It’s hard to believe, but it’s been three years since Apple dropped Google Maps from iOS in favor of its own maps offering. It got off to a rocky start, and Google would later offer iPhone users a new Maps app, but Apple has improved its own offering over time.

Apple gets its business listings from a lot of different places, so if you have a business, you’ll probably want to make sure you’re listed appropriately as to not miss out on searches that take pace in Apple’s app.

Local search expert Mike Blumenthal has put together an updated list of data providers Apple is using for business listings. The information comes from Apple’s Map acknowledgements and information from an Apple email.

“With the release of iOS 9 and its increasing foray into local search, it is important to stay on top of who is actually providing business listing data to Apple,” notes Blumenthal.

Sources include Acxiom, Booking.com, DAC Group, Factual, GasBuddy/OpenStore, TripAdvisor, Localeze, Yelp, Yext, and many others. Head on over to Blumenthal’s write-up for the full list.

iOS 9 was released on September 16th. Early research from Tapjoy found that users were taking their time in updating their devices compared to previously released versions of the operating system. Still, many more have gotten the update since then, and will continue to do so.

Image via Apple