What Fyllo does

Fyllo is a Chicago-based marketing agency (operating under Proteus Enterprises, LLC) that provides digital marketing, media planning and buying, and data solutions services to enterprise and mid-market brands. The company was originally founded in 2019 as a registered data broker; in early 2025, current management acquired the Fyllo brand and Client Services business line, and the company no longer operates a data broker business. Fyllo now monetizes through agency fees and media buying commissions on client advertising spend, sold via direct enterprise sales with custom quote-based pricing and multi-year contracts.

The platform is organized around four integrated service modules: Audience Targeting (pre-built taxonomized segments and custom audiences built on first-party and purchase data), Contextual Targeting (semantic NLP analysis of 2.5 billion+ pages monthly to reach 1 billion+ stable user profiles without cookies), Contextual Audience Extension (predictive modeling for look-alike discovery), and Media Strategy & Planning (omnichannel planning, creative, activation, and online/offline measurement). Underlying technology is a semantic analysis and behavioral signal processing stack designed to operate in a cookie-deprecated environment.

Named customers span CPG/Beverage (Poland Spring, The Farmer's Dog, Liquid Death, Recess, Zippo, Happi, Deer Park, Luxardo), Cannabis (Verano, 1906 New Highs, Lume, JARS Cannabis), Pharma/Health (Dexcom), and Fitness (CITYROW), with logos including TAG Heuer and Harley Davidson. Revenue, funding, and headcount beyond the 11–50 band are not publicly disclosed.

Name

Fyllo

Legal name

Proteus Enterprises, LLC

Website

https://hellofyllo.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Fyllo is a Chicago-based B2B marketing agency that delivers audience targeting, cookie-less contextual targeting, and media planning services to enterprise brands in CPG, cannabis, pharma, and fitness verticals, using proprietary semantic NLP and behavioral signal technology.

Ownership category

akta.pro rank

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Digital Marketing Services: Fyllo provides digital marketing, media planning and buying, and data solutions services to clients. Revenue is generated through agency fees and media buying commissions on client advertising spend.
2. Data Solutions: Audience targeting solutions leveraging proprietary datasets and contextual platform capabilities, sold as part of integrated marketing campaigns.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

Fyllo is a marketing agency that combines progressive audience datasets with a proprietary contextual targeting platform to deliver digital marketing, media planning and buying, and data solutions to enterprise brands. The company provides four integrated service modules: Audience Targeting (pre-built and custom segments), Contextual Targeting (cookie-less semantic targeting), Contextual Audience Extension (look-alike modeling), and Media Strategy & Planning (omnichannel campaign execution and measurement).

Product overview

Fyllo is a marketing agency providing digital marketing, media planning and buying, and data solutions services. The platform combines progressive audience datasets with the world's most comprehensive contextual targeting platform, offering a unified architecture with four integrated service modules: (1) Audience Targeting for precision consumer identification using pre-built or custom segments built on first-party data, purchase data, and semantic topics; (2) Contextual Targeting leveraging semantic NLP to scan 2.5 billion+ pages monthly and reach audiences without cookies in relevant environments; (3) Contextual Audience Extension using predictive modeling to discover look-alike audiences and related pages; and (4) Media Strategy & Planning providing expert execution across planning, creative, activation, and measurement. The four modules work together to help advertisers overcome privacy challenges, optimize media activation, and accurately measure campaign success.

Differentiator

Problem solved

Functional benefit

Products and services

• Audience Targeting Precision audience targeting service offering pre-built taxonomized segments and custom audience creation based on first-party data, purchase data, and semantic topics, using modeling techniques for advertisers.
• Contextual Targeting Privacy-safe contextual advertising service that scans 2.5 billion+ pages monthly using semantic NLP to understand content meaning and reach 1 billion+ stable user profiles without cookies.
• Contextual Audience Extension Predictive modeling service that transforms first-party data into scalable digital campaigns by finding look-alike audiences and discovering related pages based on semantic similarities.
• Media Strategy & Planning Expert-led media service covering omnichannel campaign strategy, creative development, activation, and measurement including brand lift, CTR, ROAS, store visits, and visitation lift attribution for advertisers.

Quantifiable outcome

• +205% consumer reach for ABInBev campaign
• +8 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• GumGum: Contextual AI advertising company using computer vision and natural-language processing to analyze page content and place contextually relevant ads. Directly comparable to Fyllo's semantic-NLP contextual targeting stack and similar brand-safety and privacy-safe positioning for enterprise advertisers.
• Adform: Independent full-stack adtech platform combining a DSP, DMP, and contextual tools with a focus on cookieless and privacy-first advertising in Europe. Comparable full-funnel programmatic + audience-targeting play, though Adform is largely self-serve platform rather than managed agency.
• Seedtag: AI-driven contextual advertising platform using NLP to read page content and serve contextually matched ads without third-party cookies. Highly comparable technology thesis and go-to-market (cookie-less, semantic, brand-safe targeting) though it skews more EMEA while Fyllo is US-anchored.
• StackAdapt: Programmatic native and display advertising platform with strong contextual targeting and audience modeling capabilities serving agencies and brands. Comparable mid-market programmatic + data-driven targeting offering, with similar multi-channel activation and measurement scope.
• Zeta Global: Public marketing technology company combining a proprietary identity/data graph with media activation and agency-style campaign services. Closely comparable to Fyllo's blend of first-party-data-powered audience targeting plus end-to-end media planning and buying for enterprise brands.
• Permutive: Privacy-first audience targeting platform built for publishers and brands that emphasizes on-device, cookie-less targeting using first-party data. Shares Fyllo's strategic positioning around contextual/behavioral signals as a cookie-deprecation solution, with similar emphasis on enterprise publishers and CPG advertisers.
• MediaMath: Independent programmatic DSP with audience and contextual targeting capabilities serving agencies and brands. Directly comparable to Fyllo on the buy-side stack, though MediaMath is a pure self-serve platform while Fyllo is managed-service-led.

Broad incumbents

• The Trade Desk: Largest independent demand-side platform with deep contextual, audience, and identity offerings plus extensive data integrations. Operates in the same buy-side ecosystem as Fyllo (programmatic, contextual, cookie-less) but at vastly greater scale and with a self-serve platform model rather than managed-service agency.
• LiveRamp: Data connectivity and identity-resolution platform underpinning cross-channel audience targeting and measurement. Foundational data layer comparable to the audience graph Fyllo leverages; broader portfolio (RampID, Data Collaboration) but no managed-service agency offering.
• DoubleVerify: Public ad verification and analytics company whose contextual categorization and brand-safety tech underpins much of the programmatic ecosystem. Adjacent to Fyllo's semantic content analysis, but DoubleVerify is primarily an enablement/measurement layer rather than an activation agency.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/hellofyllo

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Fyllo