F4 FundFund
TeamPortfolioRaiseChampionsEssays
Sign in
Investment ThesisInvestment TeamF4 Research BriefSelected PortfolioRecent UpdatesFrequent co-investorsSimilar Firms
Warm Fund

ex/ante

www.buildexante.com · Brooklyn, NY

“ex/ante backs founders building 'agentic technology' — tools that restore human agency by strengthening privacy, security, and information integrity. The fund counters surveillance capitalism and digital authoritarianism by investing in technology that gives individuals control over their data, assets, and information.”

$500K – $1M
Check Size
Leads
Lead Tendency
$33M
AUM
01Investment Thesis

Sectors: privacy-enhancing tech, cybersecurity/identity, information integrity, self-custody fintech, and agentic AI infrastructure.

Exclusion Criteria

Pure defense/govtech, surveillance tools, companies that monetize user data without consent, AAA/gaming, non-tech businesses

02Investment Team
ZW
Zoe Weinberg
General Partner
MM
Michael Mosier
Partner
MH
Matt Hawes
Principal
FA
Farhan Abrol
Partner
AU
Anastasia Uglova
Ecosystem Partner
03F4 Research Brief

ex/ante Research

Investment Thesis

ex/ante is the first venture fund dedicated to "agentic technology" — tools that support human agency by increasing privacy, security, and information integrity. Founded by Zoe Weinberg (a Schmidt Futures spinout), the fund's thesis is rooted in the belief that surveillance capitalism and digital authoritarianism pose existential threats to democratic societies. ex/ante backs founders building technology that restores control to individuals over their own data, assets, and information flows.

The fund frames its investment philosophy around three core beliefs: (1) surveillance capitalism and digital authoritarianism threaten digital rights; (2) democratic societies require technology that actively advances human agency; and (3) individuals should control their own data, assets, and information. This makes ex/ante distinct from traditional govtech, civic tech, or defense tech funds — it takes a broader approach to protecting democracy through commercial technology.

Sector Focus

ex/ante invests across five overlapping domains within its "agentic tech" thesis:

Privacy & Data Ownership: User-controlled encryption, zero-knowledge proofs, distributed data infrastructure, and tools that prevent unauthorized data harvesting. Portfolio examples: Cyphlens, Lockr, Common Tools, n0.

Security & Identity: Cybersecurity infrastructure, digital identity, authentication for AI agents, and access management. Portfolio examples: Reality Defender (deepfake detection), Dapple Security, AccessGrid, Anon, Cape.

Information Integrity: Media forensics, anti-disinformation tools, narrative tracking, and algorithmic transparency. Portfolio examples: Reality Defender, Pendulum.

Fintech & Self-Custody: Self-sovereign financial tools, crypto security, and blockchain infrastructure that returns financial control to users. Portfolio examples: Webacy, Quadrillion, Datum.

Agentic AI Infrastructure: AI tools that enhance human decision-making and agency, including privacy-preserving AI development tools. Portfolio examples: Tasker AI, Hound Dog, General Translation.

ex/ante is explicitly tech-agnostic — they invest across AI/ML, web3, data infrastructure, cybersecurity, enterprise, and fintech as long as the company advances human agency.

Stage Focus

ex/ante invests at Pre-Seed and Seed stages. They look to be first institutional capital or co-lead early rounds.

  • Pre-Seed: $500K checks for teams developing early prototypes
  • Seed: $500K–$1M for teams with working product and early traction

They have occasionally deployed follow-on reserves into later rounds for portfolio companies (e.g., Reality Defender's Series A in 2023).

Check Size

Typical check size: $500,000 to $1,000,000

Given the $33M Fund I, they target 25–35 investments total with reserves. The fund emphasizes quality over quantity and deep conviction in founders.

Lead Tendency

ex/ante leads or co-leads most of their investments. Given their pre-seed and seed focus, they often serve as the lead institutional investor in a round, providing credibility alongside their extensive network.

Fund Status & Recent Activity

exante closed Fund I ($33M) in November 2023, with a standout LP roster for a first-time manager: Marc Andreessen, Chris Dixon, Fred Wilson (USV), Kirsten Green (Forerunner), Cendana Capital, Protocol Labs, Ford Foundation, and The Klarman Family Foundation. The fund was spun out from Schmidt Futures (Eric Schmidt's philanthropic venture arm).

As of March 2026, ex/ante continues to actively deploy from Fund I. Their latest known investment was in Octet (March 2026). Portfolio companies span 18+ companies across the privacy, security, and agentic AI landscape.

In February 2025, ex/ante (with support from the Ford Foundation) launched Builder Blueprints — a free resource library helping startup founders implement strong privacy, security, and data governance policies.

Portfolio Highlights

Notable portfolio companies include:

  • Reality Defender: Enterprise deepfake and AI-generated content detection; raised $15M Series A (DCVC-led) and $33M expanded Series A
  • Anon: AI agent authentication — enabling AI tools to take actions on behalf of users with proper identity controls
  • Cape: Privacy-first mobile carrier protecting user identity and location data
  • Lockr: Consumer identity platform managing app permissions and data sharing
  • Webacy: Self-custody crypto security and wallet protection tools
  • AccessGrid: Mobile access control turning phones into secure digital keys (raised $4.4M, Oct 2025)
  • Pendulum: Narrative intelligence and information integrity platform
  • Tasker AI: Agentic AI task execution platform
  • Hound Dog: Privacy testing and PII detection for developer teams
  • Dapple Security: Security platform for enterprise agentic AI deployments

Team

Zoe Weinberg, General Partner & Founder: Formerly at Schmidt Futures (Eric Schmidt's philanthropic initiative), National Security Commission on Artificial Intelligence, Google AI, World Bank IFC, and Goldman Sachs. JD from Yale Law School, MBA from Stanford GSB, BA from Harvard College. Has been published in the NY Times and Foreign Affairs; co-hosts the "Next in Foreign Policy" podcast. She coined the term "agentic technology" with Anastasia Uglova.

Michael Mosier, Partner: Co-founder of Arktouros (legal boutique for emergent technology). Former in-house counsel at Espresso Systems and Chainalysis. Former Acting Director of U.S. Treasury's FinCEN. Served at DOJ and the White House NSC. Adjunct professor at Georgetown University Law Center. Deep expertise at the intersection of crypto, national security, and financial regulation.

Matt Hawes, Principal: Led AI investing at 645 Ventures; advisor at Bain & Company and Insight Partners. BA in Psychology and Computer Science from Harvard. Chapter Lead for BLCK VC.

Farhan Abrol, Partner: Former Head of Public Health at Meta. Early engineer and product leader at Pure Storage (0→IPO); holds 20+ patents. Advises nonprofits on AI deployment in healthcare through the Agency Fund.

Anastasia Uglova, Ecosystem Partner: Specialist Leader at Deloitte (AI security and governance). Founder of Tethics & Chill; host of "The Privacy Podcast." M.S. Information Security and Privacy (UT Austin), BA Government and International Relations (Cornell). Koch and John Stuart Mill fellow.

Founder Preferences

ex/ante backs "renegade" founders with conviction around privacy, security, and democratic values. They favor technical founders with deep domain expertise in their focus areas. Given the policy-heavy backgrounds of the GP team (Treasury, DOJ, Schmidt Futures), they add particular value to founders navigating regulatory complexity. The fund welcomes direct applications and does not require warm introductions.

Geographic Focus

Primarily United States, with some portfolio companies in Brazil. ex/ante is headquartered in Brooklyn, New York.

Decision Process

ex/ante operates as a partnership with Zoe Weinberg and Michael Mosier as the two primary decision-makers, supported by Matt Hawes and Farhan Abrol on the investment team. Given the small team and fund size, decisions can move quickly for the right opportunity.

Notable LPs & Ecosystem

The LP base reflects the fund's thesis: Marc Andreessen and Chris Dixon (crypto/tech believers), Fred Wilson and Kirsten Green (legendary seed investors), Cendana Capital (fund-of-funds), Protocol Labs (Web3 protocol company), Ford Foundation (mission-driven philanthropy), and the Klarman Family Foundation. This mix of traditional VC, Web3, and mission-driven capital reinforces ex/ante's crossover position.

04Selected Portfolio
Consumer Apps & Social
Lockr
Crypto & Web3
Webacy
Developer Tools & Infrastructure
Anon
Enterprise Software
Common Tools·Tasker AI·Datum·General Translation·n0.computer·Octet·Quadrillion·AccessGrid
Media & Entertainment
Pendulum
Security & Cybersecurity
Cape·Cyphlens·Dapple Security·HoundDog·Reality Defender·Confident Security
Open the full portfolio→
05Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (8) →
ex/ante participated in AccessGrid's $4.4M round to build mobile access control turning phones into secure digital keys.
INVESTMENT·harlem.capital
OCT 2025
Participated in Confident Security's $4.2M seed round as the company came out of stealth with an end-to-end encryption layer for AI.
INVESTMENT·techcrunch.com
JUL 17, 2025
Published an essay (co-authored with Union Square Ventures) advocating for a diverse ecosystem of user-owned, privacy-preserving data systems as an alternative to centralized AI platforms.
ESSAY·buildexante.substack.com
JUL 14, 2025
Published an essay (co-authored with Union Square Ventures) arguing individuals should own and control their digital memories across AI platforms rather than corporations centralizing that data.
ESSAY·buildexante.substack.com
JUL 7, 2025
ex/ante, with support from the Ford Foundation, launched Builder Blueprints — a free document library helping startups adopt strong privacy and data governance policies.
NEWS·builder-blueprints.com
FEB 2025
06Frequent co-investors
CI
CEAS Investments
Both backed 3 of the same companies
AccessGrid, Webacy, Reality Defender
MV
Mozilla Ventures
Both backed 2 of the same companies
Webacy, HoundDog
Find the investors for your round→
07Similar Firms
UV
United Ventures
$1M – $8M · Seed · Series A
→
JC
Jump Capital
$1M – $15M · Pre-Seed · Seed
→
T
TCV
$10M – $500M · Growth
→
LV
Lytical Ventures
$100K – $5M · Pre-Seed · Seed
→
AF
Anti Fund
$100K – $3M · Pre-Seed · Seed
→
Quick Reference
Check Size
$500K – $1M
Stages
Pre-Seed · Seed
AUM
$33M
Decision
Partnership
Warm Intro
Not Required
Involvement
Board Seat
Location
Brooklyn, NY
Sector Focus
Fintech & PaymentsEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity
Models
Privacy TechAgentic TechnologyInformation SecuritySelf-Custody
Technology
AI/MLBlockchain/CryptoZero-Knowledge Proofs
See all Fintech & Payments investors →See all Enterprise Software investors →See all Developer Tools & Infrastructure investors →
Visit www.buildexante.com ↗

See how ex/ante matches your startup

Get a personalized match report in minutes.

Get Your Match Report
Focus Areas
Fintech & PaymentsEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity

See how ex/ante matches your startup

Get a personalized match report in minutes.

Get Your Match Report
Is this your firm? Claim your profile
F4 Intelligence Report · Last Researched August 17, 2026F4 Research Engine