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Outdoor Auditors is an independent company that provides third-party audit data to the outdoor advertising industry. We offer a wide variety of reporting ranging from competitor analysis and real-time monitoring to compliance and beyond.


The most comprehensive database of OOH sites in South Africa

Improve your campaign planning by identifying competitors’ spend and strategies.

Identify and correct errors in real time with daily verification of all your DOOH activity.

Highlight potential areas of improvement with an independent report on the current state of your holding.

Get a bi-annual report with in-depth insights into the market for better planning and sales.

Get high-quality photos of all your sites taken by trained auditing professionals.

Outdoor at your


We collect nationwide data every six months in February and August by sending teams to personally photograph every site on our database. This ensures that our database remains current and is an accurate representation of each site. For each face, we take GPS coordinates, photos and update all relevant data, including media owner, size and current brand.

When it comes to data, accuracy is everything.



billboard faces audited every 6 months


towns reported on bi-annually

Outdoor Auditors is the only independent company that provides accurate, unbiased data for the Out-of-Home industry.

Trusted by media owners and agencies alike, our up-to-date data and unique insights have made us a sought-after partner in the OOH industry.


photos processed every audit


media owners reviewed

Over 20 years of industry experience at your service.


We have delivered reports to a variety of major brands across a broad spectrum of industries.



annual growth rate of digital screens in SA


average occupancy of static billboards in SA


The biggest brand on OOH in SA (# of sites)


The biggest urban brand on OOH in SA (# of sites)


"Primedia Outdoor has had a longstanding relationship with Outdoor Auditors for over a decade. We continuously make use of their credible first-party auditing data to better understand the OOH landscape within the South African market and develop strategic OOH solutions for our valued clients. We receive great service and valuable insights from the team, and look forward to continuing our relationship with them in the future."  


Jorja Wilkins, Executive: Marketing and Marketing Services, Primedia Outdoor

"Working with Outdoor Auditors has been nothing short of a pleasure! They solve a very critical gap in the market with their valuable data. As an independent business, they are best poised for the services they provide. We fully intend to grow our partnership with them."


Donald Mokgale, Group Business Director, Dentsu SA

“ We have used Outdoor Auditors' services consistently over the last five years. Erik is a true professional and really understands the OOH industry! Their data has given us much needed insight and guidance for optimising our various portfolios and making strategic decisions.”

Jacques du Preez, CEO PMG

“Over the years, Outdoor Auditors has proved that they offer some of the best service levels in the business. Their fully transparent and ethical methodologies give us peace of mind knowing that they have our and clients’ best interests at heart.”


Andy Anderson, Pezulu Outdoor Advertising

“Outdoor Auditors’ tools are key to my OOH planning, and I would not be able to offer the level of professional service my clients have come to expect without them. Their ongoing commitment to adding valuable layers to the tools is testament to their innovative and unique offering. I’m a huge supporter!”


Margie Carr, M Carr Media

"I see the value of the Outdoor Auditors data play out on a daily basis. The industry is so reliant on the Outdoor Auditors data to get an accurate OOH landscape overview with rich insights that benefit all players in the OOH industry - from media agencies and owners to clients and creative agencies.”


Livia Brown, Owner and Founder of what3things



Erik Warburg

Founder and Sales + Marketing Director


Erik graduated from the University of Cape Town with a B.Sc. in Mathematics, followed by an AdMac course at the Red & Yellow School of Advertising. After working as a Media Strategist at DraftFCB and taking on the role of MD of Posterscope Cape Town, he completed his MBA at the UCT Graduate School of Business. This led to his appointment as a Management Consultant at Bain and Company.


In 2009, Erik founded Outdoors Auditors in partnership with his brother Rene Warburg. With over 20 years’ experience in the media industry, Erik is passionate about improving the efficiency of the OOH industry, effectively linking supply and demand, and reducing wasted spend.


Rene Warburg

Founder and Operations Director


Rene graduated from the University of Cape Town having achieved a B.Sc. Environmental & Geographic Science and B.Com in Economics. His studies continued at the University of Pretoria and the University of Salzburg where he obtained a B.Sc. Geography and M.Sc. GIS respectively. After relocating to Tanzania, Rene launched his career as a GIS Manager at Friedkin Conservation Fund.


Since founding Outdoor Auditors with Erik, Rene has lent his considerable GIS expertise to providing valuable data to the OOH industry, growing the company’s unique planning tools, and leveraging his valuable insight into the ongoing evolution of the industry.

Real people. Real data. Real results.


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