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Private company

Marnell Companies

Logo: marnellcompanies.com3

American architecture firm in Nevada

Marnell Corrao Associates is a privately held company specializing in architecture and general contracting services that is based in Enterprise, Nevada. The company was founded in 1974 and is the country’s oldest and largest hotel casino design/build firm. The company specializes in large-scale projects and concentrates their efforts in the casino arena.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1974Founded1

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Marnell Corrao Associates is a privately held company specializing in architecture and general contracting services that is based in Enterprise, Nevada. The company was founded in 1974 and is the country’s oldest and largest hotel casino design/build firm.2

The story

By 2002, the company had completed construction of over 55,000 hotel rooms and over 70,000 by 2005.

Received approval on October 17, 2005, for a new project on Las Vegas Boulevard in Henderson. The project, named M Resort, is located on a 79-acre (32 ha) site. The casino opened on March 1, 2009.

Marnell Companies worked with Square One and construction company Osage Manhatta Builders on the Osage Casino Hotel-Ponca City, Oklahoma in 2012-13.

From Wikipedia’s article on Marnell Corrao Associates, shared under CC BY-SA 4.0.4

Timeline

  1. 1974Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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    Company websiteMarnell Companies logo
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