• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Some Fortune Crypto pricing data is provided by Binance.
CompaniesBlockchain

Blockchain payments company Halliday raises $20 million from Andreessen Horowitz

By
Catherine McGrath
Catherine McGrath
Crypto Fellow
Down Arrow Button Icon
By
Catherine McGrath
Catherine McGrath
Crypto Fellow
Down Arrow Button Icon
March 18, 2025, 9:00 AM ET
Halliday raises $20 million from Andreessen Horowitz in a Series A
Halliday raises $20 million from Andreessen Horowitz in a Series ACourtesy of Halliday

Halliday, a startup that helps financial institutions automate services with blockchain and AI technology, has raised $20 million from venture capital giant Andreessen Horowitz.

Recommended Video

The company works with charter banks, payment service providers and other financial institutions that are interested in blockchain technology to help accelerate their entrance into the space by making it easier to design financial workflows, CEO and co-founder of Halliday Griffin Dunaif told Fortune. 

Financial workflows—an organized sequence of steps required to move funds from one place to another—are integral to any company that handles money for their clients. In the crypto world, establishing these workflows requires engineers to program smart contracts, which can be a slow and arduous process, Dunaif said. 

With Halliday’s Agentic Workflow Protocol, companies can easily connect services like verifying a transaction or issuing a payment, into one cohesive workflow. “It’s an engine that lets you stitch together services into workflows so that they can be automated,” Dunaif said. 

Additionally, developers can implement agentic AI—a type of AI model that can solve problems and execute actions with limited supervision—within their workflows to automate decision-making. “We want to bring blockchain up to the agentic era, because no software will not be agentic as these technologies mature,” he said. 

The San Francisco-based company is currently taking submissions for its early access program that will be rolled out during the second quarter. Since announcing the program in late February, Dunaif says the company has received over 11,000 requests to access the product. 

Other crypto companies also work with financial institutions to make their payment systems more efficient. Consensys, a blockchain company founded in 2014, has a product called the CodeFi Blockchain Application Suite, which includes a service that helps financial institutions automate workflows. 

Once Agentic Workflow Protocol is fully available, Halliday will make money from it by charging customers based on how much computing power their workflow requires. 

The company declined to disclose its valuation in its latest funding round. It plans to use the money raised to accelerate deployment of the product and expand the team. 

Other investors in this latest round included Avalanche Blizzard Fund, Credibly Neutral, and Alt Layer. Halliday previously raised $6 million from Andreessen Horowitz in 2022.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
By Catherine McGrathCrypto Fellow
LinkedIn iconTwitter icon

Catherine McGrath is a crypto fellow at Fortune.

See full bioRight Arrow Button Icon

Latest in Companies

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Companies

Exclusive: Crypto venture firm CMT Digital raises $136 million for fourth fund
CompaniesVenture Capital
Exclusive: Crypto venture firm CMT Digital raises $136 million for fourth fund
By Ben WeissNovember 5, 2025
6 months ago
A Ferrari race car on a racetrack
CompaniesCryptocurrency
Ferrari to release crypto token to let wealthy fans take part in 499P auction
By Carlos GarciaNovember 3, 2025
6 months ago
Michael Saylor on stage at a Bitcoin conference.
CompaniesBitcoin
Michael Saylor boosts yield, says Strategy is at an ‘inflection point’
By David Pan, Judy Lagrou and BloombergOctober 30, 2025
6 months ago
Crypto founders are getting very rich, very fast—again
CompaniesCryptocurrency
Crypto founders are getting very rich, very fast—again
By Jeff John RobertsOctober 30, 2025
6 months ago
A Mastercard credit card peeking out from a pocket.
CompaniesMastercard
Exclusive: Mastercard poised to acquire crypto startup Zerohash for nearly $2 billion, sources say
By Ben Weiss and Leo SchwartzOctober 29, 2025
6 months ago
Three men stand in front a white backdrop.
CompaniesCryptocurrency
Exclusive: Startup Hercle raises $10 million to build out stablecoin-based global money transfers
By Carlos GarciaOctober 29, 2025
6 months ago

Most Popular

China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
North America
China dominates the world's lithium supply. The U.S. just found 328 years' worth in its own backyard
By Jake AngeloApril 30, 2026
1 day ago
Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
Personal Finance
Scott Bessent on financial literacy: 'it drives me crazy' to see young men in blue-collar construction jobs playing the lottery
By Fatima Hussein and The Associated PressMay 1, 2026
6 hours ago
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
Conferences
Accenture's Julie Sweet blew up 50 years of company history. She says the hardest part is still ahead
By Nick LichtenbergApril 29, 2026
2 days ago
The U.S. economy is booming — just not where 50 million Americans live
Commentary
The U.S. economy is booming — just not where 50 million Americans live
By Derek KilmerMay 1, 2026
10 hours ago
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
Success
Apple cofounder Ronald Wayne—whose stake would be worth up to $400 billion had he not sold it in 1976—says that at 91, he has no regrets
By Preston ForeApril 27, 2026
4 days ago
Exclusive: America's largest Black-owned bank launches podcast with mission to unlock hidden shame holding back generational wealth
Banking
Exclusive: America's largest Black-owned bank launches podcast with mission to unlock hidden shame holding back generational wealth
By Nick LichtenbergApril 29, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.