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Hadrius

YC W23

New York City, US · Founded 2023 · 80 employees · Hiring · 15 known investors

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Hadrius provides AI-powered compliance automation software for financial services firms, helping compliance teams automate oversight, reduce false positives, and meet SEC and FINRA requirements with enterprise-grade security.

Also known as Quantbase Investments, Inc. · Quantbase

AI & Machine LearningEnterprise SoftwareFintechSaaSB2BComplianceRegtechAIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W23)

Hadrius was founded in 2023 by Thomas Stewart, Allen Calderwood, and Som Mohapatra.

TSThomas Stewart
Thomas StewartCEO & CofounderHe has founded two prior companies and completed one exit.
ACAllen Calderwood
Allen CalderwoodCo-Founder & CTOAllen Calderwood worked at Google and Chime before becoming CTO at Quantbase, and is now CTO at Hadrius (W23).
SMSom Mohapatra
Som MohapatraFounderSom Mohapatra left college to found Quantbase, an investment firm that grew to substantial assets under management before being acquired by a competitor. He now leads Hadrius, which builds compliance software for financial services firms.
JA
James AntolinoFounding GTM
BZ
Brian ZouVice President of Finance
BH
Ben HuberManager of Customer Experience
AB
Anushriya BhardwajFounding Designerformer
TS
Tejas SanghaviDirector of Engineeringformer
MM
Matt MyrickFounding Senior SREformer

Investors · 15

Attack Capitallisted by Attack CapitalBrooklyn · $150K

How we know: Attack Capital's portfolio page · Y Combinator's founder network · Not right? Tell us

CRV (Charles River Ventures)listed by CRV (Charles River Ventures)Bay Area · $250K – $5M

How we know: CRV (Charles River Ventures)'s portfolio page · a partner's Signal profile · Not right? Tell us

Dorm Roomlisted by Dorm RoomBrooklyn · $90K – $500K

How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us

Lynett Capital Partnerslisted by Lynett Capital PartnersJupiter

How we know: fintech.global · Y Combinator's founder network · Not right? Tell us

Seraph Grouplisted by Seraph GroupMilton · $50K – $2M

How we know: Seraph Group's portfolio page · Y Combinator's founder network · Not right? Tell us

Unpopular Ventureslisted by Unpopular VenturesMiami · $100K – $500K

How we know: fintech.global · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us

MyAsiaVCreportedSeattle

How we know: Y Combinator's founder network · Not right? Tell us

Roadrunner VenturesreportedAlbuquerque · $1M

How we know: Y Combinator's founder network · Not right? Tell us

Sandhill (ex Stonks)reportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Singularity Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Soleil CapitalereportedNew York

How we know: Y Combinator's founder network · Not right? Tell us

WefunderreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Also in the syndicate · 2

Dorm Room FundSingularity Capital

Funding

SEC filings, press & company announcements

$22M disclosed across 1 of 2 rounds · 2023–2026

Source: company announcements and press reports — follow each round's link for the claim.

Founder mafia

2 people who came through Hadrius went on to found or lead other companies.

Jonathan MirandaFounding Software EngineerFounded CompyleMark NazzaroFounding Software EngineerFounded Compyle

Related companies · 6

LuthorLuthor automates compliance review for marketing campaign assets, flagging regulatory and policy issues before submission to compliance teams. The product serves regulated marketing teams in financial services and other compliance-heavy industries.
Arva AIArva provides financial crime compliance software for compliance teams in financial services, helping them work more efficiently on detection and monitoring tasks.
FlagrightFlagright provides transaction monitoring software for financial institutions to detect and manage suspicious activity. The platform serves banks and financial institutions across multiple countries.
SmartAssetFisher Investments is a global money management and financial advisory firm that provides portfolio management, financial planning, and retirement planning services primarily to high-net-worth individuals and institutional clients. The firm manages investments across equities, fixed income, and blended accounts using an active, forward-looking investment approach.
ReadilyReadily is an AI-powered compliance platform for healthcare organizations that automates regulatory analysis, audit management, and policy updates. It helps healthcare teams stay compliant by connecting regulatory changes to policies and operations in a single system.
ComplifComplif simplifies operational processes and reduces administrative burden for financial services institutions, enabling them to focus on growth and innovation.

Companies working in the same space as Hadrius.

Legal entities · 1

corporate structure
Quantbase Investments, Inc.

In the news

Hadrius secures $27m to scale agentic compliancefintech.global · Jul 2026Hadrius Raises $27M in Seed and Series A Fundingfinsmes.com · Jul 2026Hadrius Raises $27 Million to Build Agentic Compliance Infrastructureprnewswire.com · Jul 2026FinTech firm Hadrius nets $2m seed round for AI-powered SEC compliancefintech.global · Sep 2023Hadrius - SEC regulatory compliance powered by AIycombinator.com · Mar 2023

Frequently asked questions

What does Hadrius do?
Hadrius provides AI-powered compliance automation software for financial services firms, helping compliance teams automate oversight, reduce false positives, and meet SEC and FINRA requirements with enterprise-grade security.
Who founded Hadrius?
Hadrius was founded by Thomas Stewart, Allen Calderwood, Som Mohapatra in 2023.
Who are Hadrius's investors?
Hadrius's investors include Y Combinator, Attack Capital, CRV (Charles River Ventures), Dorm Room, Lynett Capital Partners, Seraph Group, Unpopular Ventures, MyAsiaVC and 5 more.
How much funding has Hadrius raised?
Hadrius has disclosed $22M raised across 1 of its 2 known rounds.
Where is Hadrius headquartered?
Hadrius is headquartered in New York City, US.