American Express Anywhere will provide a one-click BlackBerry option for cardholders to manage their business travel itineraries, receive travel alerts and weather information, and call their travel providers.
Amex and Rearden, which announced the service Tuesday, said it would eventually allow users to view airport parking and car service reservations, and to book tables at restaurants, among other capabilities.
Rearden Commerce, of Foster City, Calif., has developed an online personal-assistant network used by more than 135,000 merchants.
Gunther Bright, a senior vice president in the global client group at American Express, said in a press release that Anywhere would help provide corporate cardholders with "a suite of rich services by leveraging Rearden Commerce's innovative technology platform."
American Express said it would offer the BlackBerry service to Fortune 500 companies in the United States and to its largest commercial card clients around the world.
The New York credit and charge card company's business travel clients in other markets can also use Anywhere as a supplement to an online travel service already supplied by Rearden.