Launch, satellites, and in-orbit infrastructure — the private space economy ranked by latest disclosed valuation.
| # | Company | Valuation | Secondary $/sh | vs Last Round | Last Round | IPO Status |
|---|---|---|---|---|---|---|
| 1 | Blue Origin Kent, USA |
$130Bmark 2026-07 | $165.42as of 2026-06-27 | no round comparison | Private (Bezos-funded) · 2026-07 · $10B | private |
| 2 | Sierra Space Louisville, CO |
$8.0Bmark 2026-Q1 | $28.2920d ago | -7.3% | Series C · 2026-03-01 · $550M | no imminent plans |
| 3 | K2 Space Torrance, CA |
$6.8Bmark 2026-Q3 | $104.05as of 2026-06-27 | +35.3% | Series D · 2026-07-01 · $500M | private |
| 4 | CHAOS Industries El Segundo, CA |
$4.5Bmark 2025-11 | no secondary mark | — | Series D · 2025-11-01 · $275M | no imminent plans |
| 5 | Skydio San Mateo, CA |
$4.4Bmark 2026-04 | $10.02as of 2026-06-27 | +16.1% | Series F · 2026-04-01 · $170M | no imminent plans |
| 6 | Relativity Space Long Beach, CA |
$4.2Bmark 2025-Q1 | $10.05as of 2026-06-27 | -55.7% | Series F · 2025-03-01 · $1.7B | no imminent plans |
| 7 | Stoke Space Kent, Washington |
$3.4Bmark 2026-Q1 | $60.51as of 2026-06-27 | +21.2% | Series D-2 · 2026-02-09 · $350M | Private |
| 8 | Park Controls & Communications Bengaluru, India |
$2.9Bmark 2026-01 | no secondary mark | — | undisclosed | private |
| 9 | ICEYE Espoo, Finland |
$2.5Bmark 2025-Q4 | $51.45as of 2026-06-27 | no round comparison | Series E · 2025-12-01 · $158M | private |
| 10 | Apex Space Los Angeles, CA |
$2.3Bmark 2026-Q2 | $12.89as of 2026-06-27 | -35.7% | Series E · 2026-06-05 · $200M | private |
| 11 | True Anomaly Centennial, CO |
$2.2Bmark 2026-Q2 | $12.73as of 2026-06-27 | -20.8% | Series D · 2026-04-28 · $650M | no imminent plans |
| 12 | Starcloud Redmond, WA |
$2.2Bmark 2026-04 | $57.02as of 2026-06-27 | no round comparison | Series A · 2026-03-30 · $170M | private |
| 13 | Axiom Space Houston, Texas, USA |
$2.0Bmark 2025-Q1 | $107.53as of 2026-06-27 | no round comparison | Venture · 2025-03-01 · $100M | rumored |
| 14 | Cowboy Space | $2.0Bmark 2026-05 | no secondary mark | — | Series B · 2026-05-01 · $305M | private |
| 15 | Astranis San Francisco, CA |
$1.9Bmark 2024-Q3 | $22.06as of 2026-06-27 | no round comparison | Series D · 2024-09-01 · $200M | no imminent plans |
| 16 | Mach Industries Huntington Beach, CA |
$1.8Bmark 2026-06 | $2.95as of 2026-06-27 | -18.5% | Series C · 2026-06-01 | private |
| 17 | Destinus Lausanne, Switzerland |
$1.5Bmark 2025-Q2 | no secondary mark | — | Debt facility (Commerzbank) · 2025-12-15 · $55M | rumored |
| 18 | Muon Space Mountain View, CA |
$1.5Bmark 2026-08-20 | no secondary mark | — | Series C · 2026-08-20 · $250M | private |
| 19 | Impulse Space El Segundo, CA |
$1.2Bmark 2025-Q3 | $74.95as of 2026-06-27 | no round comparison | Series C · 2025-06-11 · $295M | no imminent plans |
| 20 | Varda Space Industries El Segundo, CA |
$1.0Bmark 2025-Q3 | $26.46as of 2026-06-27 | +29.0% | Series C · 2025-07-15 · $187M | no imminent plans |
| 21 | Apex Los Angeles, CA |
$1.0Bmark 2025-Q3 | no secondary mark | — | Series D · 2025-09-12 · $200M | private |
| 22 | Apex Los Angeles, CA |
$1.0Bmark 2025-Q1 | $2.00as of 2026-06-27 | +100.0% | Series C · 2025-04-01 · $200M | no imminent plans |
| 23 | Hermeus Atlanta, GA |
$1.0Bmark 2026-04 | $15.00as of 2026-06-27 | -35.8% | Series C · 2026-04-01 · $100M | no imminent plans |
| 24 | Radia Boulder, CO |
$1.0Bmark 2022-Q2 | no secondary mark | — | Series B2 · 2022-05-13 · $51M | private |
| 25 | Atmosphere Ramonville, France |
$1.0Bmark 2023-Q1 | no secondary mark | — | Series D · 2023-02-07 · $65M | private |
| 26 | SITECH DEV Beijing, China |
$1.0Bmark 2019-Q2 | no secondary mark | — | Series B · 2019-05-15 | private |
| 27 | TTTech Vienna, Austria |
$1.0Bmark 2022-Q1 | no secondary mark | — | Corporate · 2022-02-02 · $285M | private |
| 28 | Loft Orbital San Francisco, California |
$954Mmark 2026-Q1 | $17.77as of 2026-06-27 | -28.3% | Series C · 2025-01-13 · $170M | Private |
| 29 | Xaircraft Guangzhou, China |
$878Mmark 2020-Q4 | no secondary mark | — | Series C3 · 2020-11-19 · $41M | private |
| 30 | Rescale San Francisco, CA |
$869Mmark 2025-Q3 | $13.28as of 2026-06-27 | -25.1% | Series D · 2025-04-07 · $115M | private |
| 31 | ZeroAvia Everett, WA |
$684Mmark 2024-Q3 | $8.45as of 2026-06-27 | no round comparison | Series C · 2024-09-12 · $150M | private |
| 32 | ExPace Technology Wuhan, China |
$635Mmark 2017-Q4 | no secondary mark | — | Series A · 2017-12-19 · $182M | private |
| 33 | X-Bow Albuquerque, NM |
$608Mmark 2025-Q2 | $1.00as of 2026-06-27 | -75.5% | Series B · 2025-05-12 · $105M | private |
| 34 | Shift5 Rosslyn, VA |
$590Mmark 2025-Q3 | $0.92as of 2026-06-27 | -6.1% | Series C · 2025-09-03 · $75M | private |
| 35 | Picogrid El Segundo, CA |
$500Mmark 2025-Q2 | no secondary mark | — | Series B · 2025-05-01 · $50M | no imminent plans |
| 36 | GUILD New York, NY |
undisclosed | no secondary mark | — | Seed (Y Combinator S26 standard deal) · 2026-06-01 · $1M | private |
| 37 | Boom Supersonic Denver, CO |
undisclosed | $41.00as of 2026-06-27 | no round comparison | Series D · 2024-12-16 · $100M | private |
| 38 | KrattWorks Tallinn, Estonia |
undisclosed | no secondary mark | — | Growth equity · 2025-01-01 | private |
| 39 | Cartesia San Francisco, CA |
undisclosed | $18.67as of 2026-06-27 | 0.0% | Series B · 2025-11-01 · $100M | private |
| 40 | Threod Systems Tartu, Estonia |
undisclosed | no secondary mark | — | Strategic / acquisition exploration · 2025-07-01 | private |
| 41 | Venus Aerospace | undisclosed | $3.00as of 2026-06-27 | no round comparison | Form D filing · 2026-05-04 · $63M | private |
| 42 | Vast Long Beach, CA |
undisclosed | no secondary mark | — | Series A + Debt · 2026-03 · $500M | private |
| 43 | Revel | undisclosed | no secondary mark | — | undisclosed | private |
| 44 | Ursa Major Berthoud, CO |
undisclosed | no secondary mark | — | undisclosed | private |
| 45 | Albedo Broomfield, CO |
undisclosed | no secondary mark | — | undisclosed | private |
| 46 | Gravitics Marysville, WA |
undisclosed | no secondary mark | — | undisclosed | private |
| 47 | Turion Space Irvine, CA |
undisclosed | no secondary mark | — | undisclosed | private |
| 48 | Portal Space Systems Bothell, WA |
undisclosed | no secondary mark | — | undisclosed | private |
| 49 | REGENT Craft North Kingstown, RI |
undisclosed | no secondary mark | — | undisclosed | private |
| 50 | JetZero Long Beach, CA |
undisclosed | $47.28as of 2026-06-27 | no round comparison | undisclosed | private |
Ranked by tracked Space portfolio companies — counted from disclosed round participation and each firm's notable holdings, so a firm only appears here if it actually holds companies in this ranking. Full capital-side ranking: Top Private Market Investors by AUM.
By latest disclosed valuation, the largest tracked private Space companies are Blue Origin ($130B), Sierra Space ($8.0B), K2 Space ($6.8B), CHAOS Industries ($4.5B), Skydio ($4.4B). The full ranking of 52 companies refreshes daily at quantlogix.ai/private/space.
Ranked by tracked Space portfolio companies, the most active investors are Y Combinator (6 tracked), 8VC (6 tracked), Space Capital (5 tracked), Andreessen Horowitz (4 tracked), Founders Fund (4 tracked). Full ranking: Top Private Market Investors by AUM.
Valuations are each company's latest disclosed mark, dated per row; secondary share prices refresh daily (26 of 52 tracked companies currently carry one). Rows without a usable number say so rather than showing zero.
Methodology. Rankings are by each company's latest disclosed valuation (roster + weekly enrichment); the "mark" chip shows when that valuation was set. Secondary share prices are point estimates from secondary-market activity — one implied price per name, no bid/ask — refreshed daily (marks overlay as of 2026-09-04), each carrying its own date. "vs Last Round" compares the secondary price to the company's own last primary round per-share price; rows without a usable comparison say so rather than showing zero. Companies marked acquired, defunct, or public are excluded. Educational data, not investment advice.