About Amprius Technologies
Amprius Technologies is a publicly listed company based in Fremont (United States) founded in 2009 by Yi Cui. Silicon nanowire-based Li-Ion batteries are developed for high energy density. It operates in the Energy & Utilities and Technology sectors. Amprius Technologies has raised $55 million across 6 funding rounds from investors including Airbus, Kleiner Perkins and Leland Stanford Junior University. The company has 86 employees. Its website amprius.com draws about 63 thousand monthly visits. Amprius Technologies offers products and services including SiMaxx and SiCore. Its focus areas include High Tech, Nanotechnology, Nanoenabled Products and Energy. Its legal entity is AMPRIUS TECHNOLOGIES, INC. Its competitors include SunPower, Enovix and Starsight.io; 2 of its 3 listed competitors have raised funding.
Company details
Amprius Technologies was founded in 2009 and is headquartered in Fremont, United States. Operations focus on the energy storage sector, where silicon nanowire anodes for lithium-ion batteries are produced through a multi-step chemical vapor deposition process. These batteries are designed to deliver increased energy per unit volume and weight, varying by cell capacity and form factor. Development efforts center on advanced manufacturing tools to support scalable production.
- Headquarters Fremont, United States
- Employees 86
- Founders Yi Cui
- Stage Public
- SectorsEnergy & UtilitiesTechnology
- Email••••••••
- Phone•••• ••••
- Website amprius.com
- Social LinkedIn YouTube
- Legal Name Amprius Technologies, Inc.
- Annual Revenue$73.01 M (USD)202.11as on Dec 31, 2025
- Net Profit-$44.02 M (USD)3.03as on Dec 31, 2025
- EBITDA-$19.76 M (USD)49.79as on Dec 31, 2025
- Total Equity Funding$55M (USD)
in 6 rounds
- Latest Funding Round$50M (USD), Grant
Oct 2022
- InvestorsAirbus
& 12 more
- Employee Count86
Products & Services of Amprius Technologies
Amprius Technologies offers a comprehensive portfolio of products and services, including SiMaxx and SiCore.
Highest-performing battery with maximum energy density for high-demand uses.
High-energy density battery ensuring consistent availability for various applications.
Apps and channels of Amprius Technologies
its YouTube channel Amprius Technologies has 1.08K subscribers and 12 videos.
Videos from Amprius Technologies
The most watched videos on Amprius Technologies's YouTube channel, Amprius Technologies (1.08K subscribers). Click a video to play it here.
More on Amprius Technologies .
Funding Insights of Amprius Technologies
Amprius Technologies has successfully raised a total of $55M across 6 strategic funding rounds. The most recent funding activity was a Grant round of $50 million completed in October 2022. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $55M
- Total Rounds 6
- Last Round Grant — $50M
- First Round $3M
(Dec 2009)
- Investors Count 13
All 6 funding rounds of Amprius Technologies with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Oct 2022 | $50M | Grant | – | – | |
| Nov 2019 | Series C | – | Airbus | – | |
| Jan 2014 | $30M | Series C | – | – | |
| Sep 2011 | $6.58M | Grant | – | – | |
| Mar 2011 | $25M | Series B | – | Kleiner Perkins, IPV Capital | |
| Dec 2009 | $3M | Grant | – | – |
13 investors in total: 12 institutional and 1 angel.
Investors in Amprius Technologies
Amprius Technologies has secured backing from 13 investors, including institutional, venture fund, and angel investors. Prominent investors backing the company include Airbus, Kleiner Perkins and Leland Stanford Junior University.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Stage-agnostic investments in US ventures are made by Trident Capital. | tridentcap.com | Palo Alto, United States | ||
Venture capital firm | vpcp.com | Santa Barbara, United States | ||
Venture capital investments in China are managed by IPV Capital. | ipvcap.com | Shanghai, China | ||
| chinergy-capital.com | ||||
Early-stage technology investments are targeted by this venture capital firm. | innovationendeavors.com | Palo Alto, United States | ||
Venture capital firm investing in early-stage tech startups | 1972 | kleinerperkins.com | Menlo Park, United States | |
A leading private equity firm supporting high-growth enterprises in Asia. | saifpartners.com.cn | Chaoyang, China | ||
Commercial aircraft, helicopters, satellites, and launch vehicles are manufactured. | 1969 | airbus.com | Toulouse, France | |
Various courses and degrees across diversified streams are offered. | 1876 | stanford.edu | United States | |
Energy sources and policies are managed by the DOE. | 1977 | energy.gov |
Investor details for Amprius Technologies
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People of Amprius Technologies
32 people are tracked at Amprius Technologies (15 in leadership, 17 in team); the tracked headcount is 86.
| Name | Role | Group |
|---|---|---|
Yi Cui | Co-Founder | Leadership |
Ionel Stefan | CTO | Leadership |
Kang Sun | CEO | Leadership |
Sandra Wallach | CFO | Leadership |
Ricardo C. Rodriguez | Chief Financial Officer | Leadership |
Andrew Huie | VP, Infrastructure | Leadership |
Siyu Jiang | VP of Legal Affairs | Leadership |
Aaron Bakke | VP, Quality & Operations | Leadership |
Constantin Ionel Stefan | Chief Technology Officer | Leadership |
Carl Galewski | Director Of Equipment Technology | Leadership |
Ronnie Tao | VP, Business Development | Leadership |
Mithun Srinivasan | Director Of Operations | Leadership |
Daniel M. Seo | Director of Product and Test Engineering | Leadership |
Scott Zafiropoulo | Head Of Marketing | Leadership |
Weijie Wang | Amprius Technologies Fellow, Chief Scientist of Silicon Anode Process | Leadership |
ARUN K MENON | Staff Product Engineer | Team |
Jafar (Kian) Orangi | Process Engineering Manager | Team |
Erik Vaknine | Senior Manager, Battery Integration | Team |
Joseph Tolentino | Senior Manufacturing Engineer | Team |
Marquis Corbett Bernardo | Manufacturing Engineer | Team |
12 more people are available in the full profile.
Complete people profiles for Amprius Technologies
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IPO & Listings of Amprius Technologies
Amprius Technologies is a publicly listed company on the NYSE with ticker symbol AMPX in USA, operating in the Producer manufacturing sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date16 Sep 2022
- Listed onNYSE: AMPX
- Listed entityAmprius Technologies, Inc.
- Exchange sectorProducer manufacturing
- ISINUS03214Q1085
- Share price$8.56 (-3.49% on the day) · 2026-10-13
- Market capitalisation$1.25B
- EPS (diluted, trailing year)$-0.29
- Volume (last session)5,231,205
Financials of Amprius Technologies
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | $73.0M | -$44.0M | -$19.8M |
| 2024 | $24.2M | -$45.4M | -$39.4M |
| 2023 | $9.1M | -$36.8M | -$33.9M |
| 2022 | $4.4M | -$17.3M | -$15.9M |
| 2021 | $2.8M | -$9.9M | -$9.2M |
Detailed financial statements for Amprius Technologies
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Timeline of Amprius Technologies
4 dated milestones of Amprius Technologies across 13 years, from founding to its latest funding, stage changes and deals.
- Founded Amprius Technologies is founded.
- Funding First funding round of $3.0M.
- IPO Lists on the stock exchange (IPO).
- Funding Latest funding round, Grant, of $50.0M.
Competitors of Amprius Technologies
Amprius Technologies has 3 listed competitors in our database, 2 of them funded. They include SunPower, Enovix and Starsight.io.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| sunpower.com | 1985 | San Jose, United States | $171.73M | 1,889 | Silicon-based solar PV modules are manufactured for diverse applications. | |
| enovix.com | 2006 | Fremont, United States | $125.03M | 332 | Lithium-ion battery cells are developed with 3D silicon anode technology. | |
| starsight.io | 2022 | San Jose, United States | Online platform offering silicon-based batteries |
Detailed competitors of Amprius Technologies
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Web traffic of Amprius Technologies
The website of Amprius Technologies (amprius.com) receives about 63K visits a month.
- Monthly visits63K
▲ 42.9% vs previous month
Websites whose visitors overlap most with Amprius Technologies. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
career.zju.edu.cn | career.zju.edu.cn | 100% | – | ||
shop.theiet.org | shop.theiet.org | 94% | #770,804 | – | |
| batteryuniversity.com | 94% | View details | |||
| innovationnewsnetwork.com | 94% | #386,136 | View details | ||
| unmannedsystemstechnology.com | 94% | 199K | #240,460 | View details | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 12 similar websites and full traffic analytics for Amprius Technologies
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- 12 similar websites
- Audience overlap
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Top companies in Energy Storage Systems
3 companies that operate in the same segment as Amprius Technologies (Energy Storage Systems) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Electric buses and charging systems are manufactured for fleets. | 2004 | Burlingame, California, United States | USD 857.79 M | USD 309.36 M | 418 | |
Silicon-based solar PV modules are manufactured for diverse applications. | 1985 | San Jose, California, United States | USD 171.73 M | USD 300 M | 600 | |
Iron-air energy storage systems are developed for renewable energy projects. | 2009 | Somerville, Massachusetts, United States | USD 2 B | 902 |
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Related news about Amprius Technologies
Complete news archive for Amprius Technologies
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Frequently Asked Questions about Amprius Technologies
Amprius Technologies was founded in 2009.
Amprius Technologies is headquartered in Fremont, United States. It is registered at Fremont, California, United States.
Amprius Technologies is a funded company, having raised a total of $55M across 6 funding rounds to date. The company's 1st funding round was a Grant of $3M, raised on Dec 2009.
Amprius Technologies has 86 employees.
Annual revenue of Amprius Technologies is $73.01M as on Dec 31, 2025.
Amprius Technologies was founded in 2009 and is headquartered in Fremont, United States. Operations focus on the energy storage sector, where silicon nanowire anodes for lithium-ion batteries are produced through a multi-step chemical vapor deposition process. These batteries are designed to deliver increased energy per unit volume and weight, varying by cell capacity and form factor. Development efforts center on advanced manufacturing tools to support scalable production.
Amprius Technologies's top competitors include SunPower, Enovix and Starsight.io.
Amprius Technologies offers SiMaxx and SiCore.
Yes, Amprius Technologies is publicly traded on NYSE under the ticker symbol AMPX.
Amprius Technologies has 13 investors. Key investors include Airbus, Kleiner Perkins, Leland Stanford Junior University, DOE, and Trident Capital.
Amprius Technologies operates through Amprius Technologies, Inc..