PROOF
PROOF is an investment adviser that reports to the SEC as exempt based in Arlington, VA. It reports advising 104 venture funds, with $727M in gross private fund assets as of its Form ADV filed Mar 30, 2026.
Focus
Not known yet. The SEC does not ask a firm what stages or sectors it invests in. Once the firm claims this profile, or rounds it invested in are recorded, it will show here with its source.
Portfolio
No rounds recorded yet. A round appears here when a press release, news report or the company names this firm as an investor, with a link to that source.
People
- John F BurkeLast named Sep 2, 2026
- Thanasis DelistathisLast named Sep 2, 2026
- Thanasis F DelistathisLast named Sep 2, 2026
- John C Backus, Jr.Last named Nov 13, 2025
- Thanasis C DelistathisLast named Nov 13, 2025
- Sahej C SuriLast named Sep 25, 2025
- Bryan A CiambellaLast named Feb 28, 2025
- Jennifer A SchretterLast named Feb 28, 2025
- John C BackusLast named Dec 16, 2024
- Ciambella A CiambellaLast named Jul 22, 2024
- Jennifer C SchretterLast named Apr 10, 2023
- Michael W ZarlengaLast named Dec 2, 2021
- Stephen P MullinsLast named Dec 2, 2021
- John C BurkeLast named Oct 25, 2021
A fund's Form D names the executive officers and directors of its general partner when it is filed. People stay listed with the date they were last named; someone who has left may still appear until a newer filing or a correction says so.
Funds
| Fund | Formed | Raised | Target | Last filed |
|---|---|---|---|---|
| PROOF II GI LLC | 2026 | $5.6M | $5.6M | Sep 2, 2026 |
| PROOF IV ONBI LLC | 2026 | $840K | $840K | Sep 2, 2026 |
| PROOF SIDE IV, LP | 2024 | $561K | Indefinite | May 28, 2026 |
| PROOF IV FHI LLC | 2026 | $630K | $630K | May 7, 2026 |
| PROOF III HLI LLC | 2024 | $3.2M | $3.2M | Apr 16, 2026 |
| PROOF AP, LLC | 2022 | $2.3M | $2.3M | Apr 6, 2026 |
| PROOF IV RFI LLC | 2026 | $788K | $788K | Mar 27, 2026 |
| PROOF III FTC LLC | 2026 | $496K | $496K | Mar 3, 2026 |
| PROOF ZLI, LLC | 2023 | $2.6M | $2.6M | Dec 22, 2025 |
| PROOF IV GXAI LLC | — | $420K | $420K | Nov 13, 2025 |
| PROOF IV HYHI LLC | 2025 | $928K | $928K | Nov 13, 2025 |
| PROOF III UMTI LLC | 2023 | $1.3M | $1.3M | Oct 9, 2025 |
| PROOF IV CDI LLC | 2025 | $1.3M | $2M | Sep 25, 2025 |
| PROOF III PAIL LLC | 2025 | $862K | $862K | Sep 25, 2025 |
| PROOF III TGEI LLC | 2025 | $1.5M | $1.5M | Jul 2, 2025 |
| PROOF III SHI LLC | 2023 | $446K | $446K | Jul 2, 2025 |
| PROOF Fund IV, LP | 2024 | $27M | Indefinite | Jul 2, 2025 |
| PROOF III RVCI LLC | 2025 | $522K | $522K | Jun 17, 2025 |
| PROOF III TBOI LLC | 2025 | $662K | $662K | May 9, 2025 |
| PROOF II Oakhouse IBQP, LLC | 2021 | $2.2M | $2.2M | Feb 28, 2025 |
| PROOF III UDSI LLC | 2024 | $929K | $929K | Feb 28, 2025 |
| PROOF III KUE LLC | 2022 | $2M | $2M | Dec 18, 2024 |
| PROOF III AIR LLC | 2024 | $1.6M | $1.6M | Dec 16, 2024 |
| PROOF III OWLI LLC | 2024 | $653K | $653K | Dec 16, 2024 |
| PROOF III KII, LLC | 2022 | $496K | $496K | Nov 14, 2024 |
| PROOF DPI3, LLC | 2023 | $1.8M | $1.8M | Nov 14, 2024 |
| PROOF III LTMC LLC | 2024 | $706K | $706K | Sep 23, 2024 |
| PROOF III CPIQ LLC | 2024 | $818K | $818K | Aug 19, 2024 |
| PROOF III JCI LLC | 2024 | $737K | $737K | Aug 19, 2024 |
| PROOF II RLH LLC | 2024 | $1.4M | $1.4M | Aug 19, 2024 |
| PROOF III ODI LLC | 2022 | $485K | $485K | Jul 31, 2024 |
| PROOF III TSI LLC | 2022 | $544K | $544K | Jun 17, 2024 |
| PROOF III ZCSI LLC | 2024 | $2.6M | $2.6M | May 31, 2024 |
| PROOF AVC2, LLC | — | $644K | $644K | Apr 16, 2024 |
| PROOF III C8QP LLC | 2022 | $634K | $634K | Apr 1, 2024 |
| PROOF II Javelin CH, LLC | 2020 | $1.1M | $1.1M | Jan 29, 2024 |
| PROOF III ADGT LLC | 2023 | $676K | $676K | Jan 4, 2024 |
| PROOF II Javelin MGI, LLC | 2021 | $566K | $566K | Jan 4, 2024 |
| PROOF II VI, LLC | 2023 | $6.7M | $6.7M | Dec 4, 2023 |
| PROOF III PDI LLC | 2023 | $1.9M | $1.9M | Nov 20, 2023 |
| PROOF DPI2, LLC | 2023 | $5.9M | Indefinite | Sep 21, 2023 |
| PROOF III RMDI, LLC | 2023 | $1.1M | $1.1M | Jul 31, 2023 |
| PROOF Fund III, LP | 2021 | $124M | Indefinite | May 31, 2023 |
| PROOF Side III, LP | 2021 | $12M | Indefinite | May 31, 2023 |
| PROOF III CBSI LLC | 2023 | $1.8M | $1.8M | Apr 10, 2023 |
| PROOF II Javelin CH2, LLC | 2023 | $626K | $626K | Jan 26, 2023 |
| PROOF III FMI LLC | 2022 | $3.2M | $3.2M | Jan 26, 2023 |
| PROOF III VDM LLC | 2022 | $3.8M | $3.8M | Aug 24, 2022 |
| PROOF II OTS2, LLC | 2022 | $2.4M | $2.4M | Aug 4, 2022 |
| PROOF III ACI LLC | 2022 | $670K | $670K | Aug 4, 2022 |
| PROOF III C8AI LLC | 2022 | $3.5M | Indefinite | Apr 4, 2022 |
| PROOF II SSI, LLC | 2021 | $4.4M | $4.4M | Mar 28, 2022 |
| PROOF III HTL, LLC | 2022 | $4.7M | $4.7M | Mar 3, 2022 |
| PROOF II Oakhouse IB, LLC | 2021 | $1.8M | $1.8M | Feb 28, 2022 |
| PROOF Acquisition Sponsor I, LLC | 2021 | $14M | $14M | Dec 2, 2021 |
| PROOF JP, LLC | 2020 | $1.3M | $1.3M | Nov 22, 2021 |
| PROOF II PEI, LLC | 2021 | $1.4M | $1.4M | Nov 15, 2021 |
| PROOF II TLI, LLC | 2021 | $6.2M | $6.2M | Oct 25, 2021 |
| PROOF II EDI, LLC | 2021 | $5.5M | $5.5M | Oct 1, 2021 |
| PROOF II PAI, LLC | 2021 | $5.5M | $5.5M | Aug 27, 2021 |
| PROOF II VM2, LLC | 2021 | $1.9M | $1.9M | Aug 27, 2021 |
| PROOF II VMQP, LLC | 2021 | $7.4M | $7.4M | Aug 27, 2021 |
| PROOF II SLT, LLC | 2021 | $2.9M | $2.9M | Aug 26, 2021 |
| PROOF II MHI, LLC | 2021 | $3.1M | $3.1M | Aug 26, 2021 |
| PROOF II LI, LLC | 2021 | $957K | $957K | Aug 26, 2021 |
| PROOF II TBP, LLC | 2021 | $1.1M | $1.1M | Jul 23, 2021 |
| PROOF II Javelin FITI, LLC | 2021 | $4M | $4M | Jul 21, 2021 |
| PROOF II GEI, LLC | 2021 | $2.3M | $2.3M | May 21, 2021 |
| PROOF DPI, LLC | 2021 | $3.5M | $3.5M | Apr 27, 2021 |
| PROOF DPQPI, LLC | 2019 | $16M | $16M | Apr 27, 2021 |
| PROOF II MC, LLC | 2021 | $4.8M | $4.8M | Apr 26, 2021 |
| PROOF II OTS, LLC | 2020 | $6.6M | $6.6M | Mar 24, 2021 |
| PROOF II VM, LLC | 2020 | $8.1M | $8.1M | Feb 22, 2021 |
| PROOF II TSL, LLC | 2021 | $13M | $13M | Jan 27, 2021 |
Funds are matched to this firm by the manager named on their filings or by name. If a fund here is not theirs, tell us below.
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