Week in Space Data, every Friday.
Investor portfolio, from our funding record
Firm assets $106.5B (Form ADV regulatory AUM, 2025-12, SEC Form ADV (filed Mar 2026)): all strategies, not money invested in space.
Recorded in our rows as: a16z; a16z (Andreessen Horowitz); a16z Speedrun; Andreessen Horowitz (scout fund); Andreessen Horowitz Growth Fund.
Counted rounds
14
Led
10
4 as participant
Companies
7
Disclosed round value
$1.05B
13 of 14 rounds disclosed; whole rounds, not this investor's share
First deal
2018-03-01
Astranis
Latest deal
2026-08-04
Endeavor Optical Networks
Andreessen Horowitz appears on 14 counted private space funding rounds in our records, into 7 companies: recorded as lead on 10 and as a participant on 4.
The earliest is Astranis on 1 March 2018; the latest is Endeavor Optical Networks on 4 August 2026.
13 of the 14 rounds disclosed a size, together $1.05B. That is the size of the rounds Andreessen Horowitz took part in, not the amount Andreessen Horowitz invested: we hold no per-investor allocations and do not estimate them.
The investor most often on the same counted rounds as Andreessen Horowitz is Alpine Space Ventures, on 2 rounds.
12 other recorded transactions naming Andreessen Horowitz are not counted in this portfolio; each is listed separately with the class that keeps it out (companies not classed as space: 12).
Private funding rounds into space companies that name Andreessen Horowitz as lead or participant, newest first, each with its source. Round size is the whole round; a blank size was never disclosed and is not estimated.
| Date | Company | Stage | Role | Round size | Source |
|---|---|---|---|---|---|
| Endeavor Optical Networks | Seed | Lead | $10.8M | TechCrunch (opens the source for this round) | |
| OrbitalRecorded as Pre-Seed | Pre-seed | LeadAs recorded: a16z Speedrun | $5.0M | Payload Space (opens the source for this round) | |
| AstranisRecorded as Series E | Series D and later | Participant | $300M | Payload (opens the source for this round) | |
| Northwood Space | Series B | LeadAs recorded: a16z | $100M | Payload (opens the source for this round) | |
| Apex | Series C | ParticipantAs recorded: a16z | $200M | Payload (opens the source for this round) | |
| Northwood Space | Series A | LeadAs recorded: a16z | $30.0M | SpaceNews (opens the source for this round) | |
| Starcloud | Seed | ParticipantAs recorded: Andreessen Horowitz (scout fund) | $11.0M | TechCrunch (opens the source for this round) | |
| Impulse Space | Series B | ParticipantAs recorded: a16z (Andreessen Horowitz) | $150M | SpaceNews (opens the source for this round) | |
| AstranisRecorded as Series D | Series D and later | LeadAs recorded: Andreessen Horowitz Growth Fund | $200M | TechCrunch (opens the source for this round) | |
| Northwood Space | Seed | Lead | $6.3M | Data Center Dynamics (opens the source for this round) |
| Stage | Rounds |
|---|---|
| Pre-seed | 1 |
| Seed | 4 |
| Series A | 3 |
| Series B | 2 |
| Series C | 1 |
| Series D and later | 2 |
| Other or unlabelled private round | 1 |
| Sector | Rounds |
|---|---|
| Satellite | 5 |
| Ground segment | 3 |
| Infrastructure | 3 |
Investors named on the same counted rounds, by the number of rounds shared.
Showing the 10 most frequent of 30 co-investors. The full list is part of a SpaceNexus Research seat.
Other recorded transactions that name Andreessen Horowitz. Each class below is kept out of every figure on this page by the same rule our quarterly funding editions use; they are listed so nothing is hidden.
| Date | Company | Class | Role | Round size | Source |
|---|---|---|---|---|---|
| Castelion | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | Lead | $800M | PR Newswire (opens the source for this round) | |
| Anduril IndustriesRecorded as Series H | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | Lead | $5.00B | TechCrunch (opens the source for this round) | |
| Hadrian | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z | $131M | PR Newswire (opens the source for this round) | |
| Castelion | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z | $350M | PR Newswire (opens the source for this round) | |
| Hadrian | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z | $260M | CNBC (opens the source for this round) | |
| Castelion | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z | $70.0M | SpaceNews (opens the source for this round) | |
| Anduril IndustriesRecorded as Series F | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z (Andreessen Horowitz) | $1.50B | CNBC (opens the source for this round) | |
| Hadrian | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z (Andreessen Horowitz) | $97.8M | TechCrunch (amount: SEC Form D equity sold) (opens the source for this round) | |
| Anduril IndustriesRecorded as Series E | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | ParticipantAs recorded: a16z (Andreessen Horowitz) | $1.48B | Defense News (opens the source for this round) | |
| Hadrian | Private rounds and grants into companies not classed as space (defense and other cross-domain companies without a space subsector) | Lead | $90.0M | CNBC (opens the source for this round) |
Showing the 10 most recent of 14 counted rounds. The full list and its CSV and JSON export are part of a SpaceNexus Research seat; the figures above are computed from every row. What a Research seat covers.
Rounds come from company announcements, regulatory filings and press reports. Amounts, valuations and investors are as reported and may be incomplete or later revised. Not investment advice, and not an offer or solicitation for any security. Full disclaimer
| Manufacturing | 3 |
| Year | Rounds |
|---|---|
| 2026 | 4 |
| 2025 | 2 |
| 2024 | 4 |
| 2023 | 2 |
| 2022 | 1 |
| 2018 | 1 |
Showing the 10 most recent of 12 transactions not counted. The full list and its CSV and JSON export are part of a SpaceNexus Research seat; the figures above are computed from every row. What a Research seat covers.