Founded in 1967 by Datuk Lai Siew Wah, Ireka Corporation Berhad (‘Ireka’) was listed on the Second Board of Bursa Malaysia on 12 July 1993, and transferred to the Main Board on 13 June 2002. Today, the Group’s current activities are divided into three core businesses: Infrastructure, Real Estate and Technologies.

Ireka Corporation Berhad started its business as Syarikat Lai Siew Wah, a sole proprietor undertaking general earthworks such as site-clearings and road works construction throughout Malaysia, as a sub-contractor initially and later as a sole contractor.

In the 1970s, Ireka expanded its fleet of plants and machineries and began to take on large-scale construction works. It emerged as one of the largest local earthwork contractors in Malaysia in the 1980s and throughout the 1990s it constructed some of the country's most notable projects such as the Kuala Lumpur International Airport runway, sections of the Kuala Lumpur Middle-Ring Road II and North-South Expressway, Triang Water Treatment Plant, Putrajaya Government Administrative Offices, DiGi Corporate Office (D'House), Technology Park Malaysia, Tropicana Golf & Country Resort, Staffield Golf Course and OCBC Bank’s HQ. The Group's Infrastructure business is represented by Ireka Engineering & Construction Sdn Bhd in Malaysia and Ireka Engineering And Construction Vietnam Company Limited in Vietnam.

Within its Real Estate business, aside from direct property development activities, Ireka also initiated the listing of a property company, Aseana Properties Limited ('Aseana'), on the London Stock Exchange on 5 April 2007. Ireka's wholly-owned subsidiary, Ireka Development Management Sdn Bhd ('IDM'), has been appointed as the exclusive Development Manager for Aseana. This paved the way for Ireka to undertake property development activities not just in Malaysia, but also in Vietnam.

Ireka also take pride in the development of the award-winning 5-star hotel, The Westin Kuala Lumpur. The 452-room hotel opened its doors in September 2003 and was sold in early 2007 for a record price of approximately RM1 million per room.

In 2003, Ireka expanded into Technologies industry, by setting up a primary networking and systems integration company, i-Tech Network Solutions Sdn Bhd. i-Tech Network Solutions provides IT consultancy, hardware fulfilment, as well as data centre services via its ‘green’ data centre – SAFEHOUSE. iTech ELV Solutions Sdn Bhd, an i-Tech subsidiary company, supplies and installs extra low voltage (ELV) systems, security and access control systems; as well as closed circuit television (CCTV) systems. i-Tech’s Vietnam venture is represented by i-Tech Network Solutions (Vietnam) Co Ltd.