Fifth Down Capital
159 Walpole Street, Dover, MASSACHUSETTS, 02030, United States
Overview
Fifth Down primarily invests in early and growth stage companies within the technology and consumer sectors.
- Total investments
- 19
- Lead investments
- 5
- Investments · 12mo
- 7
- Active investors
- 5
Sector focus
- Finance
- Financial Services
- Venture Capital
Investment portfolio
- Databento
Participated · Series B · Jul 2026
Databento provides a unified API delivering real-time and historical market data across futures, options, and equities, owning the market data stack end-to-end and colocating servers at exchanges to capture data directly. The company emphasizes performance, reliability, and a developer-friendly experience, and reports more than doubled active API users in recent months. Financially, Databento reached profitability with 24 employees, grew revenue 6.65x year over year, and has maintained over 97% enterprise logo retention since inception. It plans to expand its infrastructure footprint to more than 20 data centers worldwide and has secured over 100 petabytes of additional storage capacity. Databento aims to broaden coverage across asset classes and geographies as part of its growth strategy.
- Peregrine Technologies
Led · Series D · Jun 2026
Peregrine Technologies builds an AI-driven platform that connects police records, 911 logs, permit databases, sensor feeds, and other government data to make an agency’s institutional data searchable and usable in real time without collecting or owning that data. The company emphasizes role-based access controls, full audit trails, and that it does not use facial recognition. Peregrine serves more than 400 agencies and organizations representing roughly 125 million people across North America and expects to be working with close to 1,000 cities by year-end. Management has declined to share revenue figures, but says the customer base has more than doubled over the past year. The founders, CEO Nick Noone and CTO Ben Rudolph, previously held roles at Palantir and humanitarian and global health data organizations. Peregrine plans to use new capital for product development, hiring across engineering and implementation, and international expansion while preparing internal operations to be IPO-ready.
- Chapter
Participated · Series E · Apr 2026
Chapter offers an AI-native platform that powers licensed advisors to deliver personalized, impartial Medicare plan recommendations and help seniors maximize benefits. The company reviews every Medicare plan nationwide and has deployed products such as the most accurate provider directory and a prescription cost calculator for Medicare. Chapter reported rapid commercial traction in 2025, growing revenue threefold and surpassing $100 million in annual recurring revenue while maintaining flat corporate headcount. It is expanding its product set to launch additional financial products and to help members save across more of their spending. The business positions itself as the leading Medicare navigation option nationwide and partners with organizations to assist seniors with retirement healthcare decisions.
- Cape
Participated · Series C · Mar 2026
Cape has built a carrier-grade mobile stack that operates its own mobile core and SIMs while leasing tower access as an MVNO, embedding privacy features at the network layer. Its product set includes privacy-enhancing capabilities such as Identifier Rotation, which changes SIM IDs daily to disrupt tracking, and Secondary Numbers to host multiple phone numbers on a single SIM. Since its 2022 founding, Cape has been adopted by U.S. national security professionals, enterprise executives, journalists, activists, and privacy-conscious consumers. The company partners with cybersecurity research institutions including the Air Force Research Laboratory and the University of Maryland. Cape recently declared its service generally available nationwide and has raised $191 million to date to support expansion and continued R&D.
- Northslope
Participated · Series A · Jan 2026
Northslope develops and deploys AI application suites that sit on top of Palantir AIP, Foundry, and Gotham, giving enterprises bespoke functionality without the cost or delays of fully custom builds. Created by former Palantir Forward Deployed Engineers, the platform lets organizations such as healthcare providers, aerospace manufacturers, and renewable-energy producers tackle domain-specific problems like early cancer detection, rocket manufacturing, and grid optimization. The company combines an "applied AI" approach with a Forward Deployed Engineering model, embedding closely with customers to tailor solutions while retaining SaaS-like speed and maintainability. In the past year Northslope delivered production outcomes across multiple sectors and expanded revenue nearly 7×, signaling strong early commercial traction. Leadership believes one-size-fits-all enterprise software is obsolete and that AI must amplify each customer’s competitive edge. Looking ahead, the fresh capital will be used to scale the engineering model and broaden the firm’s Palantir-native application catalog. Northslope operates globally with hub offices in New York, London, and Denver.