Week in Space Data, every Friday.
Investor portfolio, from our funding record
Recorded in our rows as: Main Sequence.
Counted rounds
2
Led
1
1 as participant
Companies
1
Disclosed round value
$160M
2 of 2 rounds disclosed; whole rounds, not this investor's share
First deal
2018-09-28
Gilmour Space
Latest deal
2026-01-20
Gilmour Space
Main Sequence Ventures appears on 2 counted private space funding rounds in our records, into 1 company: recorded as lead on 1 and as a participant on 1.
The earliest is Gilmour Space on 28 September 2018; the latest is Gilmour Space on 20 January 2026.
2 of the 2 rounds disclosed a size, together $160M. That is the size of the rounds Main Sequence Ventures took part in, not the amount Main Sequence Ventures invested: we hold no per-investor allocations and do not estimate them.
The investor most often on the same counted rounds as Main Sequence Ventures is Blackbird Ventures, on 2 rounds.
Private funding rounds into space companies that name Main Sequence Ventures 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 |
|---|---|---|---|---|---|
| Gilmour SpaceRecorded as Series E | Series D and later | ParticipantAs recorded: Main Sequence | $146M | StartupDaily (opens the source for this round) | |
| Gilmour Space | Series B | Lead | $13.7M | Startup Daily (opens the source for this round) |
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
| Stage | Rounds |
|---|---|
| Series B | 1 |
| Series D and later | 1 |
| Sector | Rounds |
|---|---|
| Launch | 2 |
| Year | Rounds |
|---|---|
| 2026 | 1 |
| 2018 | 1 |
Investors named on the same counted rounds, by the number of rounds shared.