Companies · Other Energy

Ambri Inc.

Marlborough · Other Energy

Diligence memoA one-page analyst read on Ambri Inc. — recommendation, valuation, rhythm, risks.
$211.1M
Total raised · real
4
Rounds
8.3×
Latest step-up
Top 3%
Sector rank · raised
Series D+
Latest stage · inferred · Mon Aug 09 2021 00:00:00 GMT+0000 (Coordinated Universal Time)

Ambri Inc. looks fair 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 energy sector profile.

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

Fair
  • Modeled value is 0.92× the median modeled value of Series D+ Other Energy companies in 2019–2021 (10 peers) — value vs value, same stage and era.
  • Within the normal band (92% of peer median) for its niche.
Dormant
  • Last raise 4.9 yr ago; this sector typically re-raises about every 12 months.
  • Silent for over 3× the sector's normal cadence.
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 Energy

Ambri Inc. is one of 2048 Other Energy companies tracked from Marlborough. By capital raised it ranks among the largest (ahead of 98% of sector peers), and among the largest 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
14
Investors (latest)
2021-08-09
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$500M$1.0B$1.5B$2.0BSeries A · 2012-05-15 Raised $15M (real) Modeled valuation $159M (est)$15M$159MSeries A2012Series B · 2014-04-23 Raised $35M (real) Modeled valuation $406M (est)$35M$406MSeries B2014Series B · 2018-12-18 Raised $17M (real) Modeled valuation $201M (est)$17M$201MSeries B2018Series D+ · 2021-08-09 Raised $144M (real) Modeled valuation $1.6B (est)$144M$1.6BSeries D+2021+$35M+$17M+$144MCumulative $211M

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$15.0M · 2012
Series B$35.0M · 2014
Series B extension$17.3M · 2018
Series D+$143.8M · 2021no Series C on file

Stages are modeled from round size (public records carry no series label). No record for: Pre-Seed, Seed, Series C — the company may have raised it under a different exemption, merged it into an adjacent record, or skipped it. Sequence completeness: 50%.

Modeled valuation trajectory
$1.6B
Base estimate est.
$773.9M
Conservative case
$3.0B
Upside case
$1.2B
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series D+a $100M–$400M round). Valuation is modeled from stage benchmarks scaled by the energy sector profile. Directional, not a quoted figure.

Series A · modeled $158.5M · 2012-05-152012Series B · modeled $406.1M · 2014-04-23Series B · modeled $200.6M · 2018-12-18Series D+ · modeled $1.6B · 2021-08-092021
Model inputs · modeled:benchmark-stage-stepup-v1
12%
Dilution assumption
Implied ownership sold in the financing.
81%
Survival probability
65% low · 89% high
1.10×/yr
Annual markup
1.24×/yr upside case
4.9 yr
Elapsed time used
4.9 yr actual, capped for stale marks
energy
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
37 mo
Avg between rounds
$22.9M/yr
Capital velocity
14.1 yr
On record since
2012
First round
4
Rounds on file
How it compares to the market

Benchmarked against 2048 companies in Other Energy. 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) 62× above median
This company$211.1M
Sector median$3.4M
Latest round — vs other Series D+ rounds in sector (real $, this stage) 1.4× above median
This company$143.8M
Sector median$105.3M
Modeled value — vs sector median (estimate, all stages) 91× above median
This company$1.6B
Sector median$17.0M

Raised more than 98% of sector peers (real $). Modeled value above 98% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series D+) 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 #7 of 10.

This companyCohort peer
$10.0M$100.0M$1.0B$10.0B$100.0M$1.0BCapital raised (log)Coal Conversion Ventures, LLC · Series D+ Raised $400.0M · modeled $4.8B (est)Texas Eastern Transmission Lp · Series D+ Raised $300.0M · modeled $3.5B (est)Sion Power Corp · Series D+ Raised $310.3M · modeled $2.5B (est)Sunnova Energy International Inc. · Series D+ Raised $240.0M · modeled $2.2B (est)Syncwatt, Inc · Series D+ Raised $150.0M · modeled $1.8B (est)Renew Energy Efficiency Projects 3 LLC · Series D+ Raised $130.0M · modeled $1.6B (est)CleanCapital Holdings LLC · Series D+ Raised $124.2M · modeled $1.4B (est)Ample, Inc. · Series D+ Raised $255.3M · modeled $317.8M (est)Fulcrum Bioenergy Inc · Series D+ Raised $255.1M · modeled $60.0M (est)Ambri Inc. (this company) Raised $211.1M · modeled $1.6B (est)Ambri Inc.
CompanyStageRaised · realValue · estvs peer med.
Coal Conversion Ventures, LLCSeries D+$400.0M$4.8B2.86×
Texas Eastern Transmission LpSeries D+$300.0M$3.5B2.09×
Sion Power CorpSeries D+$310.3M$2.5B1.51×
Sunnova Energy International Inc.Series D+$240.0M$2.2B1.32×
Syncwatt, IncSeries D+$150.0M$1.8B1.07×
Renew Energy Efficiency Projects 3 LLCSeries D+$130.0M$1.6B0.93×
Ambri Inc. this companySeries D+$211.1M$1.6B0.92×
CleanCapital Holdings LLCSeries D+$124.2M$1.4B0.82×
Ample, Inc.Series D+$255.3M$317.8M0.19×
Fulcrum Bioenergy IncSeries D+$255.1M$60.0M0.04×
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$15.0M2012-05-15$68.2M$158.5M85%
Series B$35.0M2014-04-23$194.4M$406.1M85%
Series B$17.3M2018-12-18$96.1M$200.6M90%
Series D+$143.8M2021-08-09$1.2B$1.6B90%
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$15.0M2012-05-15
    • First recorded raise — entered as Series A.
    • 4 investors on this round.
  2. Series B$35.0M2014-04-23
    • Raised again after 23 mo — slower than the ~12 mo sector norm.
    • Round 2.3× larger than the prior — scaling up.
    • Switched to Rule 506(b) (was Rule 06).
    • 6 investors on this round.
  3. Series B$17.3M2018-12-18
    • Raised again after 56 mo — slower than the ~12 mo sector norm.
    • Round 2.0× smaller than the prior — bridge or down round.
    • 5 investors on this round.
  4. Series D+$143.8M2021-08-09
    • Raised again after 32 mo — slower than the ~12 mo sector norm.
    • Round 8.3× larger than the prior — scaling up.
    • 14 investors on this round.
Intelligence
2024 ~Q3
Modeled next raise · ~37mo cadence
$431.3M
Modeled next size est.range $280.3M$690.1M
8.3×
Last step-up
$22.9M/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
Daniel Leff10 other2018-12
Andrew Chung3 other2012-05
Donald Sadoway3 other2012-05
Adam Briggs1 other2018-12
David Bradwell1 other2012-05
Navin Wadhwani1 other2021-08
Christopher Papagianis2021-08
Lou Von Thaer2021-08
Patrick Song2018-12
Philip Giudice2012-05
Sophie De Richecour2012-05
Registry & provenance

Ambri 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
1550898
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
Ambri, Inc.Other EnergySeries A$11.1M$42.6Mnetwork3 shared operators · same sector
Arcadia Power, Inc.Other EnergySeries D+$557.5M$384.2Mnetwork1 shared operator · same sector · same stage
Maxeon Solar Technologies, Ltd.Other EnergySeries D+$207.0M$2.0Bsame sector · same stage
Par Petroleum Corp/CoOther EnergySeries D+$200.0M$2.4Bsame sector · same stage
Beamreach Solar, Inc.Other EnergySeries D+$199.9M$97.1Msame sector · same stage
Inergy Midstream, L.P.Other EnergySeries D+$225.0M$2.7Bsame sector · same stage
Deep Fission, Inc.Other EnergySeries D+$230.0M$559.6Msame sector · same stage
Ftai Energy Partners LlcOther EnergySeries D+$191.0M$2.3Bsame 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
Ambri, Inc.Other EnergySeries A$42.6M100%
AmmPower Corp.Other EnergySeed$18.2M87%
AMOGY Inc.Other EnergySeries C$70.3M85%
MMEX Resources CorpOther EnergySeed$12.1M83%
IA Energy Corp.Other EnergySeries A$116.3M82%
CleanCapital Holdings LLCOther EnergySeries D+$1.4B82%
Controlled Thermal Resources Holdings Inc.Other EnergySeries A$71.3M82%
Energy Domain, LLCOther EnergySeries A$15.7M82%
Frequently asked
How much funding has Ambri Inc. raised?
Ambri Inc. has raised approximately $211.1M in disclosed capital across 4 recorded financing rounds, aggregated from public filings.
What is Ambri Inc.'s estimated valuation?
Provath's modeled valuation for Ambri Inc. is approximately $1.6B (modeled range $773.9M–$3.0B). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Ambri Inc. at?
Ambri Inc.'s latest modeled financing stage is Series D+. Its most recent recorded round closed around Mon Aug 09.
What does Ambri Inc. do and where is it based?
Ambri Inc. operates in the Other Energy sector, based in Marlborough.
Explore related

See where Ambri 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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