Insights

Digital Content Focus Holler specializes in creating engaging digital entertainment strategies that help brands build strong online followings, indicating opportunities to offer innovative content marketing and social media amplification services.

Growing Geographic Presence With established offices in London and planned expansions to Chicago and Silicon Valley, Holler is positioning itself within major North American markets, creating potential for collaborations on large-scale digital campaigns.

Tech-Driven Strategies Utilizing a tech stack that includes tools like jQuery, Google Analytics, and Modernizr, Holler emphasizes data-driven performance measurement, opening avenues to provide advanced analytics and optimization solutions.

Mid-Sized Agency Potential As a relatively small but expanding agency with up to 50 employees and significant revenue, Holler offers personalized partnership opportunities to deliver tailored digital advertising and brand engagement services.

Industry Integration Being part of the Leo Burnett Group positions Holler within a broader network of advertising agencies, enabling cross-selling of integrated digital and traditional marketing solutions to comprehensive brand portfolios.

Holler Tech Stack

Holler uses 5 technology products and services including yepnope.js, jQuery, Hammer.js, and more. Explore Holler's tech stack below.

  • yepnope.js
    Javascript Frameworks
  • jQuery
    Javascript Libraries
  • Hammer.js
    Javascript Libraries
  • Modernizr
    Javascript Libraries
  • Google Analytics
    Web Analytics

Media & News

Holler's Email Address Formats

Holler uses at least 2 format(s):
Holler Email FormatsExamplePercentage
FirstLast@holler.co.ukJohnDoe@holler.co.uk
58%
First@holler.co.ukJohn@holler.co.uk
23%
Last@holler.co.ukDoe@holler.co.uk
11%
FirLast@holler.co.ukJohDoe@holler.co.uk
8%

Frequently Asked Questions

Where is Holler's headquarters located?

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Holler's main headquarters is located at London, England w14 8hq United Kingdom. The company has employees across 6 continents, including EuropeNorth AmericaOceania.

What is Holler's phone number?

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You can contact Holler's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Holler's official website and social media links?

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Holler's official website is holler.co.uk and has social profiles on LinkedIn.

What is Holler's SIC code NAICS code?

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Holler's SIC code is 8742 - Management Consulting Services NAICS code is 541613 - Marketing Consulting Services.

How many employees does Holler have currently?

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As of April 2026, Holler has approximately 42 employees across 6 continents, including EuropeNorth AmericaOceania. Key team members include Owner: B. L.Art Director: A. P.Director Of Internet Sales: J. T.. Explore Holler's employee directory with LeadIQ.

What industry does Holler belong to?

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Holler operates in the Advertising Services industry.

What technology does Holler use?

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Holler's tech stack includes yepnope.jsjQueryHammer.jsModernizrGoogle Analytics.

What is Holler's email format?

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Holler's email format typically follows the pattern of FirstLast@holler.co.uk. Find more Holler email formats with LeadIQ.

When was Holler founded?

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Holler was founded in 2001.

Holler

Advertising ServicesEngland, United Kingdom11-50 Employees

We're a digital agency,  part of the Leo Burnett Group, with offices in London, and soon in Chicago and Silicon Valley.

We enable brands to realise their ambitions through a digital entertainment strategy.

We create and deliver engaging content and make brands famous by creating and inspiring a following.

Section iconCompany Overview

Headquarters
London, England w14 8hq United Kingdom
Phone number
SIC Code
8742 - Management Consulting Services
NAICS Code
541613 - Marketing Consulting Services
Founded
2001
Employees
11-50

Section iconMedia & News

Section iconFunding & Financials

  • $25M$50M

    Holler's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Holler's revenue is estimated to be in the range of $25M$50M

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