SentiLink

Fintech company using AI and expert intelligence to detect synthetic identity fraud and identity theft for financial institutions.

Services Fintech & Identity Fraud Detection

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San Francisco, CA HQ

51-200 company size

2017 founded

What is SentiLink?

SentiLink is a fintech company specializing in identity fraud detection for financial institutions and lenders. The platform uses proprietary machine learning models and an in-house team of risk analysts to detect synthetic identity fraud — where criminals create fake identities using a combination of real and fabricated information — as well as traditional identity theft and account takeover at the point of application. SentiLink's products include Synthetic Scores for detecting fabricated identities, identity theft detection tools, and expert intelligence from human analysts who continuously refine the company's models. Co-founded in 2017 by Naftali Harris (CEO) and Maxwell Blumenfeld (COO) — both former early employees at Affirm where Harris was the first data scientist — SentiLink has raised approximately $85 million from Andreessen Horowitz, Craft Ventures, and NYCA Partners.

Mission & values

Protect financial institutions from identity fraud by combining advanced machine learning with human expert intelligence to detect synthetic identities and identity theft at the point of application.

Leadership

Naftali Harris

Co-Founder & CEO

Former first data scientist at Affirm, where he led the Risk Decisioning team. Co-founded SentiLink in 2017 to tackle synthetic identity fraud using machine learning and expert intelligence.

Maxwell Blumenfeld

Co-Founder & COO

Former Risk Operations lead at Affirm. Co-founded SentiLink in 2017 to build the industry-leading identity fraud detection platform for financial institutions.

Funding

StageSeries B

Investors

Andreessen Horowitz (a16z) Craft Ventures NYCA Partners

Frequently asked questions

What does SentiLink do?

SentiLink detects identity fraud for financial institutions and lenders. Its platform identifies synthetic identities, identity theft, and account takeover at the point of application using proprietary ML models and expert human analysts.

What is synthetic identity fraud?

Synthetic identity fraud is when criminals create fake identities by combining real and fabricated information (e.g., a real SSN with a fake name) to build credit histories and apply for loans or accounts.

How does SentiLink detect fraud?

SentiLink combines proprietary machine learning models (Synthetic Scores) with an in-house team of risk analysts who review applications and continuously refine the algorithms — a blend of AI and expert intelligence.

Who uses SentiLink?

Financial institutions, banks, credit unions, and lenders use SentiLink to prevent identity fraud at the point of account opening and credit application.

How much funding has SentiLink raised?

SentiLink has raised approximately $85 million in total funding, including a $70 million Series B in 2021, backed by Andreessen Horowitz, Craft Ventures, and NYCA Partners.