DFX Intelligence
Venture Capital Intelligence
Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.
Firms / Hydrazine Capital GP, LLC
Hydrazine Capital GP, LLC
Micro VC · probableUSSEC exempt reporting adviser
venture manager, reported GAV $28.1M across 1 vehicles
Importance
11
low
Active deployment
4
low
Emerging
0
low
Completeness
50
elevated
Freshness
97
high
Research priority
4
low
Identity and regulatory footprint
- Headquarters
- unknown
- Office address
- unknown
- Business phone
- 4159165040adviserinfo.sec.gov
- Website
- unknown
- SEC adviser type
- exempt reporting adviseradviserinfo.sec.gov
- SEC exemption claimed
- unknown
- Latest Form ADV
- Nov 25, 2024
- Private funds reported
- 1 (1 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets
- $28.1Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
- business phone
- 4159165040adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
2 observed deals
Stated (the firm’s website)
- Sectors
- not stated or not yet read
- Stages
- not stated or not yet read
- Geography
- not stated
- Check size
- not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
Other Energy 50%Other Technology 50%
lead rate n/afollow-on rate n/anew logos, 12 months 1
Funds and vehicles
1 reported, 1 no longer reported
| Vehicle | Type | Vintage | Lifecycle | Reported GAV | Owners | Form D sold | Latest Form D |
|---|---|---|---|---|---|---|---|
| Hydrazine Capital, L.P. | Fund | unknown | Unknown | $28.1M Nov 25, 2024 | 5 | unknown | unknown |
| Hydrazine Capital II, L.P. | Fund | 2015 adv first reported | Wound down | $322M Feb 20, 2020 | 5 | unknown | unknown |
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
2 current, 0 departed
Jack Altman
General partnerMember Of Hydrazine Capital Gp, Llc · since Apr 1, 2012
SAM Altman
General partnerManaging Director Of Hydrazine Capital Gp, Llc · since Apr 1, 2012
Investments on record
2 edges, 2 companies, 2 partner-attributed
| Company | Round | Role | Partner | Round size | This investor | Date | Source |
|---|---|---|---|---|---|---|---|
| Copilot Labs, Inc. \ DE | board seat | unknown · board | Jack Altman (strongly supported) | unknown | unknown | Jan 23, 2026 | Inference SEC EDGAR Form D data sets (quarterly) |
| Antares Nuclear, Inc. | board seat | unknown · board | Jack Altman (strongly supported) | unknown | unknown | Oct 9, 2024 | Inference SEC EDGAR Form D data sets (quarterly) |
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
0 relationships from shared deals, counted for the whole firm
No co-investor relationship yet: these are derived only from rounds and portfolio listings the graph has seen both investors on.
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
6 dated events
- Mar 23, 2021Hydrazine Capital II Spv, LLC no longer reported on Form ADV by Hydrazine Capital GP, LLCFund no longer reportedFundsInferenceHydrazine Capital II Spv, LLCSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 23, 2021Hydrazine Capital II, L.P. no longer reported on Form ADV by Hydrazine Capital GP, LLCFund no longer reportedFundsInferenceHydrazine Capital II, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Feb 23, 2016Hydrazine Capital II Spv, LLC first reported on Form ADV by Hydrazine Capital GP, LLC (Venture Capital Fund), GAV $5,000,000Fund first reported on Form ADVFundsFactHydrazine Capital II Spv, LLCSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Mar 30, 2015Hydrazine Capital II, L.P. first reported on Form ADV by Hydrazine Capital GP, LLC (Venture Capital Fund), GAV $40,000,000Fund first reported on Form ADVFundsFactHydrazine Capital II, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Oct 26, 2012Hydrazine Capital, L.P. first filed Form ADV (ERA, venture capital fund adviser exemption)First SEC adviser filingOrganizationFactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Oct 26, 2012Hydrazine Capital, L.P. first reported on Form ADV by Hydrazine Capital, L.P. (Venture Capital Fund), GAV $20,321,556Fund first reported on Form ADVFundsFactHydrazine Capital, L.P.SEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Classification history
- Sep 12, 2026Micro VC (probable, 80%, cls-1)venture manager, reported GAV $28.1M across 1 vehicles
Evidence
26 observations from 1 source