Prolog Ventures, LLC
Micro VC, based in St Louis, Missouri, reporting $8.8M of fund assets across 2 funds.
Composed from this organization's classification, location and filed figures.
1 additional co-investor or affiliate, 4 additional investments, funds and LPs, 1 verified contact (1 firm phone)
Every relationship, signal and contact on this record, with the source on each.
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
What matters now
- 3 dealswith OrbiMed
Invests most often alongside OrbiMed (3 shared deals) and Burrill & Company (3 shared deals).
pair last observed on record 7 Jun 2013, not a deal date · The firms it syndicates with are the likeliest to see the same deals and to fill out its rounds.
Measuredshared rounds and portfolio companies on recordFor Founders building a round, co-investorsCo-investors →
People to know
View all people- Managing DirectorWhy: Managing directorNo route on file yet
- Managing DirectorWhy: Managing directorNo route on file yet
- Managing DirectorWhy: Managing directorNo route on file yet
Relationship network
14 connected entities13 observed rounds6 repeat counterparties11 dated rounds shown here, 2009 to 2013
From financing rounds and every investor named in them, Form ADV and Form D filings, the firm's funds and team, and disclosed LP commitments in the venture capital graph. A round's amount is the size of the round, not money that moved between two investors.
Some relationships on this record are counted rather than named here. They open with the full profile.
Click any name or line for the rounds and sources behind it. Line weight is rounds together; dashed lines are inferred.
- Sponsor
- Company
- Fund or vehicle
- Person
›How strength and recency are read
Co-investors are read from the rounds: three or more shared rounds is a strong observed relationship, two a repeat co-investor, one a single round. Funds and people are structural. Nothing is scored that a reader cannot check.
Darker lines were active in the last 24 months or are current; lighter lines are older or undated.
How am I connected?
Name your firm, a company or a person, and DFX finds the published routes to Prolog Ventures, LLC: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.
See how you connect to Prolog Ventures, LLC
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
Investing
7 companies on record, 0 new in 12 months
Investments on record
What these amounts mean“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.Acquired, Public, Exited and Active are what the firm’s own portfolio card says, read on the date shown when you hover the chip; they are not deal dates. A company with no chip is one whose card states no outcome: DFX does not assume it is active.| Company | Round | Role | Partner | Round size | This investor | Date | Source |
|---|---|---|---|---|---|---|---|
| Singulex Inc | Form D equity offering | unknown · board | Greg Johnson (strongly supported) | $12.2M form d sold | unknown | Jun 7, 2013 | Inference Form D |
| ShopWell Solutions, Inc. | Form D equity offering | unknown · board | Ilya B Nykin (strongly supported) | $838,878 form d sold | unknown | Dec 20, 2012 | Inference Form D |
| Altheus Therapeutics Inc | Form D equity offering | unknown · board | Brian L Clevinger (strongly supported) | $5.3M form d sold | unknown | Mar 9, 2012 | Inference Form D |
Stated thesis versus observed behaviour
- 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
Team
6 current, 1 departed
Decision makers
- Brian L Clevinger · Managing DirectorWhy this person: Managing director; Named with investment responsibility
- Greg Johnson · Managing DirectorWhy this person: Managing director; Named with investment responsibility
- Ilya B Nykin · Managing DirectorWhy this person: Managing director; Named with investment responsibility
Ranked by the role the firm or its filing states, a route on file and deals led. Every reason is read from the record, never inferred. Routes are published by the person or the firm (their bio, the team page or a filing) and are revealed on a plan; data bought from a provider is never shown, and a route printed at a firm the person has since left is held back.
Investment team
How the team is orderedPartners who lead rounds first (rounds led, then deals attributed, then seniority), then the rest of the investment team, then investor relations, finance and operations. A person named by two sources under two spellings is shown once.- Managing Director · 8 deals attributed
- Managing Director · 3 deals attributed
- Managing Director · 2 deals attributed
Contacts
1 firm phone on record, each with its source. Values open with the complete profile.
Funds and LPs
2 vehicles, 0 LPs disclosed
Funds and vehicles
What these amounts meanGAV 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.| Vehicle | Type | Vintage | Lifecycle | Reported GAV | Owners | Form D sold | Latest Form D |
|---|---|---|---|---|---|---|---|
| Prolog Capital a, L.P. | Fund | unknown | Unknown | $5.2M Mar 28, 2018 | 79 | unknown | unknown |
| Prolog Capital B, L.P. | Fund | unknown | Unknown | $3.5M Mar 28, 2018 | 79 | unknown | unknown |
Limited partners
Known LPs and allocators
What these amounts and dates areEach commitment is counted once across the pension tape and the allocator graph. A commitment date prints only when the source printed one; otherwise the row carries the report date. A foundation’s 990-PF line is a holding at fair value, never a commitment. Rows without a fund on the venture graph are commitments to this manager.Relationships across DFX
2 co-investors
Co-investors
- 2013-06-073 shared deals · recurring
- 2010-12-023 shared deals · recurring
Evidence and history
4 dated events, 21 observations from 1 source
Timeline
- seen on or beforeSep 15, 2026Prolog Ventures, LLC: INSTITUTIONAL_VC -> MICRO_VC (venture manager, reported GAV $8.8M across 2 vehicles)Classification changedClassificationInference
- Mar 23, 2012Prolog Ventures, LLC first filed Form ADV (ERA, venture capital fund adviser exemption)
- Mar 23, 2012Prolog Capital B, L.P. first reported on Form ADV by Prolog Ventures, LLC (Venture Capital Fund), GAV $6,540,266
- Mar 23, 2012Prolog Capital a, L.P. first reported on Form ADV by Prolog Ventures, LLC (Venture Capital Fund), GAV $6,999,323
Identity and regulatory footprint
Address, phone, Form ADV filing and ownersForm ADV filed Mar 28, 2018 · 2 private fundsShowHide
- Headquarters
- St Louis, MOadviserinfo.sec.gov
- Office address
- unknownadviserinfo.sec.gov
- Business phone
- unknownadviserinfo.sec.gov
- Website
- PROLOGVENTURES.COM
- SEC adviser type
- Exempt reporting adviseradviserinfo.sec.gov
- SEC exemption claimed
- unknown
- Latest Form ADV
- Mar 28, 2018
- Private funds reported
- 2 (2 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets, adviser total
- $8.8Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Classification history
Classification history
Every classification this record has carried2 on recordShowHide
- Sep 15, 2026Micro VC (probable, 80%)Venture manager, reported GAV $8.8M across 2 vehicles
- Sep 12, 2026Institutional venture firm (probable, 70%)Venture manager with no reported fund assets yet (scale unknown)
Evidence
Every observation behind this profile, with its source, date and class
| Fact | Value | Effective | Class | Source |
|---|---|---|---|---|
| SEC adviser type | Exempt reporting adviser | Mar 28, 2018 | Fact | Form ADV |
| First Form ADV filing | 2012-03-23 | Mar 28, 2018 | Fact | Form ADV |
| Adv history loaded | adv-hist-1 | Sep 12, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2018-03-28 | Mar 28, 2018 | Fact | Form ADV |
| Venture share of reported funds | 1 | Mar 28, 2018 | Fact | Form ADV |
| Business phone | Mar 28, 2018 | Fact | Form ADV | |
| Headquarters | St Louis, MO | Mar 28, 2018 | Fact | Form ADV |
| Office address | Mar 28, 2018 | Fact | Form ADV | |
| Legal form | Limited Liability Company | Mar 28, 2018 | Fact | Form ADV |
| Private funds reported | 2 | Mar 28, 2018 | Fact | Form ADV |
| Private fund gross assets (reported) | $8.8M | Mar 28, 2018 | Fact | Form ADV |
| Venture funds reported | 2 | Mar 28, 2018 | Fact | Form ADV |
| Website | Mar 28, 2018 | Fact | Form ADV |
How this is scored
Scores, classification basis and filing advisersMicro VC, probable · 5 filing advisers share this firmShowHide
Venture manager, reported GAV $8.8M across 2 vehicles
This firm files as 5 advisers on prologventures.com: Prolog Ventures Hl II, LLC, Prolog Ventures Hl, LLC, Prolog Ventures II, LLC and 1 more adviser. Each keeps its own CRD, funds and filings; the grouping is the website each swore to on Form ADV and is recomputed every pass.
- importance
- gav: 0 · funds: 0.17 · people: 0.12 · investments: 0.41 · co investors: 0.12
- active deployment
- investments 12m: 0 · fund raising 18m: 0 · people joined 12m: 0 · vintage within 3y: 0 · latest investment at: not scored
- emerging manager
- fund count: 2 · reported gav: $8.8M · first adv filing: 2012-03-23 · years since first filing: 14.5
Fits, record history and connections
scored matches for this investor, every identity change, every edge
Record history
- Organization classification changed2026-09-15
- Grouped with firm2026-09-12
- Adviser's first ADV filing2012-03-23source on record
The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.
Not yet on record: latest vintage.