2018-03-31Seed · modeled $3.7M · 2019-04-18Seed · modeled $6.9M · 2022-04-18Seed · modeled $4.3M · 2023-11-172023
Model inputs · modeled:benchmark-stage-stepup-v1
20%
Dilution assumption
Implied ownership sold in the financing.
40%
Survival probability
18% low · 62% high
1.45×/yr
Annual markup
1.90×/yr upside case
2.6 yr
Elapsed time used
2.6 yr actual, capped for stale marks
general
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
9 mo
Avg between rounds
$722K/yr
Capital velocity
17.5 yr
On record since
2008
First round
22
Rounds on file
How it compares to the market

Benchmarked against 25008 companies in Other. 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) 5.3× above median
This company$10.8M
Sector median$2.0M
Latest round — vs other Seed rounds in sector (real $, this stage) 0.5× of median
This company$815K
Sector median$1.7M
Modeled value — vs sector median (estimate, all stages) 0.2× of median
This company$4.3M
Sector median$17.7M

Raised more than 78% of sector peers (real $). Modeled value above 22% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Seed) 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 #1131 of 1,231.

This companyCohort peer
$1.0M$10.0M$100.0M$1.0M$10.0M$100.0MCapital raised (log)Dropee Inc. · Seed Raised $3.9M · modeled $40.6M (est)NFH Northern Project Development, LLC · Seed Raised $4.0M · modeled $40.6M (est)FactorFund-Note-2022 LLC · Seed Raised $4.0M · modeled $40.0M (est)Immersion Elements LLC · Seed Raised $3.8M · modeled $39.9M (est)Possip, Inc. · Seed Raised $5.8M · modeled $39.6M (est)Porch Group, Inc. · Seed Raised $6.0M · modeled $38.8M (est)Rootwurks, Inc. · Seed Raised $3.9M · modeled $38.7M (est)Cordelia Capital Holdings Inc. · Seed Raised $3.9M · modeled $38.3M (est)99 Counties, Inc. · Seed Raised $3.7M · modeled $38.1M (est)2910 Richmond Hill 1 LLC · Seed Raised $3.8M · modeled $37.5M (est)BH Polycor Holding Inc. · Seed Raised $3.9M · modeled $37.0M (est)FitJoy, Inc. · Seed Raised $3.7M · modeled $36.9M (est)Biolargo, Inc. (this company) Raised $10.8M · modeled $4.3M (est)Biolargo, Inc.
CompanyStageRaised · realValue · estvs peer med.
Dropee Inc.Seed$3.9M$40.6M3.61×
NFH Northern Project Development, LLCSeed$4.0M$40.6M3.61×
FactorFund-Note-2022 LLCSeed$4.0M$40.0M3.56×
Immersion Elements LLCSeed$3.8M$39.9M3.55×
Possip, Inc.Seed$5.8M$39.6M3.52×
Porch Group, Inc.Seed$6.0M$38.8M3.45×
Rootwurks, Inc.Seed$3.9M$38.7M3.44×
Cordelia Capital Holdings Inc.Seed$3.9M$38.3M3.41×
99 Counties, Inc.Seed$3.7M$38.1M3.38×
2910 Richmond Hill 1 LLCSeed$3.8M$37.5M3.33×
BH Polycor Holding Inc.Seed$3.9M$37.0M3.28×
FitJoy, Inc.Seed$3.7M$36.9M3.28×
Biolargo, Inc. this companySeed$10.8M$4.3M0.38×
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.
Pre-Seed$723K2008-12-18$4.0M$16.7M85%
Pre-Seed$681K2009-06-25$3.8M$15.7M85%
Pre-Seed$439K2010-01-25$2.4M$10.1M85%
Seed$1.1M2010-08-10$5.7M$21.2M85%
Seed$979K2011-01-19$4.9M$18.2M85%
Pre-Seed$111K2011-01-19$617K$2.6M85%
Seed$466K2011-09-30$2.3M$8.7M85%
Seed$1.1M2012-01-30$5.4M$20.2M85%
Seed$321K2012-05-30$1.6M$6.0M85%
Seed$700K2013-02-26$3.5M$13.0M85%
Pre-Seed$350K2013-02-26$1.9M$8.1M85%
Seed$863K2013-09-03$4.3M$16.0M85%
Seed$287K2014-08-06$1.4M$5.3M85%
Seed$280K2016-07-14$1.4M$5.2M85%
Seed$242K2016-12-28$1.2M$4.5M90%
Seed$250K2016-12-30$1.3M$4.6M90%
Seed$217K2017-06-27$1.1M$4.0M90%
Seed$250K2017-07-18$1.3M$4.6M90%
Seed$100K2018-03-31$500K$1.9M90%
Seed$200K2019-04-18$1.0M$3.7M90%
Seed$726K2022-04-18$3.6M$6.9M90%
Seed$815K2023-11-17$4.1M$4.3M90%
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. Pre-Seed$723K2008-12-18
    • First recorded raise — entered as Pre-Seed.
    • 18 investors on this round.
  2. Pre-Seed$681K2009-06-25
    • Came back fast: 6 mo vs the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 23 investors on this round.
  3. Pre-Seed$439K2010-01-25
    • Raised 7 mo later, in step with the ~11 mo sector norm.
    • Round 1.6× smaller than the prior — bridge or down round.
    • 18 investors on this round.
  4. Seed$1.1M2010-08-10
    • Came back fast: 6 mo vs the ~11 mo sector norm.
    • Round 2.6× larger than the prior — scaling up.
    • 41 investors on this round.
  5. Seed$979K2011-01-19
    • Came back fast: 5 mo vs the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 43 investors on this round.
  6. Pre-Seed$111K2011-01-19
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 8.8× smaller than the prior — bridge or down round.
    • 4 investors on this round.
  7. Seed$466K2011-09-30
    • Raised 8 mo later, in step with the ~11 mo sector norm.
    • Round 4.2× larger than the prior — scaling up.
    • Switched to Rule 505 (was Rule 06).
    • 16 investors on this round.
  8. Seed$1.1M2012-01-30
    • Came back fast: 4 mo vs the ~11 mo sector norm.
    • Round 2.3× larger than the prior — scaling up.
    • Switched to Rule 06 (was Rule 505).
    • 32 investors on this round.
  9. Seed$321K2012-05-30
    • Came back fast: 4 mo vs the ~11 mo sector norm.
    • Round 3.4× smaller than the prior — bridge or down round.
    • 8 investors on this round.
  10. Seed$700K2013-02-26
    • Raised 9 mo later, in step with the ~11 mo sector norm.
    • Round 2.2× larger than the prior — scaling up.
    • 13 investors on this round.
  11. Pre-Seed$350K2013-02-26
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 2.0× smaller than the prior — bridge or down round.
    • 8 investors on this round.
  12. Seed$863K2013-09-03
    • Came back fast: 6 mo vs the ~11 mo sector norm.
    • Round 2.5× larger than the prior — scaling up.
    • Switched to Rule 506(b) (was Rule 06).
    • 23 investors on this round.
  13. Seed$287K2014-08-06
    • Raised 11 mo later, in step with the ~11 mo sector norm.
    • Round 3.0× smaller than the prior — bridge or down round.
    • 10 investors on this round.
  14. Seed$280K2016-07-14
    • Raised again after 23 mo — slower than the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 2 investors on this round.
  15. Seed$242K2016-12-28
    • Came back fast: 5 mo vs the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 4 investors on this round.
  16. Seed$250K2016-12-30
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round roughly the size of the prior one.
    • 2 investors on this round.
  17. Seed$217K2017-06-27
    • Came back fast: 6 mo vs the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 4 investors on this round.
  18. Seed$250K2017-07-18
    • Came back fast: 1 mo vs the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • 2 investors on this round.
  19. Seed$100K2018-03-31
    • Raised 8 mo later, in step with the ~11 mo sector norm.
    • Round 2.5× smaller than the prior — bridge or down round.
    • 1 investor on this round.
  20. Seed$200K2019-04-18
    • Raised 13 mo later, in step with the ~11 mo sector norm.
    • Round 2.0× larger than the prior — scaling up.
    • Revenue band moved $0–$1M → $1M–$5M.
    • 1 investor on this round.
  21. Seed$726K2022-04-18
    • Raised again after 36 mo — slower than the ~11 mo sector norm.
    • Round 3.6× larger than the prior — scaling up.
    • 4 investors on this round.
  22. Seed$815K2023-11-17
    • Raised again after 19 mo — slower than the ~11 mo sector norm.
    • Round roughly the size of the prior one.
    • Revenue band moved $1M–$5M → $5M–$25M.
    • 17 investors on this round.
Intelligence
2024 ~Q3
Modeled next raise · ~9mo cadence
$915K
Modeled next size est.range $815K$1.5M
1.1×
Last step-up
$722K/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
DENNIS P CALVERT1 other2008-12
Charles K. Dargan2012-01
CHARLES K DARGAN, II2008-12
Christina E. Bray2023-11
DENNIS E MARSHALL2008-12
GARY A COX2008-12
Jack B. Strommen2017-06
John S. Runyan2011-09
JOSEPH L PROVENZANO2008-12
Kenneth R. Code2011-09
KENNETH REAY CODE2008-12
Kent C. Roberts, II2011-09
Linda E. Park2023-11
Registry & provenance

Biolargo, 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
880242
SEC CIK
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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.

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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
BioLargo Energy Technologies Inc.Other EnergyPre-Seed$1.9M87%
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Biomason Inc.OtherSeries C$258.5M86%
bioProtonics, Inc.OtherSeed$425K84%
BioTork LLCOtherSeed$45.2M84%
Bioventrix IncOtherSeries B$20.8M83%
BioFluff Inc.OtherSeed$13.6M83%
Genecis Bioindustries Inc.OtherSeries A$2.6M83%
Frequently asked
How much funding has Biolargo, Inc. raised?
Biolargo, Inc. has raised approximately $10.8M in disclosed capital across 20 recorded financing rounds, aggregated from public filings.
What is Biolargo, Inc.'s estimated valuation?
Provath's modeled valuation for Biolargo, Inc. is approximately $4.3M (modeled range $734K–$13.6M). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Biolargo, Inc. at?
Biolargo, Inc.'s latest modeled financing stage is Seed. Its most recent recorded round closed around Fri Nov 17.
What does Biolargo, Inc. do and where is it based?
Biolargo, Inc. operates in the Other sector, based in WESTMINSTER.
Explore related

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

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