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§ Private Profile · San Francisco, CA, USA
SentiLink is a technology company.
SentiLink develops advanced fraud and risk solutions for financial institutions. It offers an API-based product to prevent identity fraud, detecting synthetic identity fraud at the application stage. The company integrates technology and domain expertise, employing machine learning models, analyzing patterns to bolster institutional security.
Naftali Harris and Max Blumenfeld founded SentiLink in 2017. Their insight stemmed from the critical threat of synthetic identity fraud, an underserved area in financial services. The founders identified the need for a dedicated platform to combat this complex fraud vector, leveraging their expertise to build a targeted solution.
Financial institutions use SentiLink’s offerings to safeguard against fraudulent applications. The company’s mission is to foster confidence in digital interactions through robust identity verification and proactive fraud prevention. SentiLink envisions a future where institutions and individuals transact securely, minimizing losses, protecting data via intelligent risk management.
SentiLink has raised $84.0M across 2 funding rounds.
SentiLink has raised $84.0M in total across 2 funding rounds.
SentiLink is a San Francisco-based technology company founded in 2017 that specializes in fraud detection and identity verification solutions, primarily targeting synthetic fraud, identity theft, and first-party fraud.[1][2][5] It offers a suite of products including real-time APIs, risk analyst tools, and machine learning models that help financial institutions, fintechs, lenders, and other businesses prevent fraud during customer onboarding for deposit accounts, credit cards, loans, buy-now-pay-later services, and more, serving hundreds of US institutions and millions of consumers daily.[1][3][4][5] By combining human-reviewed insights with proprietary data, SentiLink empowers clients to approve legitimate customers confidently while minimizing losses, with expansions into areas like eCBSV usage and compliance solutions.[1][2]
SentiLink was co-founded in 2017 by early employees from online lender Affirm: the CEO (first data scientist who later led Risk Decisioning) and Max (head of Risk Operations).[1] At Affirm, they collaborated closely—operations identified emerging fraud vectors, while decisioning built automated models to counter them—revealing a widespread but overlooked industry problem: synthetic fraud, where fake identities are created using real and fabricated data.[1] This insight prompted them to launch SentiLink, starting with synthetic fraud detection and expanding to ID theft, first-party fraud, and other risks; a pivotal moment was becoming the first to use and offer eCBSV (electronic Consent Based Social Security Number Verification).[1] Early traction grew to over 300 US institutions within five years, supported by a culture of weekly company-wide fraud case reviews to stay ahead of evolving tactics.[1]
SentiLink rides the surge in digital financial services and identity fraud, where synthetic identities—blending real and fake data—exploit onboarding gaps in fintech, lending, and beyond, amplified by rising online transactions post-pandemic.[1][2][5] Its timing aligns with regulatory pressures (e.g., CIP enhancements) and market forces like escalating fraud losses in deposit accounts, auto loans, and BNPL, where traditional checks fail against sophisticated rings.[2][3][5] By enabling safer scaling for fintechs and banks, SentiLink influences the ecosystem through better approval rates, reduced bad debt, and shared intelligence, fostering trust in high-growth sectors like digital wallets and flexible financing.[1][3]
SentiLink's momentum—spanning 300+ clients and innovations like AI-driven CIP—positions it for expansion into adjacent markets like tenant screening, device financing, and international fraud challenges, potentially accelerating via pre-IPO liquidity or partnerships.[1][2][3] Trends like AI fraud evolution and stricter identity regs will shape its path, demanding continued human-AI fusion to outpace criminals. Its influence may grow as the go-to fraud partner, enabling more confident transactions in a riskier digital economy—echoing its Affirm roots in turning operational insights into industry-scale defenses.[1][5]
SentiLink has raised $84.0M across 2 funding rounds. Most recently, it raised $70.0M Series B in August 2021.
SentiLink has raised $84.0M in total across 2 funding rounds.
SentiLink's investors include Craft Ventures, 305 Ventures, 9Yards Capital, Accel, Adjacent, Archetype, Arrive, Benchmark, Bora&Sons, Bullpen Capital, Casa Verde Capital, Converge Venture Partners.