Rosati's
Rosati's is an American restaurant chain known for Chicago-style pizza and related casual-dining offerings.
Last updated August 24, 2026
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Overview
Rosati's, also known as Rosati's Pizza or Rosati's Authentic Chicago Pizza, is an American casual-dining and pizza restaurant brand specializing in Chicago-style pizza. The business traces its origins to 1926, when Saverio Rosati established a restaurant at the intersection of Pulaski Road and Madison Street on Chicago's West Side. That original location later closed, but the family business was revived in 1964 in Mount Prospect, Illinois. The Mount Prospect reopening became the foundation for the modern chain and for the wider Rosati family restaurant business. The brand's identity is rooted in Chicago pizza traditions and in a family-operated expansion model. Its menu is centered on pizza, particularly Chicago-style preparations, and is supplemented by other casual restaurant items typically associated with a pizza-chain format. Rosati's restaurants have served both dine-in and carryout customers, while the chain has also developed a delivery-oriented presence. The brand's positioning emphasizes an established Chicago-area heritage rather than a purely national fast-food identity. By 1995, Saverio Rosati's five sons—Fred, Richard, Al, Bill, and Ronald—had expanded the business to become the fourth-largest pizza chain in the Chicago area, behind Pizza Hut, Domino's, and Little Caesars. The chain subsequently developed a broader United States footprint. Reference material describes more than 200 locations nationwide, with more than one-third located in Illinois, making Illinois the brand's principal market while demonstrating reach beyond the Chicago metropolitan area. Rosati's has received recognition in industry rankings. Pizza Today placed the brand at number 21 in its 2018 list of the top 100 pizzerias. Following increased sales in 2019, Rosati's was reported among the top twenty of Pizza Today's list of America's 100 Largest Pizza Chains. These rankings indicate continued scale and category relevance, although they do not establish a current financial valuation or public-company status. The Rosati's name has also been associated with internal family and brand-ownership complexity. Reference material notes that two competing restaurant chains use the Rosati's name following what it describes as an unfortunate family quarrel. This distinction is important when interpreting location counts, corporate ownership, historical claims, and public references to the brand: not every business operating under the Rosati's name necessarily belongs to a single unified organization. The documented brand remains active as a United States pizza-chain business headquartered in Warrenville, Illinois.
History
Rosati's history begins in 1926, when Saverio Rosati opened a restaurant at Pulaski Road and Madison Street on Chicago's West Side. The original establishment eventually closed, but the family continued its involvement in foodservice. In 1964, the business reopened in Mount Prospect, Illinois, creating the location and operating base from which the later Rosati's chain developed. The next major phase came through Saverio Rosati's five sons—Fred, Richard, Al, Bill, and Ronald. By 1995, their expansion had made Rosati's the fourth-largest pizza chain in the Chicago area, behind Pizza Hut, Domino's, and Little Caesars. This growth reflected the strength of Chicago-style pizza as a regional category and the family's ability to extend the concept beyond a single neighborhood restaurant. Rosati's later expanded outside the Chicago area and established a national presence through a network of more than 200 United States locations. Illinois remained its strongest geographic market, accounting for more than one-third of the reported locations. The chain's model has combined restaurant operations with carryout and delivery, allowing it to serve both traditional casual-dining customers and off-premises demand. Industry recognition followed the chain's expansion. Pizza Today ranked Rosati's number 21 among its top 100 pizzerias in 2018. After reported sales growth in 2019, the brand was placed among the top twenty of America's 100 Largest Pizza Chains in the publication's ranking. These acknowledgments positioned Rosati's as a substantial regional-to-national pizza operator rather than only a local Chicago institution. The history of the Rosati's name is complicated by a dispute within the founding family. Reference material states that two competing restaurant chains use the Rosati's name as a result of a family quarrel. Consequently, the name does not necessarily refer to one completely unified corporate system, and historical or location claims should be interpreted with attention to the specific Rosati's organization being discussed. The subject covered by the canonical Rosati's article is an active American Chicago-style pizza chain headquartered in Warrenville, Illinois.
- 2019
Recognition among America's largest pizza chains
[1]Following an increase in sales, Rosati's was reported among the top twenty of Pizza Today's list of America's 100 Largest Pizza Chains.
- 2018
Pizza Today top-100 recognition
[1]Pizza Today ranked Rosati's number 21 on its list of the top 100 pizzerias.
- 1995
Expansion under Saverio Rosati's sons
[1]Fred, Richard, Al, Bill, and Ronald Rosati had expanded the company to become the fourth-largest pizza chain in the Chicago area.
- 1964
The family business reopens in Mount Prospect
[1]After the original Chicago location closed, the business reopened in Mount Prospect, Illinois, providing the foundation for the modern chain.
- 1926
Saverio Rosati establishes the original restaurant
[1]Saverio Rosati founded the business at the corner of Pulaski Road and Madison Street on Chicago's West Side.
Products and positioning
A family-rooted Chicago-style pizza chain combining regional heritage with a broad United States restaurant and carryout footprint.
Pizza
Chicago-style pizza
Chicago-style pizza is the defining product category of Rosati's. The brand's restaurant identity is built around serving pizza associated with Chicago's regional culinary tradition, supported by dine-in, carryout, and delivery formats across its United States location network.
Casual dining
Rosati's pizza-chain menu
Beyond its core pizza offering, Rosati's operates as a casual-dining pizza chain with related restaurant food and off-premises options. The available reference material does not provide a complete itemized menu, so individual secondary products are not specified here.
Sources1 sources
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