Companies · Other Health Care

MicroTransponder, Inc.

Austin · Other Health Care

Diligence memoA one-page analyst read on MicroTransponder, Inc. — recommendation, valuation, rhythm, risks.
$117.7M
Total raised · real
12
Rounds
0.8×
Latest step-up
Top 4%
Sector rank · raised
Series C
Latest stage · inferred · Wed Mar 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

MicroTransponder, Inc. looks fair against its niche peers and is active 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.

Fair
  • Modeled value is 0.99× the median modeled value of Series C Other Health Care companies in 2025–2027 (20 peers) — value vs value, same stage and era.
  • Within the normal band (99% of peer median) for its niche.
Active
  • Last raise 16 mo ago; this sector typically re-raises about every 14 months.
  • Raising on or ahead of the sector's normal rhythm.
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

MicroTransponder, Inc. is one of 5376 Other Health Care companies tracked from Austin. By capital raised it ranks among the largest (ahead of 97% 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
19
Investors (latest)
2025-03-05
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$250M$500M$750M$1.0BPre-Seed · 2008-04-21 Raised $500K (real) Modeled valuation $15M (est)Pre-Seed2008Seed · 2009-01-23 Raised $2.7M (real) Modeled valuation $66M (est)Seed2009Seed · 2010-03-03 Raised $2.0M (real) Modeled valuation $50M (est)Seed2010Seed · 2012-05-31 Raised $1.3M (real) Modeled valuation $31M (est)Seed2012Seed · 2012-12-14 Raised $3.1M (real) Modeled valuation $76M (est)Seed2012Seed · 2015-09-15 Raised $3.9M (real) Modeled valuation $97M (est)Seed2015Series A · 2017-05-16 Raised $5.5M (real) Modeled valuation $112M (est)Series A2017Series A · 2017-11-08 Raised $12M (real) Modeled valuation $234M (est)Series A2017Series A · 2020-08-31 Raised $5.8M (real) Modeled valuation $109M (est)Series A2020Series A · 2021-06-29 Raised $6.0M (real) Modeled valuation $85M (est)Series A2021Series B · 2022-06-03 Raised $33M (real) Modeled valuation $406M (est)Series B2022Series C · 2022-06-03 Raised $43M (real) Modeled valuation $599M (est)Series C2022Series C · 2025-03-05 Raised $32M (real) Modeled valuation $223M (est)Series C2025Cumulative $151M

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$500K · 2008
Seed$2.7M · 2009
Seed extension$2.0M · 2010
Seed extension$1.3M · 2012
Seed extension$3.1M · 2012
Seed extension$3.9M · 2015
Series A$5.5M · 2017
Series A extension$11.6M · 2017
Series A extension$5.8M · 2020
Series A extension$6.0M · 2021
Series B$32.9M · 2022
Series C$42.9M · 2022
Series C extension$32.5M · 2025

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

Modeled valuation trajectory
$223.2M
Base estimate est.
$118.1M
Conservative case
$308.9M
Upside case
$216.7M
Modeled post-money

Round size and date are reported; the stage label is inferred from round size (latest is Series Ca $40M–$100M round). Valuation is modeled from stage benchmarks scaled by the health care sector profile. Directional, not a quoted figure.

Pre-Seed · modeled $15.4M · 2008-04-212008Seed · modeled $66.4M · 2009-01-23Seed · modeled $49.6M · 2010-03-03Seed · modeled $31.4M · 2012-05-31Seed · modeled $75.8M · 2012-12-14Seed · modeled $96.6M · 2015-09-15Series A · modeled $111.5M · 2017-05-16Series A · modeled $233.8M · 2017-11-08Series A · modeled $109.2M · 2020-08-31Series A · modeled $84.8M · 2021-06-29Series B · modeled $405.9M · 2022-06-03Series C · modeled $598.8M · 2022-06-03Series C · modeled $223.2M · 2025-03-052025
Model inputs · modeled:benchmark-stage-stepup-v1
15%
Dilution assumption
Implied ownership sold in the financing.
73%
Survival probability
55% low · 85% high
1.29×/yr
Annual markup
1.48×/yr upside case
1.3 yr
Elapsed time used
1.3 yr actual, capped for stale marks
health care
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
17 mo
Avg between rounds
$7.0M/yr
Capital velocity
18.2 yr
On record since
2008
First round
13
Rounds on file
How it compares to the market

Benchmarked against 5376 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) 48× above median
This company$117.7M
Sector median$2.4M
Latest round — vs other Series C rounds in sector (real $, this stage) 0.7× of median
This company$32.5M
Sector median$45.9M
Modeled value — vs sector median (estimate, all stages) 10× above median
This company$223.2M
Sector median$22.1M

Raised more than 97% of sector peers (real $). Modeled value above 89% of peers (estimate).

Niche peers — same stage & era

A tighter cohort than the sector chart above — only companies at the same stage (Series C) 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 #11 of 20.

This companyCohort peer
$100.0M$1.0B$10.0M$100.0M$1.0BCapital raised (log)RESTOR3D, Inc. · Series C Raised $239.2M · modeled $522.0M (est)ByHeart, Inc. · Series C Raised $378.4M · modeled $493.2M (est)SpyGlassPharma, Inc. · Series C Raised $134.8M · modeled $484.8M (est)VantAI Holdings, Inc. · Series C Raised $86.3M · modeled $475.3M (est)BioIntelliSense, Inc. · Series C Raised $140.0M · modeled $328.7M (est)ObjectiveHealth, Inc. · Series C Raised $68.0M · modeled $321.0M (est)VentureMed Group, Inc. · Series C Raised $59.8M · modeled $288.0M (est)Exo Imaging, Inc. · Series C Raised $169.6M · modeled $284.4M (est)InspireMD, Inc. · Series C Raised $117.2M · modeled $248.1M (est)Fonar, Llc · Series C Raised $51.2M · modeled $228.9M (est)Fourth Edge LLC · Series C Raised $119.7M · modeled $221.8M (est)MicroTransponder, Inc. (this company) Raised $117.7M · modeled $223.2M (est)MicroTransponder, Inc.
CompanyStageRaised · realValue · estvs peer med.
RESTOR3D, Inc.Series C$239.2M$522.0M2.31×
ByHeart, Inc.Series C$378.4M$493.2M2.18×
SpyGlassPharma, Inc.Series C$134.8M$484.8M2.14×
VantAI Holdings, Inc.Series C$86.3M$475.3M2.10×
BioIntelliSense, Inc.Series C$140.0M$328.7M1.45×
ObjectiveHealth, Inc.Series C$68.0M$321.0M1.42×
VentureMed Group, Inc.Series C$59.8M$288.0M1.27×
Exo Imaging, Inc.Series C$169.6M$284.4M1.26×
InspireMD, Inc.Series C$117.2M$248.1M1.10×
Fonar, LlcSeries C$51.2M$228.9M1.01×
MicroTransponder, Inc. this companySeries C$117.7M$223.2M0.99×
Fourth Edge LLCSeries C$119.7M$221.8M0.98×
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$500K2008-04-21$2.8M$15.4M85%
Seed$2.7M2009-01-23$13.4M$66.4M85%
Seed$2.0M2010-03-03$10.0M$49.6M85%
Seed$1.3M2012-05-31$6.3M$31.4M85%
Seed$3.1M2012-12-14$15.3M$75.8M85%
Seed$3.9M2015-09-15$19.5M$96.6M85%
Series A$5.5M2017-05-16$25.1M$111.5M90%
Series A$11.6M2017-11-08$52.7M$233.8M90%
Series A$5.8M2020-08-31$26.1M$109.2M90%
Series A$6.0M2021-06-29$27.3M$84.8M90%
Series B$32.9M2022-06-03$183.0M$405.9M90%
Series C$42.9M2022-06-03$286.3M$598.8M90%
Series C$32.5M2025-03-05$216.7M$223.2M90%
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$500K2008-04-21
    • First recorded raise — entered as Pre-Seed.
    • 2 investors on this round.
  2. Seed$2.7M2009-01-23
    • Raised 9 mo later, in step with the ~14 mo sector norm.
    • Round 5.4× larger than the prior — scaling up.
    • 5 investors on this round.
  3. Seed$2.0M2010-03-03
    • Raised 13 mo later, in step with the ~14 mo sector norm.
    • Round 1.3× smaller than the prior — bridge or down round.
    • 2 investors on this round.
  4. Seed$1.3M2012-05-31
    • Raised again after 27 mo — slower than the ~14 mo sector norm.
    • Round 1.6× smaller than the prior — bridge or down round.
    • 8 investors on this round.
  5. Seed$3.1M2012-12-14
    • Came back fast: 6 mo vs the ~14 mo sector norm.
    • Round 2.4× larger than the prior — scaling up.
    • 16 investors on this round.
  6. Seed$3.9M2015-09-15
    • Raised again after 33 mo — slower than the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • Switched to Rule 506(b) (was Rule 06).
    • 18 investors on this round.
  7. Series A$5.5M2017-05-16
    • Raised 20 mo later, in step with the ~14 mo sector norm.
    • Round 1.4× larger than the prior — scaling up.
    • 20 investors on this round.
  8. Series A$11.6M2017-11-08
    • Came back fast: 6 mo vs the ~14 mo sector norm.
    • Round 2.1× larger than the prior — scaling up.
    • 21 investors on this round.
  9. Series A$5.8M2020-08-31
    • Raised again after 34 mo — slower than the ~14 mo sector norm.
    • Round 2.0× smaller than the prior — bridge or down round.
    • 11 investors on this round.
  10. Series A$6.0M2021-06-29
    • Raised 10 mo later, in step with the ~14 mo sector norm.
    • Round roughly the size of the prior one.
    • 18 investors on this round.
  11. Series B$32.9M2022-06-03
    • Raised 11 mo later, in step with the ~14 mo sector norm.
    • Round 5.5× larger than the prior — scaling up.
    • 33 investors on this round.
  12. Series C$42.9M2022-06-03
    • Filed alongside the prior round (same month) — likely a tranche or amendment.
    • Round 1.3× larger than the prior — scaling up.
    • 41 investors on this round.
  13. Series C$32.5M2025-03-05
    • Raised again after 33 mo — slower than the ~14 mo sector norm.
    • Round 1.3× smaller than the prior — bridge or down round.
    • 19 investors on this round.
Intelligence
2026 ~Q3
Modeled next raise · ~17mo cadence
$32.5M
Modeled next size est.range $32.5M$52.0M
0.8×
Last step-up
$7.0M/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
Bill Bunker Harrington2022-06
Casey Bunker Tansey2022-06
Chuck Ardoin Middlekauf2008-04
Chuck Bunker Middlekauf2021-06
Chuck J. Middlekauf2015-09
Chuck Jordan Middlekauf2017-11
Chuck Michael Middlekauf2010-03
Cythia Bunker Lucchese2025-03
Dana Bunker Mead2025-03
Frank Ardoin McEachern2008-04
Frank Jordan McEachern2010-03
Frank McEachern2015-09
Frank Michael McEachern2012-05
N. Bunker Curnes2015-09
Nelson Bunker Curnes2008-04
Richard John Foust2022-06
Thomas Bunker Curnes2022-06
Thomas J. Curnes2015-09
Thomas Jordan Curnes2008-04
Thomas Jordan Curnes II2008-04
T. Jordan Curnes II2015-09
William Michael Rosellini2008-04
Registry & provenance

MicroTransponder, 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
1489993
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
Neotract IncOther Health CareSeries C$117.5M$293.0Msame sector · same stage
InspireMD, Inc.Other Health CareSeries C$117.2M$248.1Msame sector · same stage
Calyxo, Inc.Other Health CareSeries C$115.9M$204.7Msame sector · same stage
Fourth Edge LLCOther Health CareSeries C$119.7M$221.8Msame sector · same stage
TRIA Beauty, Inc.Other Health CareSeries C$155.9M$194.4Msame sector · same stage
Vavotar Life Sciences LLCOther Health CareSeries C$156.0M$228.6Msame sector · same stage
Cytrellis Biosystems, Inc.Other Health CareSeries C$82.7M$182.0Msame sector · same stage
Exo Imaging, Inc.Other Health CareSeries C$169.6M$284.4Msame 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
Micro Interventional Devices, Inc.Other Health CareSeries A$118.9M89%
MicroOptx, Inc.Other Health CareSeries A$278.6M88%
Medsender, Inc.Other Health CareSeries A$29.7M87%
Rapid Micro Biosystems, Inc.Other Health CareSeries C$1.4B86%
MicroGenDX, LLCOther Health CareSeed$40.9M86%
MicroVascular Tissues, Inc.Other Health CareSeries A$32.1M86%
Novel Microdevices, Inc.Other Health CareSeed$2.0M85%
MicroMed, LLCOther Health CarePre-Seed$1.4M85%
Frequently asked
How much funding has MicroTransponder, Inc. raised?
MicroTransponder, Inc. has raised approximately $117.7M in disclosed capital across 12 recorded financing rounds, aggregated from public filings.
What is MicroTransponder, Inc.'s estimated valuation?
Provath's modeled valuation for MicroTransponder, Inc. is approximately $223.2M (modeled range $118.1M–$308.9M). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is MicroTransponder, Inc. at?
MicroTransponder, Inc.'s latest modeled financing stage is Series C. Its most recent recorded round closed around Wed Mar 05.
What does MicroTransponder, Inc. do and where is it based?
MicroTransponder, Inc. operates in the Other Health Care sector, based in Austin.
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