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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!


2021 Update

GASLOCOLI is pleased to announce our production of

The Mikado: A Long Island Fairytale


Oceanside’s Robert Del Monte Honored for 50 Years of Gilbert & Sullivan

CLICK HERE TO READ MORE


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

The Movie

Now Available For Viewing!

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.