# FatTail

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/fattail

- Industry: Software
- Headquarters: Calabasas, US
- Website: www.fattail.com
- Total disclosed funding: $3.5M
- Latest round: Series A (Oct 15, 2008)
- Investors on record: 1

## About

FatTail, Inc. is a US-based company specializing in advanced advertising technology, providing a platform that merges programmatic advertising efficiency with direct sales transparency for over 10,000 publishers and advertisers.Founded in 2001 and headquartered in Calabasas, US, FatTail, Inc. offers a sophisticated advertising technology platform. The company has engaged in 2 significant funding deals, with the latest being a Series A round in which they raised USD 3.50 mn from Fuse Capital. The most recent deal was recorded on March 10, 2025, when Chartbeat, Inc., a portfolio company of Cuadrilla Capital, acquired FatTail, Inc. from Fuse Capital. Financial terms were not disclosed.FatTail specializes in providing an advanced advertising technology platform known as AdBook+, which integrates the efficiency and scalability of programmatic advertising with the transparency and control inherent in direct advertising sales. This platform has been designed to accommodate the unique needs of over 10,000 publishers and their advertisers, allowing them to manage various types of advertising media, including audio, events, broadcast, display, digital out-of-home (DOOH), video, connected TV (CTV), and print. Released in 2019, AdBook+ has facilitated the digital transformation of ad operations, enabling users to transition from manual processes to automated systems that streamline inventory management and approvals. The company’s clientele spans various geographical markets including North America, Europe, and Asia, serving diverse industries such as media, retail, and business publishing.FatTail generates revenue through a structured model that primarily includes subscription partnerships and service agreements with its clients, resulting in a steady flow of transactions. Clients utilize the AdBook+ platform to manage their advertising assets, which encompasses access to inventory and reporting capabilities that enhance operational efficiency. Revenue is derived from partnerships where publishers and advertisers engage in transactions facilitated by the platform, allowing for seamless execution of advertising deals. The flagship service, AdBook+, is geared towards B2B transactions, providing tailored solutions to meet industry demands while driving performance and growth across its client base. Pricing structures are developed to align with the specific features and services utilized by clients, ensuring flexibility and customization in their advertising operations.The acquisition of FatTail, Inc. by Chartbeat, Inc. is expected to enhance the capabilities of Chartbeat’s media operations platform. This strategic move aligns with FatTail’s goals of scaling its product offerings and expanding into new markets. With the recent funding, the company aims to further develop its technology and explore additional geographic regions for market penetration. Specific target areas for expansion include Southeast Asia and Europe by the end of 2025.

## Funding rounds

- Series A, Oct 15, 2008, $3.5M — Fuse Capital

## Investors

- Fuse Capital — Series A