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Welcome to the official website of

The Gilbert and Sullivan Light Opera Company of Long Island!

Have a look around the site, and chances are you’ll be as excited about the company as we are!


Very Truly Yours, Gilbert & Sullivan

The Gilbert and Sullivan Light Opera Company of Long Island Proudly Presents the movie of

Very Truly Yours, Gilbert & Sullivan

Now Available For Viewing!

Premiered Saturday, May 15th at 3pm EST

Click Here To View The Very Truly Yours, Gilbert and Sullivan Program

2021 Update

GASLOCOLI is pleased to announce our productions of Very Truly Yours, Gilbert and Sullivan and Trial by Zoom.

This season we will be hosting two virtual performances. Click the link below to view a schedule and viewing information.

About Us

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About the Company

Founded in 1954, the Gilbert & Sullivan Light Opera Company of Long Island is not only Long Island’s oldest opera company, but one of its oldest theater companies and oldest musical organizations. 

This New York State-registered not-for-profit organization, is a touring company performing the works of Gilbert & Sullivan for churches, temples, schools, parks, libraries, seniors groups and fraternal organizations throughout Nassau and Suffolk counties, as well as in Brooklyn, Queens and Manhattan.