What industry does HSL belong to?

HSL operates in the Public Relations and Communications Services industry.

Insights

Established Market Presence With over 30 years of operation, HSL demonstrates a strong legacy in public relations and marketing communications, indicating stability and experience that can be leveraged for trust-building with prospective clients in sectors like motor, finance, and travel.

High Revenue Potential Generating between one billion and ten billion dollars in revenue, HSL represents a significant opportunity for service expansion in high-value markets, especially for firms seeking comprehensive PR solutions or strategic communications partnerships.

Technological Infrastructure Utilizing a diverse array of digital tools such as WordPress, Amazon SES, and Nginx, HSL shows a robust digital ecosystem that could present opportunities for marketing automation, content management, and web development services.

Sector Specialization Specializing in the motor, finance, and travel sectors, HSL is positioned to benefit from partnerships or service offerings tailored to these industries, especially in areas like media relationship management and thought leadership positioning.

Client Retention Strength With industry-leading client retention, HSL indicates a high level of satisfaction and loyalty, creating avenues to offer complementary or advanced PR and marketing solutions to existing clients or similar organizations seeking reliable partners.

HSL Tech Stack

HSL uses 8 technology products and services including RSS, WordPress, oEmbed, and more. Explore HSL's tech stack below.

RSS

Content Management System

WordPress

Content Management System

oEmbed

Dev Tools

Amazon Simple Email Service

Google Fonts API

Font Scripts

jQuery

Javascript Libraries

WP Engine

Platform As A Service

Nginx

Web Servers

HSL Email Formats	Example	Percentage
First@harrisonsadler.com	John@harrisonsadler.com	50%
First@harrisonsadler.com	John@harrisonsadler.com	50%

HSL Email Formats

Example

Percentage

First@harrisonsadler.com

John@harrisonsadler.com

50%

First@harrisonsadler.com

John@harrisonsadler.com

50%

Frequently Asked Questions

Where is HSL's headquarters located?

HSL's main headquarters is located at P/o Box 282 London, England United Kingdom. The company has employees across 6 continents, including EuropeAsiaSouth America.

What is HSL's stock symbol?

HSL is a publicly traded company; the company's stock symbol is HSL.L.

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

HSL's official website is harrisonsadler.com and has social profiles on LinkedIn.

What is HSL's SIC code NAICS code?

HSL's SIC code is 7375 - Information Retrieval Services NAICS code is 54182 - Public Relations Agencies.

How many employees does HSL have currently?

As of March 2026, HSL has approximately 656 employees across 6 continents, including EuropeAsiaSouth America. Key team members include CEO: Z. K.President: S. H.Owner: E. L.. Explore HSL's employee directory with LeadIQ.

What technology does HSL use?

HSL's tech stack includes RSSWordPressoEmbedAmazon Simple Email ServiceGoogle Fonts APIjQueryWP EngineNginx.

What is HSL's email format?

HSL's email format typically follows the pattern of First@harrisonsadler.com. Find more HSL email formats with LeadIQ.

When was HSL founded?

HSL was founded in 1987.

HSL

Q: What is HSL's official website and social media links?

HSL's official website is harrisonsadler.com. HSL has social profiles on LinkedIn.

Q: How many employees does HSL have currently?

HSL has approximately 656 employees.

Q: What technology does HSL use?

HSL's tech stack includes Slider Revolution, Amazon Simple Email Service, jQuery, jQuery Migrate, MySQL.

Public Relations and Communications ServicesEngland, United Kingdom501-1000 Employees

HSL is a hard-working and creative PR and marketing communications agency.   

With sound credentials in the motor, finance and travel sectors, we develop and manage on-going marketing communications programmes as well as short term projects.  

At HSL, we excel in positioning our Clients as thought leaders, finding the opportunities and driving the activity, leveraging our skills in building strong media relationships.  We pride ourselves on the quality of the copy we develop - always engaging, timely and relevant - whether it's a response on social media, a news story or an Award entry.

Over 30 years in operation, our industry leading client retention says everything abut the standard of service we deliver.

Insights

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HSL Tech Stack

Media & News

HSL's Email Address Formats