Longeye, a developer focused on AI-based investigative tools for law enforcement and the justice system, has successfully raised $5 million in seed funding, led by Andreessen Horowitz’s American Dynamism Fund. This announcement coincides with Longeye’s successful deployment of its innovative platform with the Redmond Police Department. Detectives at Redmond have already utilized Longeye’s technology to uncover previously overlooked evidence in ongoing investigations.
The company was founded by Guillaume Delepine, a former leader in go-to-market strategies at Skydio. Longeye addresses a pressing challenge in modern law enforcement: the sheer volume of digital evidence associated with criminal cases. The statistics are alarming; in 2024, only 44% of violent crimes and 16% of property crimes were solved across the nation. Additionally, a significant 70% of investigators report insufficient time to review all the digital evidence involved in their casework.
Longeye’s platform leverages artificial intelligence to efficiently analyze and prioritize extensive amounts of audio, video, and thousands of pages of documents. It adheres to strict compliance requirements set forth by the FBI, ensuring all findings are linked to verifiable source material. In its initial rollout at the Redmond Police Department in Washington, detectives uploaded over 2,000 files within just one day. Notably, the platform identified a confession-like discussion hidden in jail call recordings that had previously gone unnoticed. This breakthrough led officers to the location of a spent shell casing, effectively closing the case, illustrating the immediate operational advantages of this technology.
The seed funding round, led by Andreessen Horowitz’s American Dynamism Fund, also attracted investments from Seven Stars Capital and various strategic angel investors. Notable contributors include Adam Bry and Abe Bachrach, founders of Skydio; Seth Forsgren and Hayk Martiros, founders of Producer AI; Nate Robert, founder and CEO of Baton; Kevin Mullins, CEO of SaferMobility; and other law enforcement professionals and industry leaders.
Longeye’s platform is designed with features that cater specifically to the needs of detectives and investigators. It offers multi-format analysis, allowing users to handle diverse content such as audio, video, images, documents, and social media data. The relevance ranking feature ensures that the most critical evidence is surfaced first based on the context of each case. Furthermore, every summary from the platform links back to the original source material, ensuring verifiability.
For security and privacy, Longeye’s platform is self-hosted on AWS GovCloud, the same cloud service used by the FBI, and avoids reliance on third-party APIs. The platform also provides real-time language support, translating and transcribing content in languages such as Spanish and Mandarin. Importantly, Longeye is committed to privacy by design, ensuring that its models do not train on any case data and that each investigation remains fully isolated. The rapid search functionality enables users to query thousands of hours of content and receive results in seconds, dramatically speeding up the investigative process.
How the funding will be used: With the funding from this seed round, the company intends to further enhance its product, expand its engineering team, and deploy its services to additional law enforcement agencies. And Longeye plans to develop tailored solutions for prosecutors and public defenders, including a commitment to provide its AI services free of charge to public defenders’ offices, reinforcing its dedication to balanced justice in the legal system.
KEY QUOTES:
“America is desperate for a safer society that still protects civil liberties, but we will never get that until the justice system moves at the speed of crime. The biggest lever we have to deter crime isn’t the severity of punishment—research consistently shows it’s the certainty of being caught that prevents criminal behavior. When criminals believe they’ll be caught and prosecuted, they don’t commit the crime in the first place.”
Guillaume Delepine, founder and CEO of Longeye
“The explosion of digital evidence represents both an opportunity and a crisis for law enforcement. We’ve backed companies like Skydio, Flock Safety, and Prepared 911 because we believe technology can fundamentally improve public safety. Longeye’s approach—combining advanced AI with rigorous verification standards—enables investigators to leverage this data effectively while maintaining the integrity required for criminal proceedings.”
“Law enforcement has always faced impossible trade-offs—you can be fast or you can be thorough, you can cast a wide net or preserve privacy, you can solve cases or respect resource constraints. AI changes that calculus entirely. Now we can process massive datasets while being more targeted about what investigators actually review. We can finally move faster without sacrificing truth or privacy.”
David Ulevitch, General Partner at Andreessen Horowitz
“In Redmond, we face the same challenges as larger jurisdictions, but with fewer people to manage the workload. As a premier law enforcement agency, Redmond is committed to staying ahead of the curve when it comes to public safety technology. Longeye has already proven its value, cutting months off investigations, surfacing leads we might have missed, and even closing gaps in a cold-case homicide. Every hour Longeye gives back to my detectives is an hour invested in solving cases, supporting victims, providing closure and strengthening community trust.”
Chief Darrell Lowe, Redmond Police Department
