Blocktower Capital
also invests Β· investor profileAcquired3 known investors
Institutional crypto investment firm founded in 2017 that traded and venture-invested in digital assets; acquired by Arca in 2025.
Also known as BlockTower Β· BlockTower Capital
Founders & leadership
Investors Β· 3
Company profile
researched Aug 2026BlockTower Capital was an institutional investment firm managing digital assets and traditional assets through a combination of professional trading, venture investing, credit underwriting and portfolio management. It operated as a hybrid hedge fund and venture investor, holding liquid positions in major cryptocurrencies and emerging tokens alongside equity and early-stage stakes in blockchain companies and protocols.
The firm's stated approach combined quantitative and systematic trading with fundamental research, monitoring network activity, protocol developments, regulatory changes and macroeconomic conditions. It also built and used blockchain infrastructure for financial services, including on-chain securitization of traditional assets and work with real-world credit originators. Service lines included cryptocurrency trading strategies, long-term digital asset investments, venture investments, risk management and portfolio optimization for institutional clients, and research and market analysis.
A recorded investment history covers 35 rounds across 30 portfolio companies, weighted toward seed and Series A stages, with a fund vehicle identified as BlockTower Capital Partners Master Fund LP. Portfolio names include Aptos Labs, Centrifuge, Dapper Labs, MobileCoin, Sky Mavis, Goldfinch, Obol, Yield Guild Games, PV01, Midas Protocol, Sonarverse and Architect Financial Technologies. Following a merger announced in March 2025, BlockTower became Arca as of April 30, 2025.
Founding story
BlockTower was founded in 2017 by Matthew Goetz, a former Goldman Sachs executive and engineer, and Ari Paul, a risk manager with the University of Chicago Endowment and a former Susquehanna International Group trader. The firm was established to bring institutional-grade investment strategies to a digital asset sector then characterized by retail trading and fragmented liquidity.
Business model
BlockTower operated as an institutional investment manager, deploying capital across digital and traditional assets through professional trading, venture investing, credit underwriting and portfolio management. It served institutional investors and high-net-worth individuals seeking professionally managed exposure to digital assets, and acted as both an investor in and user of the blockchain projects it backed.
Revenue derived from managing investment vehicles and portfolios on behalf of institutional clients and high-net-worth investors; one third-party estimate placed annual revenue at $10M-$25M as of July 2026.
Traction
Reported assets of roughly $1.7 billion in 2024, after growing from hundreds of millions since founding. Deal records list 35 rounds across 30 portfolio companies, concentrated in financial services and Web3/crypto, with 12 seed and 8 Series A deals recorded and total round volume backed of about $787.8 million.
Latest developments
BlockTower announced a merger with Arca Funds in March 2025. Its website subsequently stated that Arca acquired BlockTower and that BlockTower is now Arca as of April 30, 2025, with Arca operating from Los Angeles and New York.
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
BlockTower was described as operating at the intersection of institutional finance and cryptocurrency markets and as a leading institutional participant in digital asset investment. Comparable firms cited include Polychain Capital, Electric Capital, DCG, Blockchain Capital, Multicoin Capital and 1confirmation.
BlockTower positioned itself as combining traditional-finance and institutional investment discipline with crypto-native strategies, pairing quantitative and fundamental research with professional trading infrastructure, digital asset custody and operational risk controls, and extending into on-chain securitization of traditional assets and partnerships with real-world credit originators.
Technology
The firm applied data-driven and quantitative methodologies alongside fundamental analysis, with research covering on-chain network activity, protocol development and regulatory and macroeconomic factors. It emphasized digital asset custody, transaction execution and risk monitoring practices, and built blockchain infrastructure to support financial services such as on-chain securitization.
Go-to-market
The firm raised and managed capital through fund vehicles, including BlockTower Capital Partners Master Fund LP, and sourced deals by participating in and leading venture rounds for blockchain projects and financial technology companies, often alongside co-lead investors such as Tioga Capital, Framework and HV Capital.
Institutional investors seeking managed digital asset exposure, high-net-worth individuals interested in blockchain venture opportunities, portfolio managers seeking data-driven crypto trading solutions, and blockchain startups seeking strategic capital.
Geography
Sources place the firm in North America, with descriptions citing Miami, Florida as its base and office addresses in Los Angeles and New York; employee data indicates a small team spread across North America, Asia and Europe.
History
Founded in 2017, BlockTower grew to manage hundreds of millions of dollars in assets, with reported assets of roughly $1.7 billion as of 2024. The firm was reported to have suffered a security breach and cyber attack in May 2024. In March 2025 it announced a merger with Arca, a Los Angeles-based digital-asset financial institution, and its website states that Arca acquired BlockTower, with BlockTower becoming Arca as of April 30, 2025.
Risks & controversies
Reports from May 2024 stated that BlockTower Capital, then managing about $1.7 billion in assets, was the victim of a security breach and a cyber attack. The firm's own risk framing notes that digital asset and blockchain investments are volatile and subject to regulatory uncertainty, liquidity constraints and technological risk.
Compiled by commissioned research from 4 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 7
launches, deals, and filingsBlockTower's website states that Arca acquired BlockTower and that BlockTower became Arca as of April 30, 2025.
BlockTower announced plans to merge with Arca, a Los Angeles-based financial institution focused on digital assets.
Reports in May 2024 stated that BlockTower Capital, a crypto investment firm managing roughly $1.7 billion in assets, was the victim of a security breach and a cyber attack.
PV01 Capital Markets Ltd raised $9 million in seed funding from Tioga Capital, BlockTower and Ryze Labs.
$9M source β
Midas Protocol raised $8.75 million in a round co-led by BlockTower, Framework and HV Capital.
$8.8M source β
Sonarverse, a blockchain data infrastructure provider, secured $7 million in a round led by BlockTower Capital.
$7M source β
BlockTower Capital and Tioga Capital Partners were co-lead investors in a $12 million investment round in Architect Financial Technologies, a Chicago-based derivatives brokerage services and trading technology company.
$12M source β
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
βΈResearch sources Β· 4
primary sources listed
- Blocktower Capitalblocktower.com Β· web
4 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Blocktower Capital do?
- Institutional crypto investment firm founded in 2017 that traded and venture-invested in digital assets; acquired by Arca in 2025.
- Who founded Blocktower Capital?
- Blocktower Capital was founded by Ari Paul.
- Who are Blocktower Capital's investors?
- Blocktower Capital's investors include Three Point, Union Square Ventures (USV), Social Leverage.