Company Overview
About SentiLink
SentiLink is a fraud prevention and identity intelligence company founded in 2017 by Naftali Harris and Maxwell Blumenfeld and headquartered in San Francisco, California. The company specializes in detecting and blocking synthetic identity fraud — one of the fastest-growing forms of financial crime, in which fraudsters combine real Social Security numbers with fabricated personal information to create fake identities that pass traditional verification checks. SentiLink''s AI models are trained on large datasets of financial application behavior to distinguish genuine applicants from synthetic constructs in real time, enabling financial institutions to approve more legitimate customers while blocking fraud before accounts are opened.
Business Model & Competitive Advantage
SentiLink has raised $85 million in total funding, including a $70 million Series B led by Craft Ventures, with Andreessen Horowitz and NYCA Partners among its investors. The company works with over 100 financial institutions — banks, credit unions, and fintech lenders — and reports catching more than 7,000 instances of synthetic fraud per day across its partner network. Its core product, the Synthetic Fraud Score, integrates into loan origination and account opening workflows via API, returning a real-time risk score that financial institutions use to approve, flag, or decline applications.
Competitive Landscape 2025–2026
SentiLink has expanded beyond its original synthetic fraud focus to offer a broader identity intelligence suite covering identity theft, first-party fraud, and identity verification. The company has published extensive fraud benchmarking data, analyzing hundreds of millions of financial applications to quantify fraud trends and help FI partners understand their exposure relative to the industry. SentiLink competes with identity fraud solutions from LexisNexis Risk Solutions, TransUnion, Experian, and point-solution vendors like Socure and Alloy in the financial identity verification and fraud prevention stack.
Key Differentiators
Strong Challenger
SentiLink is an established challenger with significant market presence and competitive offerings in Financial Services.
Frequently Asked Questions
Estimated Visibility Trend (Beta)
Simulated 8-week rolling score
Based on estimated brand signals. Historical tracking coming soon.
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