Officiency Africa turns every taxi in a moving billboard

Africa's Mobile DOOH Pioneer

Officiency Africa is a South African digital out-of-home media company building one of the continent's most innovative mobility advertising networks. Operating across Johannesburg, Officiency Africa turns the city's vast taxi fleet into a dynamic, GPS-tracked, geofence-responsive advertising platform.

The concept is as compelling as it is simple: screens installed in taxis become moving billboards that traverse the city's most trafficked corridors — Sandton CBD, Rosebank, the CBD, Soweto, and beyond — delivering contextually relevant advertising based on where the taxi is at any given moment.

With 500 taxis already live across Johannesburg and the network growing, Officiency Africa is redefining what it means to reach an urban audience — not by putting a screen in one place and hoping the right person walks past, but by bringing the message directly to the audience, wherever they are in the city.

Johannesburg's Taxi Network: The City's Largest Untapped Media Channel

South Africa's minibus taxi industry moves an estimated 15 million passengers daily — more than any other form of public transport. In Johannesburg alone, taxis are the dominant mode of transport for the city's working population.

Captive, Moving Audience: Taxi passengers are a captive audience for the duration of their journey. Unlike billboards or digital screens in fixed locations, in-taxi screens have the passenger's attention — in an enclosed space, for several minutes at a time.

City-Wide Coverage: 500 taxis covering Johannesburg's key routes — Sandton, Rosebank, CBD, Soweto, Alexandra — means the Officiency Africa network reaches audiences across every major economic corridor in the city, simultaneously.

Location is Everything: A screen in a taxi passing a shopping mall is worth infinitely more to a retailer than one parked elsewhere. Geofencing turns location into a creative and commercial advantage — the right message, at the right place, for the right brand.

Geofencing + Geolocation: OnSign Powering Smart Mobility Ads

OnSign's geofencing and geolocation capabilities are the engine behind Officiency Africa's contextual advertising model — enabling content to respond dynamically to every taxi's real-time GPS position across the city.

01 — Virtual Zones, Real Impact (Geofencing): Advertisers define virtual geographic boundaries around specific points of interest — shopping centres, stadiums, business districts, campuses, fast food outlets. When a taxi enters a geofenced zone, OnSign automatically triggers the relevant campaign on that screen. No manual intervention. No delays.

02 — Every Taxi. Every Moment. Tracked. (Geolocation): Each taxi in the Officiency Africa network transmits its GPS position in real time. OnSign uses this continuous location stream to determine which content should be playing on each screen at every moment — turning the city map into a live content schedule.

03 — Content That Moves With the City (Dynamic Scheduling): Breakfast campaigns near commercial hubs in the morning. Retail promotions near malls in the afternoon. Entertainment ads near nightlife areas in the evening. OnSign's scheduler combines geofence triggers with time-of-day rules to deliver hyperlocal, hyper-relevant content automatically.

04 — 500 Screens. One Dashboard. (Fleet Management): Every taxi in the Officiency Africa fleet is monitored and managed from OnSign's central platform. Content updates, geofence zone configurations, campaign scheduling, screen health monitoring — all from a single web interface, without any on-site visits.

Technical summary

Platform: OnSign — cloud-based CMS with native geofencing and geolocation.

Connectivity: 4G/LTE per device, continuous GPS transmission.

Geofence zones: Sandton CBD, Rosebank, Johannesburg CBD, Soweto, Alexandra, and custom zones.

Content triggering: Automatic on zone entry, combined with time-of-day rules

Fleet size: 500 taxis live across Johannesburg.

Management: Single OnSign dashboard — remote content, scheduling, monitoring, and reporting.

From GPS Signal to Triggered Ad in Seconds

Step 1 — Screen Installation in Taxi: Each taxi is fitted with a display running the OnSign player. The device connects to the mobile network (4G/LTE) and transmits its GPS position continuously to the OnSign platform.

Step 2 — Geofence Zone Configuration: Officiency Africa configures geofenced zones in OnSign — drawing virtual boundaries around Sandton CBD, Rosebank, the CBD, shopping centres, and other key points of interest across Johannesburg.

Step 3 — Real-Time Content Triggering: As each taxi moves through the city, OnSign monitors its GPS position against all active geofence zones. The moment a taxi enters a zone, the matching campaign triggers automatically on that screen.

Step 4 — Advertiser Reporting & Proof of Play: OnSign logs every content play — timestamp, location, screen ID. Officiency Africa provides advertisers with transparent proof of delivery: which screens played which content, where, and when.

500 Taxis. A City Full of Contextual Ad Moments.

500 Taxis live — one of Africa's largest in-taxi digital advertising networks

GPS Real-time location tracking powering dynamic content delivery city-wide

∞ Geofence-triggered ad moments — every zone entry fires a hyper-relevant campaign

For Advertisers

Hyperlocal, location-triggered campaigns with proof of play. Brands can target specific zones — a shopping mall, a stadium, a business park — knowing their ad plays only when a taxi is in that exact location. Higher relevance. Higher impact.

For Officiency Africa

OnSign's centralised platform enables Officiency Africa to operate a 500-screen mobile network without a large technical team. Geofence zones are configured once and applied fleet-wide. New campaigns go live instantly across all 500 taxis from one dashboard.

Why OnSign