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Climate and energy

Zephyr Fusion

Zephyr Fusion is building the first in-orbit fusion power source: a megawatt-class reactor enabling large-scale industry in space, at a fraction of the cost of equivalent solar. Founded by former physicists from Lawrence Livermore and Oak Ridge National Laboratories, Zephyr leverages decades of fusion research to deliver a compact magnetic confinement system designed to take advantage of the space environment.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #96

Zephyr Fusion is building the first in-orbit fusion power source: a megawatt-class reactor enabling large-scale industry in space, at a fraction of the cost of equivalent solar. Founded by former physicists from Lawrence Livermore and Oak Ridge National Laboratories, Zephyr leverages decades of fusion research to deliver a compact magnetic confinement system designed to take advantage of the space environment.

source
generated read
High Signal interpretation

Zephyr Fusion is classified as Climate and energy from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
large-scale industryZephyr Fusioncompact magnetic confinement systemmegawatt-class reactor
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Zephyr Fusion

Climate and energy · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Sunfolding

match 67

Sunfolding was founded in 2012 with headquarters in San Francisco, CA. Sunfolding designs, manufactures and sells balance of system products that offer cost and performance breakthroughs to stakeholders across the solar industry. Currently, Sunfolding’s main product offering is an advanced solar tracker, Sunfolding T29™ Horizontal Single Axis Tracker. Sunfolding’s executive team has collectively built and sold GWs of solar globally, successfully launching new solar products and technologies at l

shared extracted concept terms: industry; shared product terms: found, design, system, cost; shared product theme: climate and energy; same category: Climate and energy; shared affiliation: Y Combinator

Ionworks

match 64

Every battery company spends tens of millions of dollars a year on experiments. Simulations that replace experiments reduce these costs but are currently underutilized in industry because they are hard to create and run. We make simulations accessible to every engineer, by helping them to create models from their own data, then run large scale simulations in the cloud to explore the full design space.

shared extracted concept terms: industry; shared product terms: cost, industry, large, scale; shared product theme: climate and energy; shared affiliation: Y Combinator

STACKEASE

match 62

StackEase specializes in the development of cutting-edge optimization and trading technologies for large-scale battery storage systems.

shared extracted concept terms: large, scale, system; shared product terms: large, scale, system; shared product theme: climate and energy; same category: Climate and energy

PickTrace

match 53

PickTrace is a fast growing software company that provides workforce and harvest management solutions for large-scale farms. Founded by brothers Austin and Harrison Steed, PickTrace is building the farm management system of the future. PickTrace builds powerful software products that help agriculture companies thrive. Our workforce and harvest management software helps growers gain insight into their operations and improve their operational efficiency. Everything that we do is based on the convi

shared extracted concept terms: large, scale; shared product terms: large, scale, found, system; shared affiliation: Y Combinator

1849 bio

match 51

1849 bio designs microbes enabling cheap metal extraction allowing miners to unlock value from low quality copper and gold ores. Surprisingly, the mining industry is one of the largest scale users of biotech in the world with biomining processes accounting for ~1% of global copper production. Biomining is ultra-low cost, running around ~$1/ton of ore vs ~$7/ton for conventional processes. Unfortunately, while biomining is cheap, it can’t be applied to over 80% of copper ores, leaving vast resour

shared extracted concept terms: industry; shared product terms: design, enabl, industry, scale; shared affiliation: Y Combinator

In Orbit Aerospace

match 32

Enabling mass manufacturing and research in space.

shared product terms: enabl, research, space, orbit