Inertia
Inertia Enterprises is a pre-revenue fusion energy startup commercializing laser indirect-drive inertial confinement fusion to deliver 1.5 GW of baseload electricity. Founded in 2024 in Livermore, California, it is building the Thunderwall laser, mass-manufactured fuel targets, and utility-scale power plants.
- Company typePrivate
- Founded2024
- HeadquartersSan Francisco, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Inertia does
Inertia Enterprises is a pre-revenue, privately held fusion energy company founded in 2024 and headquartered in Livermore, California, that is commercializing laser indirect-drive inertial confinement fusion (ICF) to produce gigawatt-scale, baseload electricity. The company was founded by former Twilio CEO Jeff Lawson, NIF lead designer Dr. Annie Kritcher, and former SLAC Director and prior LIFE program lead Prof. Mike Dunne, and pursues a four-step commercialization path: leverage the fusion ignition physics demonstrated at the National Ignition Facility in December 2022, build the Thunderwall 10 MJ diode-pumped solid-state laser, mass-manufacture fusion fuel targets, and construct a 1.5 GW grid-scale power plant. The company has no paying customers today and does not yet sell electricity.
The company's product stack consists of three tightly coupled subsystems. The Thunderwall laser is a modular 1,000-beamline DPSSL system designed to deliver 10 MJ of energy at 10 Hz—approximately one million times the peak power of NIF at one-tenth the footprint and twenty times the efficiency, with each beamline factory-built and truck-deliverable as a shipping-container-sized module. Fusion fuel targets are 4.5 mm indirect-drive hohlraum designs with lead liners, mass-produced from commodity materials at less than $1 per target at throughput of 864,000 per day to support continuous 10 Hz operation. The 1.5 GW power plant uses a flowing liquid-lithium-based ternary alloy blanket for tritium breeding and heat exchange, a replaceable steel first-wall chamber renewed every 3–5 years, and a conventional steam turbine to generate dispatchable baseload electricity with zero carbon emissions and a tritium inventory of hundreds of grams versus multi-kilogram for tokamaks.
Inertia's forward business model is structured around long-cycle enterprise sales of dispatchable baseload electricity to utilities, grid operators, and large industrial off-takers such as data centers under long-term power purchase agreements, with the first 1.5 GW plant targeted for the 2030s and groundbreaking planned by 2030. The company also holds a licensing agreement for nearly 200 LLNL inertial fusion patents, with exclusive rights to some foundational inventions, providing both an IP moat and an inbound licensing channel. Current commercial activity is channeled through strategic collaborations with Lawrence Livermore National Laboratory (CRADA, two Strategic Partnership Projects, and patent licensing), academic partners, and government stakeholders, supported by a $450 million Series A led by Bessemer Venture Partners with participation from GV, IQT, Modern Capital, Threshold Ventures, Uncork Capital, Neo, Long Journey Ventures, and WndrCo.
Inertia firmographics
Firmographics- Name
- Inertia
- Legal name
- Inertia Enterprises
- Website
- https://inertia.com
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Inertia Enterprises is a pre-revenue fusion energy startup commercializing laser indirect-drive inertial confinement fusion to deliver 1.5 GW of baseload electricity. Founded in 2024 in Livermore, California, it is building the Thunderwall laser, mass-manufactured fuel targets, and utility-scale power plants.
- Ownership category
- akta.pro rank
Inertia industry classification
Industry- Product category
- Fusion Energy Power Generation
- NAICS
- Electric Power Generation (22111)
- SIC
- Engines & Turbines (3510), Motors & Generators (3621)
- akta.pro primary industry
- Advanced Grid Integration & Control R&D (AI Forecasting, Digital Twins, Synthetic Inertia, Virtual Power Plants) (EUAMAOAG)
- akta.pro secondary industry
- Power Electronics & Grid-Tie Equipment Manufacturing (Converters, Transformers, Switchgear) (EUAMAHAH)
Keywords
Where Inertia is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Inertia business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Infrastructure, Personnel, Supply Chain, Operations
Revenue model
- Future sale of grid-scale baseload electricity: Inertia is pre-revenue; future recurring revenue will come from selling dispatchable, baseload fusion electricity (1.5 GW per power plant, enough to power ~1 million homes) to utilities, grid operators, and large industrial off-takers under long-term power purchase agreements once plants come online in the 2030s.
- Inbound patent licensing from LLNL: Inertia holds a licensing agreement for nearly 200 LLNL inertial fusion patents (with exclusive rights to some foundational inventions); the company licenses this IP for its commercial development program, with milestone-based obligations tied to commercialization progress.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | — | Future electricity pricing to be competitive with the lowest cost forms of carbon-based energy today, and lowest cost among sources of clean energy (per company FAQ). |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Inertia product offering
Product offeringCore offering
Inertia is a pre-commercial fusion energy company developing laser indirect-drive inertial confinement fusion (ICF) power plants. Its integrated offering combines the Thunderwall 10 MJ diode-pumped solid-state laser (1,000 modular beamlines fired at 10 Hz), mass-manufactured D-T fuel targets produced in a dedicated Livermore factory at sub-$1 per target, and a 1.5 GW grid-scale fusion power plant designed to deliver baseload, dispatchable, zero-emission electricity to utilities, grid operators, and large industrial off-takers.
Product overview
Inertia's offering is a single, integrated laser inertial fusion energy (IFE) power plant system built around three tightly-coupled core technologies: the Thunderwall diode-pumped solid-state laser system, mass-manufactured indirect-drive fusion fuel targets, and a 1.5 GW grid-scale fusion power plant. Rather than a software platform with add-on modules, Inertia delivers one unified industrial-scale system in which the modular 1,000-beamline Thunderwall laser (the driver) provides 10 MJ of energy at 10 Hz to ignite fuel targets produced at industrial scale in Inertia's dedicated target factory, and the resulting fusion reactions inside the plant's target chamber generate heat that drives a conventional steam turbine to deliver 1.5 GW of baseload electricity. The full system is grounded in the inertial confinement fusion approach proven at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) and is being industrialized through a strategic partnership with LLNL that licenses nearly 200 patents and provides R&D collaboration across physics, target design, lasers, optical materials, semiconductor laser diodes, and power plant integration.
Differentiator
Problem solved
Functional benefit
Products and services
- Thunderwall Laser System A 10 megajoule (MJ) diode-pumped solid-state laser (DPSSL) consisting of approximately 1,000 modular beamlines manufactured in factories and delivered by truck. Each beamline is twenty times more efficient than the NIF system, and the full system is designed to fire 10 times per second (10 Hz) to drive indirect-drive fusion ignition. The Thunderwall is the world's most powerful laser in terms of average power, with ~1,000,000x the average power of NIF at one tenth the physical footprint.
- Mass-Manufactured Fusion Fuel Targets Indirect-drive 4.5 millimeter deuterium-tritium fusion fuel targets (hohlraums with lead liners replacing gold/depleted uranium) produced in a dedicated factory assembly line at Inertia's Livermore, CA facility, manufactured from abundant commodity materials for less than $1 per target, designed to be shot 10 times per second and produce 15x the thrust of a SpaceX Falcon Heavy rocket at liftoff. Throughput target is 864,000 targets per day for 24x7 operation.
- 1.5 GW Grid-Scale Fusion Power Plant Gigawatt utility-scale inertial fusion power plant designed to generate 1.5 gigawatts of clean, safe, baseload, dispatchable electricity — enough to power over one million homes — by firing mass-manufactured fuel targets with the Thunderwall 10 MJ laser at 10 Hz, capturing fusion heat with a flowing liquid lithium blanket (using a lithium-based ternary alloy for tritium breeding), and converting the heat via a conventional steam turbine cycle. The target chamber is constructed from conventional low-cost steel and is designed to be replaced every 3-5 years, decoupling the laser driver from the chamber.
Quantifiable outcome
- 1.5 GW baseload dispatchable electricity per plant, enough to power over 1 million homes
- +5 more outcomes
Companies that use Inertia
Customer profileIdeal customer profiles2 records
Inertia technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Inertia partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Lawrence Livermore National Laboratory (LLNL)flagship - one of the largest private-sector-led partnerships in u.s. national lab historyInertia and LLNL signed two Strategic Partnership Projects (SPPs), a Cooperative Research and Development Agreement (CRADA), and a licensing agreement for nearly 200 LLNL patents covering inertial fusion technology, including exclusive rights to some foundational inventions. Covers R&D and prototyping of advanced optical materials, semiconductor laser diodes, target physics design, and rapid target manufacturing. Enabled by the 2022 CHIPS and Science Act's Outside Business Agreement.
Scale indicators8 records
Recent moves5 records
Expansion highlights5 records
Inertia competitors and assessment
Company assessmentDirect peers
- General Fusion: Canadian magnetized target fusion company using mechanically-compressed plasma liners, pursuing a demonstration plant in the UK. Long-tenured private fusion peer competing for utility offtake agreements and government fusion program funding.
- Tokamak Energy: UK-based spherical tokamak fusion developer using HTS magnets, pursuing grid-scale commercial fusion in the early 2030s. Closest non-US peer in scale and timeline; competing in the same global commercial fusion race.
- Marvel Fusion: German laser fusion startup pursuing proton-driven inertial confinement fusion with short-pulse lasers. Competes with Inertia in the laser inertial fusion energy category for European and US partnerships and capital.
- Helion Energy: Washington-based fusion company pursuing pulsed magnetic fusion with D-He3 fuel and direct electricity generation. Frequently cited alongside Inertia as one of the largest-funded private fusion ventures; competing for utility PPAs and government attention.
- TAE Technologies: California-based fusion company developing field-reversed configuration (FRC) plasmas with neutral-beam heating. Long-tenured private fusion peer, pursuing commercial p-B11 fuel cycle and baseload electricity generation — directly comparable long-horizon commercialization profile.
- Xcimer Energy: US-based inertial fusion startup pursuing laser-driven ICF with a krypton fluoride excimer laser architecture. Competes with Inertia for the inertial fusion talent pool, government partnerships, and laser-driven fusion plant economics.
- Commonwealth Fusion Systems: MIT spinoff developing a compact tokamak fusion plant using HTS magnets. Closest comparable in scale and ambition — both pursue utility-scale commercial fusion in the early 2030s with >$450M+ venture rounds; CFS uses magnetic confinement while Inertia uses inertial confinement, but they compete for the same baseload electricity off-takers and government support.
- Focused Energy: German-American laser fusion company pursuing laser direct-drive inertial confinement fusion, also based on NIF-derived physics. Most direct technology comparable to Inertia — same inertial confinement approach, similar target-and-laser architecture, similar utility-scale ambitions.
Emerging players
- Zap Energy: US-based sheared-flow Z-pinch fusion developer pursuing a simpler, lower-cost path to fusion without lasers or expensive magnets. Competes with Inertia for venture funding and utility off-taker interest in the broader private-fusion landscape.
- Pacific Fusion: US pulsed-magnetic inertial fusion startup founded by former Sandia, LLNL, and Helion alumni pursuing pulsed magnetic fusion. Compares to Inertia as a deep-tech inertial/pulsed fusion entrant with similar long-horizon commercialization and government-lab pedigree.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Inertia social profiles
Digital presenceInertia financial estimates
Financial estimateRevenue estimate
Valuation estimate
Inertia leadership team
Management profileNumber of profiles
Profiles13 records
Inertia funding detail
Funding detailFunding overview
Funding rounds1 record
Investors10 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Inertia M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Inertia
What does Inertia do?
Inertia is a pre-commercial fusion energy company developing laser indirect-drive inertial confinement fusion (ICF) power plants. Its integrated offering combines the Thunderwall 10 MJ diode-pumped solid-state laser (1,000 modular beamlines fired at 10 Hz), mass-manufactured D-T fuel targets produced in a dedicated Livermore factory at sub-$1 per target, and a 1.5 GW grid-scale fusion power plant designed to deliver baseload, dispatchable, zero-emission electricity to utilities, grid operators, and large industrial off-takers.
Is Inertia a public or private company?
Inertia is a private company. It is classified as venture growth investor backed and is currently operating.
When was Inertia founded?
Inertia was founded in 2024. It employs 11 to 50 people.
Where is Inertia based?
Inertia is headquartered in San Francisco, United States, in the North America region.
How does Inertia make money?
Two revenue lines are on record. Future sale of grid-scale baseload electricity is the primary driver. The others are inbound patent licensing from LLNL.
Who are Inertia's main competitors?
Direct peers on record are General Fusion, Tokamak Energy, Marvel Fusion, Helion Energy, TAE Technologies, Xcimer Energy, Commonwealth Fusion Systems and Focused Energy. Emerging players are Zap Energy and Pacific Fusion.
Does Inertia have an API?
No public API is recorded for Inertia.
What industry is Inertia in?
Inertia's product category is Fusion Energy Power Generation. Its primary akta.pro industry code is EUAMAOAG, Advanced Grid Integration & Control R&D (AI Forecasting, Digital Twins, Synthetic Inertia, Virtual Power Plants), with a secondary code of EUAMAHAH, Power Electronics & Grid-Tie Equipment Manufacturing (Converters, Transformers, Switchgear). Its NAICS code is 22111 and its SIC code is 3510.