It is 30 years ago that the Western Australian LGBTI community held its first Pride Parade. At the time, it wasn't so much a parade, as a march on parliament house calling on the government to legalise homosexuality.

This year's theme is REFLECT; Heroes, Community, Identity, and Love. 

According to Pride President Frances Burgess, the theme was chosen as the community looks back on three decades of championship for LGBTI rights and culture.

Representatives from Woodside said the festival was an important part of Western Australian history and were "proud supporters" of diverse sexuality and gender community in the state and across its worksites.

"Woodside is proud to be a sponsor of this year's Perth Pride Parade, marking the 30^th anniversary of this annual celebration of the LGBTI+ community. Pride is about inclusion, equality and respect - values which we put at the heart of our culture at Woodside," Woodside vice president People & Global Capability, Jacky Connolly told Energy News.

"Our team is already working on the Woodside parade float and is excited to be marching again in support of our LGBTI+ workmates and the broader Perth community."

The festival was formally launched last Tuesday, attracting more than 200 high-profile members of the community including Woodside employees, to the WA Theatre Centre foyer.

This year's festival spans from Broome to the Peel region, and culminates with the highly anticipated Perth Pride Parade on November 30.

Last year's Pride Parade reached a record 140 individual floats, more than half the size of the annual Mardi Gras Parade in Sydney - Australia's largest tourism event.

Woodside is not the only resources major sponsor of the festival, with Alcoa joining this year.

Alongside Woodside, Shell Australia, and Chevron Corporation, as well as smaller industry groups like Subsea Energy Australia marched in the parade showing their "true colours" last year.