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Tagman

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Leading global Tag Management System (TMS), Marketing Data, and Marketing Attribution provider. Acquired by Ensighten

Duluth, United StatesFounded 2007Marketing
Valuation $10–25M Last recorded · 2013
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About Tagman

Established in London in 2007 by co-founders Jon Baron and Paul Cook, TagMan carved out a significant niche in the burgeoning digital marketing landscape as a pioneering tag management system (TMS). The founders identified a critical market gap for a unified solution to manage the numerous marketing and analytics tags that were becoming cumbersome for website owners to handle individually. This realization led them to create a platform that essentially invented the tag management sector.

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TagMan's core business revolved around its platform that allowed digital marketers and e-commerce professionals to deploy, manage, and unify data from various third-party tags on their websites. This streamlined operations, improved website performance, and provided a clean, unified layer of first-party and third-party data. The company's services were crucial for clients to analyze the customer's journey to purchase and understand advertising impact through tools like a visual insights suite, marketing attribution, data optimization, and conversion tracking. Serving over 400 brands globally, its client roster included major enterprises like Virgin Atlantic, Marriott, John Lewis, Spotify, and DIRECTV.

The company's growth was financed through several funding rounds, accumulating over $13.6 million. Key investors included Greycroft, Inovia Capital, SVB, and angel groups like Cambridge Angels and London Business School Enterprise 100. The first funding round occurred in February 2010, followed by a Series A in 2011 and a subsequent $5 million round in 2013 to fuel global expansion. This financial trajectory culminated in its acquisition by Ensighten in March 2014, a move that established the combined entity as a market share leader in the enterprise data and tag management space.

Source: Dealroom company data

At a glance

Founded
2007
Headquarters
Duluth, United States
Sector
Marketing

Investors

4 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed1 investor entered at this stage

  • Cambridge Angels

Series A3 investors entered at this stage

Team profiled 25 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇺🇸 United States · Duluth HQ
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Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Tagman on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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