# Prolog Ventures: portfolio, investments and team > Prolog Ventures is a vc firm based in United States. 41 investments on record, latest May 2019. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/prolog-ventures (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # Prolog Ventures Last cheque observed May 2019. Silence since then is not evidence of inactivity: our sources miss unannounced rounds. Quiet New fund $26M, Jul 2013 VC firm Website unconfirmed Seed Series A Series B Network Security Security Venture Capital & Private Equity Cheques on record **0%** of best year **0** **cheques in 12 months**, 41 on record Since the last cheque **2722** days **00** hrs **00** min **00** sec Median round **$13M** Cheque size, as they say **$1.0M – $7.0M** Rounds led **1 of 41** Sole investor **4 rounds** Exits **3 from the portfolio** Mostly in **United States, 100%** Pitch Prolog Ventures ## Prolog Ventures highlights - 01 41 rounds on record - 02 Mostly Venture and Series A: 57% of its rounds - 03 Sole investor in 4 rounds, median $9.3M - 04 3 exits from the portfolio ## What they do - **Type:** VC firm (from a list, unverified) - **Cheque size:** $1.0M – $7.0M as they say - **Stages:** Seed Series A Series B Growth Pre-IPO - **Sectors:** Network Security Security Venture Capital & Private Equity - **Based in:** St. Louis, United States - **Cold pitches:** Not stated A website was listed for this organisation, but we could not confirm it belongs to the firm that wrote these cheques. Either the site never mentions them, or it turned out to be a different company sharing the name. We show neither it nor anything read from it. [Tell us the right one](https://millionrounds.com/corrections?slug=prolog-ventures). ## The record Every round we can evidence, newest first **41 appearances** - **2019** 1 round - **May** **[BioClarity](https://millionrounds.com/company/bioclarity)** US · Wwd **$13M** *Led* - **2018** 2 rounds - **Nov** **[CoverCress](https://millionrounds.com/company/covercress)** Bridge · Agfundernews **$2.0M** With 5 others - **Jan** **[CareDox](https://millionrounds.com/company/caredox)** Series B · US · FinSMEs **$16M** With 4 others - **2017** 2 rounds - **Mar** **[Benson Hill Biosystems](https://millionrounds.com/company/benson-hill-biosystems)** Series B · US · FinSMEs **$25M** With 10 others - **Mar** **[CareDox](https://millionrounds.com/company/caredox)** Series A · US · FinSMEs **$6.4M** With 2 others - **2015** 5 rounds - **Oct** **[Intellicyt](https://millionrounds.com/company/intellicyt)** Venture · US **$7.4M** With 3 others - **Sept** **[Veran Medical Technologies](https://millionrounds.com/company/veran-medical-technologies)** Venture · US **$42M** With 5 others - **Aug** **[Benson Hill Biosystems](https://millionrounds.com/company/benson-hill-biosystems)** Series A · US **$7.3M** With 5 others - **Jun** **[NeuroLutions](https://millionrounds.com/company/neurolutions)** Venture · US **$1.1M** With 2 others - **May** **[EndoStim](https://millionrounds.com/company/endostim)** Series E · US **$2.5M** Sole investor - **2014** 4 rounds - **Oct** **[Veran Medical Technologies](https://millionrounds.com/company/veran-medical-technologies)** Venture · US **$12M** Sole investor - **Sept** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Series E · US **$1.0M** With 3 others - **Jul** **[Veran Medical Technologies](https://millionrounds.com/company/veran-medical-technologies)** Debt · US **$6.5M** Sole investor - **May** **[Spindrift Beverage](https://millionrounds.com/company/spindrift-beverage)** Venture · US **$2.0M** With 3 others - **2013** 5 rounds - **Jun** **[Singulex](https://millionrounds.com/company/singulex)** Series G · US · bizjournals.com **$15M** With 4 others - **Jun** **[EndoStim](https://millionrounds.com/company/endostim)** Series D · US · bizjournals.com **$14M** With 2 others - **Jun** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Series E · US · t.co **$9.0M** With 3 others - **May** **[Intellicyt](https://millionrounds.com/company/intellicyt)** Venture · US · finsmes.com **$8.0M** With 3 others - **Feb** **[Akermin](https://millionrounds.com/company/akermin)** Series A · US · bizjournals.com **$1.5M** With 2 others - **2012** 5 rounds - **Apr** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Series D · US **$11M** With 4 others - **Mar** **[Singulex](https://millionrounds.com/company/singulex)** Series F · US · sec.gov **$15M** With 2 others - **Jan** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Series D · US · researchviews.com **$1.1M** With 2 others - **Jan** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Growth · US **$10M** With 4 others - **Jan** **[The Nest Collective](https://millionrounds.com/company/the-nest-collective)** Venture · US **$500K** With 2 others - **2011** 1 round - **Mar** **[Veniti](https://millionrounds.com/company/veniti)** Series A · US · bizjournals.com **$14M** With 2 others - **2009** 1 round - **Feb** **[Divergence](https://millionrounds.com/company/divergence)** Series C · US · cleantech.com **$12M** With 2 others - **2008** 2 rounds - **May** **[Asoyia](https://millionrounds.com/company/asoyia)** Venture · US **$4.0M** With 1 other - **Jan** **[CS-Keys](https://millionrounds.com/company/cs-keys)** Series A · US · ceresventurefund.com **$6.3M** With 4 others - **2007** 4 rounds - **Nov** **[Akermin](https://millionrounds.com/company/akermin)** Series A · US · akermin.com **$5.0M** With 3 others - **Sept** **[Chlorogen](https://millionrounds.com/company/chlorogen)** Venture · US **$15M** With 4 others - **Jun** **[Singulex](https://millionrounds.com/company/singulex)** Series D · US · venturebeat.com **$19M** With 3 others - **Jun** **[Dreamerz Foods](https://millionrounds.com/company/dreamerz-foods)** Series B · US · deals.venturebeat.com **$10M** With 6 others - **2006** 5 rounds - **Dec** **[AirXpanders](https://millionrounds.com/company/airxpanders)** Venture · US **$4.0M** With 1 other - **Nov** **[Natural Dentist](https://millionrounds.com/company/natural-dentist)** Series B · US **Undisclosed** With 3 others - **Jul** **[Travanti Pharma](https://millionrounds.com/company/travanti-pharma)** Series B · US **$7.5M** With 1 other - **Jul** **[Singulex](https://millionrounds.com/company/singulex)** Series C · US **$9.3M** With 3 others - **Jan** **[EraGen Biosciences](https://millionrounds.com/company/eragen-biosciences)** Series A · US · eragen.com **$12M** With 3 others - **2005** 2 rounds - **Aug** **[Chlorogen](https://millionrounds.com/company/chlorogen)** Series B · US · bizjournals.com **$6.0M** With 3 others - **Feb** **[Brand New Brands](https://millionrounds.com/company/brand-new-brands)** Series A · US **$15M** With 3 others - **2004** 2 rounds - **Dec** **[Zystor](https://millionrounds.com/company/zystor)** Series A · US **$8.5M** With 6 others An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team Named by the firm itself, on a filing, its Form ADV or its company registration **4 named** BL **Brian L Clevinger** Managing Director of General Partner i Filing they signed GJ **Greg Johnson** Managing Director of General Partner i Filing they signed IB **Ilya B Nykin** Managing Director of General Partner i Filing they signed JS **John Steuart** Managing Director of General Partner i Filing they signed We also hold **9** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## What the register says From the firm's own filings with the SEC, which it must file accurately by law **$2.8M** gross assets of its funds Oct 2026 **Exempt** reporting adviser venture or small private funds - **Legal name:** Prolog Ventures HL II, LLC - **SEC number:** CRD 170338 ## Exits from the portfolio Companies it backed that were later bought or listed **3 in all** **[EraGen Biosciences](https://millionrounds.com/company/eragen-biosciences)** Bought by Luminex **$34M** Jun 2011 **[Divergence](https://millionrounds.com/company/divergence)** Bought by [Monsanto](https://millionrounds.com/fund/monsanto-growth-ventures-mgv) **Undisclosed** Feb 2011 **[Zystor](https://millionrounds.com/company/zystor)** Bought by BioMarin Pharmaceutical **$115M** Aug 2010 An exit counts when it came after the firm's first round in the company. From historical deal records. New fund on file **$26M** raised in Jul 2013 From its SEC filing, not a journalist: a firm that has just raised has money to deploy. ## The cheque Seed Series A Series B Median round joined **$13M** the round, not its cheque Alone, median **$9.3M** Led 1 of 41 rounds **2%** - **Said size:** $1.0M – $7.0M - **Sole investor:** 4 rounds - **Last cheque:** May 2019 - **Exits:** 3 from the portfolio Rounds by stage said on their site - Venture *10* - Series A said *10* - Series B said *6* - Series D *4* - Series E *3* - Series C *2* - Seed said *-* Cheques by year Led Joined 2004 2019 Often in the room with - [Burrill & Company](https://millionrounds.com/fund/burrill-and-company) 6 - [GBS Ventures](https://millionrounds.com/fund/gbs-venture-partners) 5 - [Vivo Ventures](https://millionrounds.com/fund/vivo-ventures) 5 - [Fisk Ventures](https://millionrounds.com/fund/fisk-ventures) 4 - [Great Spirit Ventures](https://millionrounds.com/fund/great-spirit-ventures) 4 - [Heron Capital](https://millionrounds.com/fund/heron-capital) 4 **Pitching Prolog Ventures?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Who they invest alongside The investors most often in the same rounds as Prolog Ventures. A count of rooms they were both in, not a relationship either has claimed. [**Burrill & Company** VC firm **6** rounds together](https://millionrounds.com/fund/burrill-and-company)[**GBS Ventures** VC firm **5** rounds together](https://millionrounds.com/fund/gbs-venture-partners)[**Vivo Ventures** VC firm **5** rounds together](https://millionrounds.com/fund/vivo-ventures)[**Fisk Ventures** VC firm **4** rounds together](https://millionrounds.com/fund/fisk-ventures)[**Great Spirit Ventures** Growth equity **4** rounds together](https://millionrounds.com/fund/great-spirit-ventures)[**Heron Capital** VC firm **4** rounds together](https://millionrounds.com/fund/heron-capital)[**Advantage Capital** Corporate VC **3** rounds together](https://millionrounds.com/fund/advantage-capital)[**Cultivation Capital** VC firm **3** rounds together](https://millionrounds.com/fund/cultivation-capital)[**OrbiMed** Private equity **3** rounds together](https://millionrounds.com/fund/orbimed)[**Alexandria Real Estate Equities** VC firm **2** rounds together](https://millionrounds.com/fund/alexandria)[**Arboretum Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/arboretum-ventures)[**Correlation Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/correlation-ventures) ## Recently backed The latest companies Prolog Ventures put money into. [**BioClarity** $13M · May 2019](https://millionrounds.com/company/bioclarity)[**CoverCress** $2.0M · Nov 2018](https://millionrounds.com/company/covercress) ## Quick answers about Prolog Ventures ### What does Prolog Ventures invest in? Prolog Ventures invests most often at Venture and Series A (57% of the rounds on record), in sectors such as Network Security, Security and Venture Capital & Private Equity. ### How active is Prolog Ventures? 41 investments on record, 0 of them in the last 12 months, and it led 1. The most recent was in May 2019. ### What has Prolog Ventures invested in recently? Its most recent investments on record: BioClarity (Undisclosed round, May 2019), CoverCress (Bridge, Nov 2018) and CareDox (Series B, Jan 2018). ### How big are Prolog Ventures's cheques? The median round it joins is $13M. It says it writes cheques of $1.0M to $7.0M. ### Does Prolog Ventures lead rounds? Sometimes: it led 1 of its 41 investments on record (2%). ### Where does Prolog Ventures invest? Most of the companies it backs are in the United States (100%). ### Is Prolog Ventures investing now? No investments in the last 12 months; the latest was in May 2019. ### Who does Prolog Ventures invest alongside? Most often Burrill & Company (6 rounds together), GBS Ventures (5 rounds together) and Vivo Ventures (5 rounds together). ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=prolog-ventures) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=prolog-ventures)