# AlpacaDB

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/alpacadb

- Industry: Financial Services
- Headquarters: San Mateo, US
- Website: www.alpaca.markets/
- Total disclosed funding: $252M
- Latest round: Series D (Jan 14, 2026)
- Investors on record: 24

## About

AlpacaDB, Inc., is a US-based financial technology firm that provides a suite of developer-focused APIs for stock, options, and cryptocurrency trading, enabling seamless integration of trading applications. Co-Founded by Yoshi Yokokawa (CEO) and Hitoshi Harada in 2015, headquartered in San Mateo, California, AlpacaDB, Inc. specializes in trading solutions that cater to fintech startups and institutional clients. The co- founder, Alexey Mastryukov, Hitoshi Harada, Yoshi Yokokawa, and Yuki Hayashi, have a history in entrepreneurship, notably with CEO Alexey Mastryukov leading the company. In August 2026, AlpacaDB, Inc. raised an undisclosed amount of venture funding from Krungsri Finnovate. Alpaca Securities LLC primarily offers a comprehensive suite of developer-first APIs that enable stock, options, and cryptocurrency trading. Their core product, the Broker API, allows businesses and developers to create fully embedded trading applications, facilitating algorithmic trading and app integration. The API suite supports various investing strategies, providing functionalities such as commission-free stock trading, local currency trading for international clients, and multi-leg options trading for US-listed equities and ETFs. Alpaca's services cater to diverse customers, including fintech startups, digital wallets, broker-dealers, hedge funds, algorithmic traders, and robo-advisors, with a focus on both the United States and Japan. Alpaca generates revenue through transaction structures tied to its API services, including partnerships with fintech firms. Clients leverage Alpaca's technology to offer trading solutions, enabling users to trade stocks and options without incurring commission fees. Revenue streams also include transaction-based fees for specific trading activities. Furthermore, Alpaca's Local Currency Trading API enhances usability for international clients, and the company supports business-to-business (B2B) relationships by providing services to institutional clients and partners. The company will use the August 2026 funding to support its wealth management and foreign exchange platform business.

## Funding rounds

- Series D, Jan 14, 2026, $150M — Bank Muscat, Social Leverage Capital, Horizons Ventures, Endeavor Catalyst, Drive Capital, Kraken, DRW Venture Capital, Portage Ventures, Diagram, MUFG Innovation Partners, Opera Tech Ventures, Unbound, Derayah Financial, Flat Capital, Citadel Securities Americas LLC, Altered Capital, X&
- Series C, Apr 23, 2025, $52M — National Investments Company, Portage Ventures, Unbound, 850 Management, Derayah Financial
- Series B, Aug 30, 2021, $50M — Spark Capital, Social Leverage Capital, Horizons Ventures, Portage Ventures, Eldridge Industries, Tribe Capital, Positive Sum
- Series A, Jun 30, 2021 — Elefund

## Investors

- Elefund (https://capitalatlas.ai/funds/elefund) — Series A
- Spark Capital — Series B
- Social Leverage Capital (https://capitalatlas.ai/funds/social-leverage-capital) — Series B, Series D
- Horizons Ventures — Series B, Series D
- Portage Ventures (https://capitalatlas.ai/funds/portage-ventures) — Series B, Series C, Series D
- Eldridge Industries (https://capitalatlas.ai/funds/eldridge-industries) — Series B
- Tribe Capital (https://capitalatlas.ai/funds/tribe-capital) — Series B
- Positive Sum (https://capitalatlas.ai/funds/positive-sum) — Series B
- National Investments Company — Series C
- Unbound (https://capitalatlas.ai/funds/unbound) — Series C, Series D
- 850 Management — Series C
- Derayah Financial (https://capitalatlas.ai/funds/derayah-financial) — Series C, Series D
- Bank Muscat (https://capitalatlas.ai/funds/bank-muscat) — Series D
- Endeavor Catalyst (https://capitalatlas.ai/funds/endeavor-catalyst) — Series D
- Drive Capital (https://capitalatlas.ai/funds/drive-capital) — Series D
- Kraken — Series D
- DRW Venture Capital (https://capitalatlas.ai/funds/drw-venture-capital) — Series D
- Diagram (https://capitalatlas.ai/funds/diagram) — Series D
- MUFG Innovation Partners (https://capitalatlas.ai/funds/mufg-innovation-partners) — Series D
- Opera Tech Ventures (https://capitalatlas.ai/funds/opera-tech-ventures) — Series D
- Flat Capital (https://capitalatlas.ai/funds/flat-capital) — Series D
- Citadel Securities Americas LLC — Series D
- Altered Capital (https://capitalatlas.ai/funds/altered-capital) — Series D
- X& (https://capitalatlas.ai/funds/x) — Series D