Ambiq Micro, Inc. has raised $405M over 27 rounds; too few niche peers to rank its valuation yet.
Raised $405M across 27 disclosed rounds, last modeled as Series D+ (a $100M–$400M round).
Valued on the climate/enviro profile — its sector's growth and survival benchmarks differ from the market default, so the same raise is worth more or less here.
Last raise 23 mo ago; this sector typically re-raises about every 9 months.
Latest round was 8.0× smaller than the prior — a bridge or down round.
Synthesized from the figures below est. — every claim rests on a number shown on this page. Valuation uses the climate/enviro sector profile.
Analyst read est. — computed against this company's niche peers in the same era. Inputs shown; not a quoted figure.
At-risk
Last raise 23 mo ago; this sector typically re-raises about every 9 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
Ambiq Micro, 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
15.7 yr record
Peak capital year was 2020 with $188.1M across 3 filings.
Market position
ahead of 92% of Climate / Cleantech peers
Capital scale is ahead of 92% of Climate / Cleantech peers; modeled value is above 48% 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
Some evidence
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Row-level filing totals differ from canonical totals, so amendment/superseded filtering should be checked.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
No clearly named CEO/founder/principal role in the public records surfaced here.
Capital program peaked in 2020: $188.1M across 3 filings.
Largest single filing was $127.3M on 2020-10-16.
Filing rows sum to $614.8M, while canonical raised total is $405.5M; likely amendments/superseded rows are mixed into the detail view.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 Climate / Cleantech
Ambiq Micro, Inc. is one of 207 Climate / Cleantech companies tracked from AUSTIN. By capital raised it ranks among the largest (ahead of 92% of sector peers), and mid-pack by modeled valuation est..
Ranking is computed against this company's own sector cohort — reported capital is fact; valuation tiers are modeled.
AI analyst read est. — model-extracted from this company's public description, not a verified fact. 30%
operates a technology-led product inferred from public copy
Grounded in: “You are a venture analyst”
Ambiq – Ambient Intelligence. Ambiq is the industry leader in ultra-low power semiconductor platforms and solutions for battery-powered edge AI devices.
Ambiq – Ambient Intelligence. Ambiq is the industry leader in ultra-low power semiconductor platforms and solutions for battery-powered edge AI devices. Ambiq makes unprecedented energy-efficient SoCs and ultra-low power platform solutions that enable edge AI on billions of battery-powered devices. Our mission is to put intelligence everywhere by delivering the lowest-power semiconductor solutions on the planet. With the SPOT® platform and the Apollo and Atomiq SoC family, Ambiq empowers innovators to build smarter, longer-lasting wearables, IoT, smart home, healthcare, and industrial devices. Edge artificial intelligence (AI) refers to the deployment of AI models and algorithms directly on power-constrained local devices at the edge, rather than in a centralized cloud environment. While cloud-based AI platforms like ChatGPT have captured the spotlight since 2022, a quieter but equally transformative revolution has been unfolding —Edge AI. As devices become more advanced and versatile, AI must evolve beyond cloud-based implementations to thrive in environments where computing and energy resources are limited. 1 st Real Time Clock (RTC) product launched 1 st SPOT microcontroller (MC
As reported in public records reported — not modeled.
US
Jurisdiction
Rule 506(b)
Reg D exemption
1
Investors (latest)
2024-07-29
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
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$149K · 2010
Seed$1.2M · 2010
Seed extension$694K · 2012
Seed extension$1.1M · 2012
Seed extension$3.7M · 2012
Seed extension$246K · 2013
Seed extension$3.2M · 2013
Series A$10.0M · 2013
Series B$15.6M · 2014
Series B extension$672K · 2015
Series B extension$9.5M · 2016
Series B extension$2.5M · 2016
Series B extension$23.5M · 2017
Series B extension$34.1M · 2017
Series B extension$34.1M · 2017
Series B extension$33.6M · 2017
Series B extension$34.1M · 2017
Series B extension$29.1M · 2018
Bridge · Series B-stage$11.4M · 2018smaller follow-on
Series B extension$1.0M · 2019
Series B extension$4.1M · 2019
Series B extension$12.7M · 2019
Bridge · Series B-stage$8.1M · 2019smaller follow-on
Series B extension$5.1M · 2020
Series D+$127.3M · 2020no Series C on file
Bridge · Series D+-stage$55.8M · 2020smaller follow-on
Series D+ extension$4.2M · 2021
Series D+ extension$44.8M · 2022
Series D+ extension$111K · 2022
Series D+ extension$83.2M · 2023
Bridge · Series D+-stage$8.8M · 2023smaller follow-on
Series D+ extension$5.6M · 2024
Series D+ extension$3.0M · 2024
Series D+ extension$2.4M · 2024
Series D+ extension$300K · 2024
Stages are modeled from round size (public records carry no series label). Ladder is contiguous — every modeled rung has a record.
Modeled valuation trajectory
$3.0M
Base estimate est.
$1.6M
Conservative case
$4.2M
Upside case
$2.5M
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 climate/enviro sector profile. Directional, not a quoted figure.
Model inputs · modeled:benchmark-stage-stepup-v1
12%
Dilution assumption
Implied ownership sold in the financing.
78%
Survival probability
63% low · 87% high
1.25×/yr
Annual markup
1.40×/yr upside case
1.9 yr
Elapsed time used
1.9 yr actual, capped for stale marks
climate/enviro
Sector profile
Adjusts growth and survival by industry.
Financing rhythm
5 mo
Avg between rounds
$29.4M/yr
Capital velocity
15.7 yr
On record since
2010
First round
35
Rounds on file
How it compares to the market
Benchmarked against 207 companies in Climate / Cleantech. 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)▲ 50× above median
This company$405.5M
Sector median$8.1M
Latest round — vs other Series D+ rounds in sector (real $, this stage)▼ 0.0× of median
This company$300K
Sector median$126.1M
Modeled value — vs sector median (estimate, all stages)▼ 0.1× of median
This company$3.0M
Sector median$59.7M
Raised more than 92% of sector peers (real $). Modeled value above 48% 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 valueest. (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.
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.
Stage
Amount · real
Announced
Post-money · est
Value · est
Conf.
Pre-Seed
$149K
2010-10-19
$828K
$5.0M
85%
Seed
$1.2M
2010-10-19
$5.8M
$31.3M
85%
Seed
$694K
2012-02-15
$3.5M
$18.8M
85%
Seed
$1.1M
2012-07-11
$5.5M
$29.8M
85%
Seed
$3.7M
2012-10-19
$18.3M
$99.4M
85%
Seed
$246K
2013-06-03
$1.2M
$6.7M
85%
Seed
$3.2M
2013-06-17
$16.1M
$87.5M
85%
Series A
$10.0M
2013-08-08
$45.6M
$221.9M
85%
Series B
$15.6M
2014-11-07
$86.7M
$378.4M
85%
Series B
$672K
2015-05-07
$3.7M
$16.3M
85%
Series B
$9.5M
2016-06-07
$52.7M
$230.3M
85%
Series B
$2.5M
2016-12-09
$13.7M
$59.6M
90%
Series B
$23.5M
2017-06-01
$130.5M
$569.7M
90%
Series B
$34.1M
2017-06-01
$189.2M
$826.2M
90%
Series B
$34.1M
2017-06-01
$189.2M
$826.2M
90%
Series B
$33.6M
2017-06-01
$186.4M
$814.1M
90%
Series B
$34.1M
2017-06-01
$189.2M
$826.2M
90%
Series B
$29.1M
2018-05-29
$161.4M
$704.7M
90%
Series A
$11.4M
2018-05-29
$52.0M
$252.8M
90%
Series B
$1.0M
2019-01-16
$5.6M
$24.5M
90%
Series B
$4.1M
2019-02-21
$22.9M
$99.9M
90%
Series B
$12.7M
2019-05-23
$70.6M
$308.4M
90%
Series A
$8.1M
2019-05-23
$36.9M
$179.3M
90%
Series B
$5.1M
2020-03-19
$28.1M
$122.5M
90%
Series D+
$127.3M
2020-10-16
$1.1B
$3.0B
90%
Series C
$55.8M
2020-10-16
$372.0M
$1.3B
90%
Series D+
$4.2M
2021-03-03
$35.2M
$91.5M
90%
Series D+
$44.8M
2022-02-08
$373.4M
$785.6M
90%
Series D+
$111K
2022-10-19
$925K
$1.7M
90%
Series D+
$83.2M
2023-08-31
$693.5M
$1.0B
90%
Series A
$8.8M
2023-08-31
$39.9M
$58.8M
90%
Series D+
$5.6M
2024-05-13
$46.6M
$58.9M
90%
Series D+
$3.0M
2024-06-01
$25.1M
$31.4M
90%
Series D+
$2.4M
2024-07-21
$20.1M
$24.3M
90%
Series D+
$300K
2024-07-29
$2.5M
$3.0M
90%
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.
Pre-Seed$149K2010-10-19
First recorded raise — entered as Pre-Seed.
1 investor on this round.
Seed$1.2M2010-10-19
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 7.7× larger than the prior — scaling up.
20 investors on this round.
Seed$694K2012-02-15
Raised again after 16 mo — slower than the ~9 mo sector norm.
Round 1.7× smaller than the prior — bridge or down round.
19 investors on this round.
Seed$1.1M2012-07-11
Came back fast: 5 mo vs the ~9 mo sector norm.
Round 1.6× larger than the prior — scaling up.
22 investors on this round.
Seed$3.7M2012-10-19
Came back fast: 3 mo vs the ~9 mo sector norm.
Round 3.3× larger than the prior — scaling up.
25 investors on this round.
Seed$246K2013-06-03
Raised 7 mo later, in step with the ~9 mo sector norm.
Round 14.9× smaller than the prior — bridge or down round.
Switched to Rule 506(b) (was Rule 06).
2 investors on this round.
Seed$3.2M2013-06-17
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 13.1× larger than the prior — scaling up.
Switched to Rule 06 (was Rule 506(b)).
29 investors on this round.
Series A$10.0M2013-08-08
Came back fast: 2 mo vs the ~9 mo sector norm.
Round 3.1× larger than the prior — scaling up.
30 investors on this round.
Series B$15.6M2014-11-07
Raised again after 15 mo — slower than the ~9 mo sector norm.
Round 1.6× larger than the prior — scaling up.
Switched to Rule 506(b) (was Rule 06).
27 investors on this round.
Series B$672K2015-05-07
Raised 6 mo later, in step with the ~9 mo sector norm.
Round 23.2× smaller than the prior — bridge or down round.
2 investors on this round.
Series B$9.5M2016-06-07
Raised 13 mo later, in step with the ~9 mo sector norm.
Round 14.1× larger than the prior — scaling up.
35 investors on this round.
Series B$2.5M2016-12-09
Raised 6 mo later, in step with the ~9 mo sector norm.
Round 3.9× smaller than the prior — bridge or down round.
16 investors on this round.
Series B$23.5M2017-06-01
Raised 6 mo later, in step with the ~9 mo sector norm.
Round 9.6× larger than the prior — scaling up.
33 investors on this round.
Series B$34.1M2017-06-01
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 1.5× larger than the prior — scaling up.
43 investors on this round.
Series B$34.1M2017-06-01
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round roughly the size of the prior one.
43 investors on this round.
Series B$33.6M2017-06-01
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round roughly the size of the prior one.
42 investors on this round.
Series B$34.1M2017-06-01
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round roughly the size of the prior one.
43 investors on this round.
Series B$29.1M2018-05-29
Raised 12 mo later, in step with the ~9 mo sector norm.
Round roughly the size of the prior one.
29 investors on this round.
Series A$11.4M2018-05-29
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 2.5× smaller than the prior — bridge or down round.
23 investors on this round.
Series B$1.0M2019-01-16
Raised 8 mo later, in step with the ~9 mo sector norm.
Round 11.3× smaller than the prior — bridge or down round.
1 investor on this round.
Series B$4.1M2019-02-21
Came back fast: 1 mo vs the ~9 mo sector norm.
Round 4.1× larger than the prior — scaling up.
3 investors on this round.
Series B$12.7M2019-05-23
Came back fast: 3 mo vs the ~9 mo sector norm.
Round 3.1× larger than the prior — scaling up.
33 investors on this round.
Series A$8.1M2019-05-23
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 1.6× smaller than the prior — bridge or down round.
31 investors on this round.
Series B$5.1M2020-03-19
Raised 10 mo later, in step with the ~9 mo sector norm.
Round 1.6× smaller than the prior — bridge or down round.
12 investors on this round.
Series D+$127.3M2020-10-16
Raised 7 mo later, in step with the ~9 mo sector norm.
Round 25.2× larger than the prior — scaling up.
64 investors on this round.
Series C$55.8M2020-10-16
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 2.3× smaller than the prior — bridge or down round.
50 investors on this round.
Series D+$4.2M2021-03-03
Came back fast: 5 mo vs the ~9 mo sector norm.
Round 13.2× smaller than the prior — bridge or down round.
1 investor on this round.
Series D+$44.8M2022-02-08
Raised 11 mo later, in step with the ~9 mo sector norm.
Round 10.6× larger than the prior — scaling up.
27 investors on this round.
Series D+$111K2022-10-19
Raised 8 mo later, in step with the ~9 mo sector norm.
Round 403.7× smaller than the prior — bridge or down round.
1 investor on this round.
Series D+$83.2M2023-08-31
Raised 10 mo later, in step with the ~9 mo sector norm.
Round 749.7× larger than the prior — scaling up.
41 investors on this round.
Series A$8.8M2023-08-31
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 9.5× smaller than the prior — bridge or down round.
15 investors on this round.
Series D+$5.6M2024-05-13
Raised 8 mo later, in step with the ~9 mo sector norm.
Round 1.6× smaller than the prior — bridge or down round.
5 investors on this round.
Series D+$3.0M2024-06-01
Came back fast: 1 mo vs the ~9 mo sector norm.
Round 1.9× smaller than the prior — bridge or down round.
1 investor on this round.
Series D+$2.4M2024-07-21
Came back fast: 2 mo vs the ~9 mo sector norm.
Round roughly the size of the prior one.
1 investor on this round.
Series D+$300K2024-07-29
Filed alongside the prior round (same month) — likely a tranche or amendment.
Round 8.0× smaller than the prior — bridge or down round.
1 investor on this round.
Intelligence
2024 ~Q4
Modeled next raise · ~5mo cadence
$300K
Modeled next size est.range $300K–$480K
0.1×
Last step-up
$29.4M/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.
Ambiq Micro, 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
1500412
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.
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.
Ambiq Micro, Inc. has raised approximately $405.5M in disclosed capital across 27 recorded financing rounds, aggregated from public filings.
What is Ambiq Micro, Inc.'s estimated valuation?
Provath's modeled valuation for Ambiq Micro, Inc. is approximately $3.0M (modeled range $1.6M–$4.2M). This is an algorithmic estimate derived from round sizes and same-niche peers — not a quoted or reported figure.
What funding stage is Ambiq Micro, Inc. at?
Ambiq Micro, Inc.'s latest modeled financing stage is Series D+. Its most recent recorded round closed around Mon Jul 29.
What does Ambiq Micro, Inc. do and where is it based?
Ambiq Micro, Inc. operates in the Climate / Cleantech sector, based in AUSTIN. Ambiq – Ambient Intelligence. Ambiq is the industry leader in ultra-low power semiconductor platforms and solutions for battery-powered edge AI devices.
Explore related
See where Ambiq Micro, Inc. sits in the wider market — its sector, location and stage cohorts, each with their own leaderboards and capital-flow timelines.
If you work at Ambiq Micro, Inc., claim this profile or suggest a correction. We aggregate from public filings, so help us keep your description, website and links accurate.