Dafina Toncheva
InvestorGeneral Partner at US Venture Partners · Board director at Surgical Safety Technologies · Board director at Delfina Care · Board director at Arkose Labs
Menlo Park, California
Writes $2M – $10M checks · typically $6M
Find your path to Dafina
627 people in our graph share verified history with Dafina — schools, employers, funds. One of them is your warm intro.
About
Dafina Toncheva joined USVP in 2012 as a General Partner investing in emerging enterprise technologies, focusing on enterprise SaaS applications and security. Before USVP she was a Principal at Tugboat Ventures and an investor at Venrock, and earlier held development and product roles at Microsoft.
Contact· self-published, not guessed
Invests in
CybersecurityEnterprise SoftwareSaaS
Board director at Surgical Safety Technologies
Intro paths
In turn, Dafina can intro founders to Surgical Safety Technologies's investors below.
Surgical Safety Technologies's investors · 2
Co-founders at Surgical Safety Technologies
Board director at Delfina Care
Intro paths
In turn, Dafina can intro founders to Delfina Care's investors below.
Delfina Care's investors · 10
Co-founders at Delfina Care
Board director at Arkose Labs
Intro paths
In turn, Dafina can intro founders to Arkose Labs's investors below.
Arkose Labs's investors · 9
Co-founders at Arkose Labs
Experience
- U.S. Venture PartnersGeneral Partnercurrent2012 — presentMenlo Park, CA
- Percepto - Autonomous DronesBoard Member and Lead Investorcurrent2019 — presentIsrael
- Carrot FertilityBoard Member and Lead Investorcurrent2020 — presentSan Francisco Bay Area
- Raken, Inc.Board Member and Lead Investorcurrent2018 — presentGreater San Diego Area
- Arkose LabsBoard Member and Lead Investorcurrent2018 — presentSan Francisco Bay Area
- Luma HealthBoard Member and Lead Investorcurrent2017 — presentSan Francisco Bay Area
- InsideSales.com (acq. by Aurea)Board Member and Lead Investor2012 — 2021Provo, Utah Area
- Kenna Security (acq by Cisco)Board Observer and Lead Investor2012 — 2021
- Prevoty (acq by Imperva)Board Member and Lead Investor2015 — 2018Greater Los Angeles Area
- MATRIXX Software inc.Board member and Lead Investor2010 — 2012
- Aria SystemsBoard Observer2008 — 2012
- Risk I/OBoard Of Directors2010 — 2012
- Cloudflare, Inc.Lead Investor2009 — 2010
- VenrockInvestor2008 — 2010
- Bain&CoConsultant2007
- MicrosoftProgram Manager2002 — 2006
- MicrosoftSoftware Design Engineer2002 — 2004
Skills & more
From Dafina's professional profile.
Deals · 7
Surgical Safety TechnologiesBoard seat
via US Venture Partners · filed Mar 2026 · $20.2M raise
Delfina CareBoard seat
via US Venture Partners · filed Feb 2025 · $17.4M raise
Arkose LabsBoard seat
via US Venture Partners · filed May 2021 · $70M raise
ApptimizeBoard seat
via US Venture Partners · filed Aug 2016 · $12.4M raise
InsideSalesBoard seat
via US Venture Partners · filed Mar 2015 · $90M raise
StarMobileBoard seat
via US Venture Partners · filed Mar 2015 · $3M raise
RakenLed round
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Led
Cloudflare
Board seats
Carrot FertilityLuma HealthPerceptoPrevotyZero Networks
Investor
Aria SystemsKenna SecurityMatrixx Software
Sources: the firm's website · SEC Form D filings.
Colleagues at US Venture Partners
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Frequently asked questions
- Who is Dafina Toncheva?
- Dafina Toncheva joined USVP in 2012 as a General Partner investing in emerging enterprise technologies, focusing on enterprise SaaS applications and security. Before USVP she was a Principal at Tugboat Ventures and an investor at Venrock, and earlier held development and product roles at Microsoft.
- Where does Dafina Toncheva work?
- Dafina Toncheva is General Partner at US Venture Partners and Board director at Surgical Safety Technologies and Board director at Delfina Care and Board director at Arkose Labs.
- What does Dafina Toncheva invest in?
- Dafina Toncheva invests in Cybersecurity, Enterprise Software, SaaS.
- What check size does Dafina Toncheva write?
- Dafina Toncheva typically writes checks of $2M – $10M.
- What boards does Dafina Toncheva sit on?
- Dafina Toncheva holds tracked board seats at Apptimize, Arkose Labs, Arkose Labs, Carrot Fertility, Delfina Care, InsideSales, Luma Health, Percepto, Prevoty, StarMobile.
- What companies has Dafina Toncheva invested in?
- Investments tracked here include Cloudflare, Raken, Aria Systems, Kenna Security, Matrixx Software.
- Where did Dafina Toncheva go to school?
- Dafina Toncheva studied at Stanford University Graduate School of Business (MBA); Harvard University (BA, Computer Science).
- Does Dafina Toncheva lead rounds?
- Yes — Dafina Toncheva has led 2 tracked investments.
Same school
Also attended Stanford University Graduate School of Business2,000
+ 1,994 more
Also attended Harvard University2,000
+ 1,994 more
Shared employers
Also worked at Carrot Fertility7
+ 1 more
Also worked at Raken, Inc.3
Also worked at Risk I/O13
+ 7 more
Also worked at Venrock92
+ 86 more