Blumberg Capital Research
Overview
Blumberg Capital is a San Francisco Bay Area-based venture capital firm founded in 1991 by David J. Blumberg. With over three decades of experience, the firm has grown into a multi-stage investor with a global footprint, operating from offices in Miami, San Francisco, New York, and Tel Aviv. The firm has backed more than 120 companies, generating 10 unicorns and multiple exits through IPOs and strategic acquisitions.
Investment Thesis
Blumberg Capital positions itself as "more than capital" — an early and growth-stage investor that serves as an active board member and hands-on advisor throughout the full startup lifecycle. Their thesis centers on backing visionary teams at inflection points, with emphasis on transformative technologies including artificial intelligence, enterprise software, cybersecurity, fintech, and healthcare technology.
The firm's "Flying Sphere" logo (referencing da Vinci's design) symbolizes their commitment to founders through market volatility and uncertainty, reflecting a philosophy of long-term partnership. They actively encourage founders to "challenge the status quo in a respectful spirit of teamwork and collaboration."
Stage Focus
Blumberg Capital operates through two complementary investment strategies:
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Early Stage (Core Fund): Primary focus on Seed-round investments, often as the first institutional investor. The firm targets companies with strong technology differentiation and experienced founding teams.
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Venture Growth Fund: A parallel strategy targeting growth-stage companies at critical inflection points — businesses with demonstrated product-market fit that need capital and operational support to scale globally. This fund provides "adaptable capital strategy aligned with founder needs."
Check Size
- Early Stage (Seed): Estimated $500K–$5M per investment
- Growth Stage: Estimated $10M–$50M per investment
- The firm maintains reserves for follow-on investments in top-performing portfolio companies.
Geographic Focus
Blumberg Capital has a strong US focus (San Francisco Bay Area, New York, Miami) combined with deep roots in the Israeli startup ecosystem through their Tel Aviv office. The firm's dual geographic strength enables cross-border partnership opportunities:
- US: SF Bay Area, NYC, Miami (primary markets)
- Israel: Tel Aviv (cybersecurity and enterprise software strength)
- Global: Cross-border expansion support for portfolio companies
The firm's Israeli office, managed by Yodfat Harel Buchris, provides direct access to Israel's world-class cybersecurity and enterprise software ecosystem.
Sector Focus
Blumberg Capital covers multiple technology verticals with particular depth in:
Enterprise Software: Addepar, Streamline AI, WorkJam, Parse.ly, Revionics, FundGuard, Fundbox, Lendio, Pontera, Namogoo, Yotpo
Cybersecurity: BioCatch, Deep Instinct, Hunters.AI, Aryon Security, ChiselStrike, Sealights — reflecting deep connections to the Israeli cybersecurity ecosystem. Historic exits include IntSights (Rapid7), Medigate (Claroty), Authomize (Delinea), Cybellum (LG Electronics), Fortscale (RSA), Cyvera (Palo Alto Networks).
Fintech & Financial Infrastructure: Fundbox, EarnUp, Pontera, Sharegain, Zanbato, FlowFi, FundGuard, ZooZ, Finaro (acquired by Shift4), Katapult (IPO)
Healthcare Technology: Angle Health, Ferrum Health, Theator, Segmed, SmithRx, Dorian Therapeutics, Imagene
Developer Tools & Infrastructure: Hydrolix, Kloudfuse, Sealights, Panoply, Pachyderm, SQream Technologies
AI/ML: Hunters.AI, Prescient AI, Deep Instinct, VerAI — with increasing AI focus across all portfolio categories as of 2024–2025
Lead Tendency
Blumberg Capital typically leads or co-leads early-stage rounds, taking board seats with most seed investments. At the growth stage through their Venture Growth Fund, they participate both as leads and co-investors depending on round dynamics.
Portfolio Highlights
Notable IPOs:
- DoubleVerify (NASDAQ: DV) — digital advertising verification
- Nutanix (NASDAQ: NTNX) — cloud infrastructure
- Braze (NASDAQ: BRZE) — customer engagement platform
- Check Point Software (NASDAQ: CHKP) — cybersecurity pioneer
- Katapult (NASDAQ: KPLT) — fintech
Notable Acquisitions:
- Medigate → Claroty (healthcare IoT security)
- IntSights → Rapid7 (threat intelligence)
- Authomize → Delinea (identity security)
- Databand → IBM (data pipeline observability)
- Cybellum → LG Electronics (automotive cybersecurity)
- Finaro → Shift4 (global payments)
- HootSuite (social media management)
- SupplyPike → SPS Commerce
- SigOpt → Intel
Recent Activity (2024–2025):
- Angle Health raised $134M Series B (December 2025) — AI-native healthcare benefits platform for SMB employees
- FirmPilot raised $11.7M (May 2025) — legal AI platform
- FlowFi raised first funding (February 2024) — financial insights platform for founders
Team
Executive Committee:
- David J. Blumberg — Founder & Managing Partner (Miami). Former executive at Check Point Software, Apax Partners, Bronfman Family Office (Claridge), T. Rowe Price. Harvard A.B. (Government, cum laude), Stanford/INSEAD MBA. Fluent in French, Hebrew, Spanish. Current boards: Flex, Jassby, Kloudfuse, Konfyd, Mytaverse, Trulioo.
- Steve Gillan — COO & CFO (San Francisco). Former CFO at Azure Capital Partners, Mercantila, Fathom Online, Alibris. University of Chicago Booth MBA.
- Yodfat Harel Buchris — Managing Director (Tel Aviv). Former MD at Tamares Capital; founded own investing/consulting firm. Orbotech venture groups. Bradford Executive MBA. Current boards: Hunters, Oversee, Segmed, Sharegain, SQream.
- Bruce K. Taragin — Managing Director (New York). 30+ years VC, investment banking, legal expertise. Co-founded Charles River Computers. Former Hambrecht & Quist. Fordham MBA/J.D. Current boards: Angle Health, BioCatch, FundGuard, Joshu, Nexla, Prescient, WorkJam, Yotpo.
Investment Team:
- Stanton Green — Senior Director (New York). Former co-head of equities Guggenheim Securities, CEO OTR Global and Vista Research (sold to S&P), MD Epoch Partners (sold to Goldman Sachs). Dartmouth.
- Pramod Gosavi — Senior Principal (San Francisco). Focus: cybersecurity, data, dev tools, AI. Former VMware corporate strategy/VC (sourced JFrog, CloudEndure). Wharton MBA, IIT Bombay B.Tech.
- Jimmy Zhu — Senior Principal (San Francisco). Growth equity strategy. Former Premji Invest (Navan, Canva, Chainalysis), Citi Ventures (Honey/PayPal, Grab IPO). MIT Mathematics/Finance, Wharton MBA.
- Jacob Katz — Principal (Miami). Focus: B2B software, fintech. Former Goldman Sachs IB & HFT engineering. Wharton MBA, Penn Computer Engineering. Current boards: FirmPilot, FlowFi, PerfectScale.
- Lior Carmel — VP (New York). Focus: enterprise software, cybersecurity, AI. Former IDF Intelligence Unit 8200 officer (6 years), Deloitte Israel cybersecurity. Harvard MBA.
- Jared Katzen — VP (New York). Focus: enterprise software, fintech, built world. Former Pruven Capital (Pismo/Visa), Houlihan Lokey TMT banking. Duke Economics/Environmental Science.
- Alejandro Hill — Associate (Miami). Former 7BC Venture Capital, Preqin. Babson College (magna cum laude). Columbia Business School VC/PE program.
Growth Services & Value-Add
Blumberg Capital differentiates through its comprehensive "Growth Services" platform:
- Business development and customer partnership introductions
- HR and recruiting support for portfolio companies
- Marketing and communications strategy
- Operational guidance (finance, legal, real estate)
- Innovation Council — network of enterprise technology leaders and CIOs for portfolio company introductions
- Cross-border expansion support, particularly for US-Israel corridor
- International offices provide local expertise in recruiting, go-to-market, and partnership development
Decision Process
Partnership-based investment process across offices in Miami, San Francisco, New York, and Tel Aviv. David Blumberg leads as the key decision-maker, with Managing Directors Bruce Taragin (New York) and Yodfat Harel Buchris (Tel Aviv) having significant autonomous authority in their respective markets.
Founder Preferences
Blumberg Capital seeks:
- Visionary technical founders with deep domain expertise
- Teams with prior operating experience at scale (ideally big tech, successful startups)
- Mission-driven founders building transformative technology
- Founders open to active partnership and board involvement
- Teams building in enterprise software, cybersecurity, fintech, healthcare tech, or AI
- Both US and Israeli founders warmly welcomed
Fund History & AUM
- Founded 1991; over 30 years of investing
- 2021: Closed $225M fund (latest confirmed fund size)
- Dual strategy: core early-stage fund + Venture Growth Fund
- 120+ portfolio companies, 10 unicorns
- Estimated total AUM: $500M+ across active funds (unconfirmed)
- Blumberg Capital has backed companies through multiple market cycles since 1991