Top Fraud Detection Startups in 2027

Straddle is an early stage startup building the payments infrastructure required to power the next generation of companies and software – all built on modern banking rails. Our unified API abstracts away fragmented systems – from identity to open banking – to enable seamless account-to-account payment experiences at scale. We’re building a future where money moves at the speed of data.

Fingerprint empowers developers to stop online fraud at the source. We work on turning radical new ideas in the fraud detection space into reality. Our products are developer-focused and our clients range from solo developers to publicly traded companies. Some of our customers include: Target, checkout.com, coinbase and Yahoo! just to name a few. We are a globally dispersed, 100% remote company with a strong open-source focus. Our flagship open source project is Fingerprint (16K stars on GitHub). We have raised $44M and are backed by Craft Ventures (previously invested in Tesla, Facebook, Airbnb), Nexus VP (previously invested in Postman, Hasura) and Uncorrelated Ventures (previously invested in Redis, Rollbar & Gradle). Our highly-talented staff have: attended a top 10 US university, extensive startup experience, been finalists in international competitions, and worked at and with well-known tech companies. See what it is like from our Glassdoor reviews.

Infrawatch is building the world’s first real-time adversary infrastructure intelligence platform - turning the global internet into a live, high-fidelity map of malicious networks, proxies, and command-and-control servers before they’re ever used in attacks. Every day, Infrawatch scans the entire public IPv4 and IPv6 space, generating over 150 million actionable indicators. Our proprietary rule engine and enrichment pipeline transform raw internet telemetry into curated, analyst-ready intelligence that powers fraud prevention, threat detection, and national-scale defence. Existing tools are fragmented: broad but shallow, or narrow but blind. Infrawatch unifies them. We give defenders visibility and attribution across all categories of adversary infrastructure, enabling them to block threats at the infrastructure stage - not after the breach. Our mission is simple but urgent: to be the infrastructure intelligence source of truth that keeps enterprises, governments, and critical systems ahead of adversaries. Built by defenders, for defenders, Infrawatch delivers unmatched coverage, precision, and speed. From cybersecurity giants to government agencies, organisations rely on Infrawatch’s live data feeds, APIs, and platform to identify malicious infrastructure, prevent fraud, and accelerate investigations. We care deeply about clarity: in data, in design, and in purpose. Our analyst-first platform makes billions of events feel effortless to explore, with modern workflows and visualizations that help teams see faster, decide smarter, and act sooner. We’re a small, focused, and remote-first team of engineers and researchers obsessed with quality, performance, and craft. Together, we’re building the backbone of proactive defence, a system that turns chaos into signal and helps the world beat the adversary.

We're a deep-tech product company building verification and trust systems for the modern world. Our products solve real problems in hiring and logistics by creating transparent, secure, and reliable infrastructure that protects both businesses and individuals.