Open Field Capital
Open Field Capital is a privately held, New York–based investment management firm founded in 2003 that manages emerging technology portfolios — both public equities and private venture investments — for institutional investors, family offices, and high net worth individuals, organized around mobile, cloud, and AI megatrends.
- Company typePrivate
- Founded2003
- HeadquartersNew York, United States
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Open Field Capital does
Open Field Capital LLC is a privately held, founder-controlled investment management firm established in August 2003 and headquartered at 1140 Ave of the Americas, New York. The firm manages emerging technology portfolios for institutional investors, family offices, and high net worth individuals, employing a long-only investment strategy that combines buy-and-hold principles with proactive cash weighting management to exploit stock price volatility in fast-growing technology companies. Its investment thesis is organized around three 'convergent megatrends' — mobile computing, virtual/cloud computing, and artificial intelligence — and the firm explicitly targets alpha from market dislocations when new technologies create entirely new markets.
The firm operates two service lines. Public Investing applies the long-only volatility-exploitation strategy to publicly traded emerging technology equities. Private Investments manages a venture portfolio that, as of September 30, 2025, spans approximately 50+ holdings across AI infrastructure (Cerebras, Groq, SambaNova, DataRobot), semiconductors, cloud and enterprise software (MongoDB, Box, DocuSign, Nutanix, Cloudera), climate technology (Bloom Energy, Oklo, PsiQuantum), biotechnology (Genesis Therapeutics, Juvena Therapeutics, Synthego), and other emerging tech sectors. Portfolio company exits have included acquisitions by HP (A123 Systems), Google (Actifio), Intel (Berkeley Lights), AMD (Xilinx), Nokia (Numenta), Alphabet/Intrinsic (SambaNova), Meta (Mineiro), and Bending Spoons (Evernote).
The business model is fee-based investment management revenue, with the firm operating as a boutique practice of one to ten employees (three named: Marc Weiss as Principal & CIO, James Stableford as Director of Portfolios & CCO, and Michael Sandifer). There is no disclosed AUM, no public revenue, no external capital, and no parent company. Distribution is exclusively direct relationship management with no intermediary or retail channels, and pricing is private under investment management agreements.
Open Field Capital firmographics
Firmographics- Name
- Open Field Capital
- Legal name
- Open Field Capital LLC
- Website
- https://ofcap.com
- Company type
- Private
- Founded year
- 2003
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Open Field Capital is a privately held, New York–based investment management firm founded in 2003 that manages emerging technology portfolios — both public equities and private venture investments — for institutional investors, family offices, and high net worth individuals, organized around mobile, cloud, and AI megatrends.
- Ownership category
- akta.pro rank
Open Field Capital industry classification
Industry- Product category
- Investment Management
- NAICS
- Portfolio Management and Investment Advice (523940), Open-End Investment Funds (525910), Other Financial Investment Activities (5239)
- SIC
- Investment Advice (6282), Security Brokers, Dealers & Flotation Companies (6211)
- akta.pro primary industry
- Open Finance Expansion (investments, pensions, insurance, utilities data) (FSAGACAK)
Keywords
Where Open Field Capital is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Open Field Capital business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Investment Management Fees: Open Field Capital generates revenue through investment management services, charging fees to institutional investors, family offices, and high net worth individuals for managing public equity and venture investment portfolios.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Open Field Capital product offering
Product offeringCore offering
Open Field Capital is a New York-based investment management firm that manages long-only portfolios of public equity and venture investments in emerging technology companies for institutional investors, family offices, and high net worth individuals. The firm combines buy-and-hold principles with proactive cash weightings management to exploit buying opportunities created by the stock price volatility of fast-growing technology companies. The strategy is anchored in convergent technology megatrends such as mobile computing, virtual/cloud computing, and artificial intelligence.
Product overview
Open Field Capital operates as an investment management firm offering two primary investment services: Public Investing and Private Investments. The Public Investing strategy focuses on exploiting stock price volatility of fast-growing emerging technology companies through a long-only approach combining buy-and-hold with proactive cash weightings management for institutional investors, family offices, and high net worth individuals. The Private Investments division manages venture investments in emerging technology companies, with the portfolio as of September 30th, 2025 including holdings in companies across various technology sectors including AI, cloud computing, semiconductors, climate tech, and biotech.
Differentiator
Problem solved
Functional benefit
Products and services
- Public Investing Long-only public equity investment strategy targeting fast-growing emerging technology companies for institutional investors, family offices, and high net worth individuals. Combines buy-and-hold principles with proactive management of cash weightings to exploit buying opportunities created by stock price volatility of emerging technology companies.
- Private Investments
Companies that use Open Field Capital
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Open Field Capital technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Open Field Capital partnerships and signals
Strategic signalScale indicators2 records
Recent moves5 records
Expansion highlights4 records
Open Field Capital competitors and assessment
Company assessmentDirect peers
- ARK Invest: Public-facing thematic investment manager focused on disruptive innovation (AI, robotics, genomics, fintech) with both ETF products and institutional/private vehicles. Most directly comparable to OFC on tech-thematic concentration and a long-only innovation thesis.
- Andreessen Horowitz (a16z): Premier technology venture capital firm with growing public-equity and crypto exposure. Comparable to OFC on conviction-driven emerging-tech investing across AI, biotech, crypto, and infrastructure.
- Insight Partners: Technology-focused growth equity investor with selective public exposure. Comparable to OFC on thesis-driven emerging-tech deployment across stages, with deeper infrastructure in cloud, AI, and data companies.
- Tiger Global Management: Technology-focused crossover fund that invests in both public and private companies across stages. Directly comparable on emerging-tech public/venture crossover mandate, though materially larger in scale.
- Coatue Management: Technology-focused crossover investor running public long/short equities and private growth/venture capital. Highly comparable to OFC on the convergence of public emerging-tech exposure with direct venture investing in AI infrastructure and software.
Broad incumbents
- Sequoia Capital: Iconic technology venture capital firm now operating public-equity and evergreen vehicles alongside private. Comparable on tech-thematic expertise but operates at meaningfully greater scale and stage breadth than OFC.
- Baron Capital Group: Established fundamental equity manager with flagship Baron Capital Partners and Baron Opportunity Funds heavily weighted toward emerging technology. Comparable as a long-only emerging-tech equity allocator, though substantially larger and more diversified.
- Capital Group: Major asset manager with American Funds and Capital Group private investment vehicles, including technology-focused and growth mandates. Comparable as a long-duration institutional allocator with tech exposure, though materially larger and more diversified than OFC.
- T. Rowe Price: Large global asset manager with dedicated science & technology and growth-equity strategies. Comparable as a long-only tech allocator to institutional clients, though serving a much broader mandate set.
- Franklin Templeton: Global asset manager with technology-themed equity strategies and venture/growth affiliates. Comparable as a broad incumbent offering tech-focused mandates alongside other asset classes.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat2 records
Key risks5 records
Key highlights6 records
Customer concentration
Open Field Capital social profiles
Digital presenceOpen Field Capital financial estimates
Financial estimateRevenue estimate
Valuation estimate
Open Field Capital leadership team
Management profileNumber of profiles
Profiles3 records
Open Field Capital funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Open Field Capital M&A and investment
M&A and investmentM&A
Investments50 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Open Field Capital
What does Open Field Capital do?
Open Field Capital is a New York-based investment management firm that manages long-only portfolios of public equity and venture investments in emerging technology companies for institutional investors, family offices, and high net worth individuals. The firm combines buy-and-hold principles with proactive cash weightings management to exploit buying opportunities created by the stock price volatility of fast-growing technology companies. The strategy is anchored in convergent technology megatrends such as mobile computing, virtual/cloud computing, and artificial intelligence.
Is Open Field Capital a public or private company?
Open Field Capital is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Open Field Capital founded?
Open Field Capital was founded in 2003. It employs 1 to 10 people.
Where is Open Field Capital based?
Open Field Capital is headquartered in New York, United States, in the North America region.
How does Open Field Capital make money?
One revenue line is on record: investment Management Fees.
Who are Open Field Capital's main competitors?
Direct peers on record are ARK Invest, Andreessen Horowitz (a16z), Insight Partners, Tiger Global Management and Coatue Management. Broad incumbents are Sequoia Capital, Baron Capital Group, Capital Group, T. Rowe Price and Franklin Templeton.
Does Open Field Capital have an API?
No public API is recorded for Open Field Capital.
What industry is Open Field Capital in?
Open Field Capital's product category is Investment Management. Its primary akta.pro industry code is FSAGACAK, Open Finance Expansion (investments, pensions, insurance, utilities data). Its NAICS code is 523940 and its SIC code is 6282.