It is the developer of a super-app for ride-hailing, food delivery, and digital payment services on mobile devices that operates in Singapore, Malaysia, Cambodia, Indonesia, Myanmar, the Philippines, Thailand, and Vietnam.

[10] The idea of creating a taxi-booking mobile app for Southeast Asia came from Anthony Tan (陈炳耀, Chen Bingyao)[11] while he was at Harvard Business School.

[14] In 2014, GrabTaxi further continued its growth and expansion to new countries: first launching in Sai Gon, Vietnam, in February, and Jakarta in Indonesia in June.

[34] In February 2019, the company launched GrabPet in Singapore which uses Grab drivers who have received training in pet handling and welcome animals in their vehicles.

[38] The company partnered with Microsoft to help people in Southeast Asia to access digital literacy programs and certificates in September 2019.

[40][41] In February 2020, Grab launched GrabCare for healthcare workers in Singapore, starting with 24-hour services to Tan Tock Seng Hospital and National Centre for Infectious Diseases.

[42] Grab also expanded its GrabMart and GrabAssistant services to more cities and countries to meet increased demand for online food and grocery deliveries.

[43] Marriott International partnered with Grab to cover about 600 restaurants and bars in Singapore, Indonesia, Malaysia, the Philippines, Vietnam and Thailand which would be added to the GrabFood delivery platform.

[46] In November 2020, Grab announced the launch of its Tech Center in Jakarta, Indonesia for micro, small and medium enterprises (MSMEs).

[50] In March 2021, Grab partnered with the Don Quijote discount store chain to deliver everyday goods such as food and cosmetics to customers in Southeast Asia.

[53] In November 2021, Grab partnered with McDonald's in Singapore to integrate GrabExpress, GrabPay and GrabRewards with the restaurant's online and in-store ordering.

[55] Grab debuted on Nasdaq in December 2021 following a SPAC with Altimeter Growth Corp.[56][57] In March 2022, the company announced that GrabFood, GrabPay, GrabGifts and its delivery system would be introduced at Starbucks in Thailand, Singapore, Malaysia, Indonesia, Vietnam, and the Philippines.

[58] In June 2022, the company introduced GrabMaps mapping and location technology for use in "hyperlocal" routes in Southeast Asian cities.

GXS owns one of the two Digital Full Bank license issued by MAS, and is backed by a consortium consisting of Grab Holdings based on regulatory requirements.

[69] On 23 September 2016, a female passenger in Singapore was sexually assaulted by an elderly GrabCar driver after she fell asleep during the ride.

[81] On 26 October, a Grab driver was killed in Pasay, Philippines by a suspect disguised as a legitimate passenger, who subsequently fled with the victim's vehicle and personal belongings.

[92] In 2021, the Thai government approved a draft ministerial regulation, allowing Grab to operate taxi services legally in the area.

[97] In 2017, the Vietnamese Ministry of Transport set to review the legal status of both Grab and Uber to ensure a fair business environment for firms.

[100] In Cambodia and Singapore, Grab supported local governments in traffic management and infrastructure development through its data and technology.