Many airlines have agreeements with other companies which provide services to business travellers. These companies offer extra airline frequent traveller points.
Below is an example of preferred partners of Gulf Air:
Preferred Partner
Falcon Miles
Hertz Car Rental
500 miles each rental.
Le Meridien Hotel Group
250-1000 miles each stay depending on city and type of room.
Radisson Hotels
500 miles each stay.
Flights on Virgin Atlantic
15,000-150,000 miles depending on destination and class of travel.