2001 Spring Rd, Ste 400, Oak Brook, IL 60523-3930
Approximately 95-100% of the Portillo’s restaurant locations are linked in the Atlas Research Platform.
Public profile metrics.
Portillo's is an Oak Brook, Illinois fast casual restaurant company headquartered at 2001 Spring Rd. The business dates to 1963, when Dick Portillo invested $1,100 in a small trailer hot dog stand in Villa Park called The Dog House, using savings and a loan to serve Chicago-style hot dogs without running water. The stand grew into a Chicago restaurant chain serving Italian beef, char-grilled sausages and chocolate cake, and the company later moved into public markets, trading on the Nasdaq under the ticker PTLO. Portillo's operates its restaurants as a company-run brand rather than through franchising, which lets the chain keep control over its recipes, high-volume kitchens and themed dining rooms. From its Chicago-area base the brand has expanded well beyond the Midwest, building a growing presence across the Sun Belt in the South and Southwest along with a foothold on the West Coast. Restaurants are fast casual and serve lunch and dinner with Chicago-style hot dogs, Italian beef sandwiches, burgers, salads and shakes, with busy double drive-thru lanes at many sites. Typical units seat about 100 guests in roughly 3,000 square feet, reflecting high-throughput restaurants built for dine-in, carryout and drive-thru traffic.
RestaurantPipeline activity
A weekly cut is a selected portion of RestaurantPipeline’s broader location-development research. This profile may show selected examples when the indexed company appears in that week’s research.
Weekly RestaurantPipeline activity cut
October Week 4 · Source file: October Week 3, 2026
26000 Sr 56 · Lutz, FL 33559
Additional examples may be added
Selected records from later weekly cuts may appear here; not every matching record will be shown.
RestaurantData’s selected archived development trail for Portillo’s begins with a November 1999 report in Batavia, Illinois. It follows earlier Illinois activity, wider state reach in 2015-2018 and continued buildout in 2019-2022. Later opening-year research and development reports extend the view into 2026.
For sales teams and investors, these historical windows help identify markets for closer review, compare current development with earlier activity and place individual locations within the brand’s longer expansion history.
1 state with signals
5+ states with signals
5+ states with signals
5+ states with signals
Selected opening signals and researched location history, 1999-2026.
Swipe or scroll the chart to view all years.
Vector readout: The selected archived trail begins with Illinois development. The combined 2015-2018 and 2019-2022 windows each contain 10+ selected opening signals across 5+ states. The 2023-2026 window contains 30+ signals across 5+ states, including activity in Texas and Georgia.
Recent arc in development. Additional verified records may extend this view; 2026 is a partial year.
RestaurantData source trail: Archived reports draw on state and legal filings, alcohol-license filings, building permits and news reports. Atlas by RestaurantData™ contributes researched opening-year attributes to the later segment. A development report year and an opening year can differ for the same location.
Contact RestaurantData for full location and development histories.
Source: RestaurantData U.S. restaurant-location research. Headquarters and franchisee headquarters are excluded. The early window uses archived development records; later windows use combined development and opening-year research, counting each address once at its earliest included dated evidence. Signal volumes and state reach use rounded bands, including a 5-9 signal band for the early window; single-state reach is stated exactly. They do not represent complete opening totals, currently operating units or net growth.
The latest included development record is July Week 5, 2026. A development record may describe a planned restaurant. The six examples use their stated date basis; St. Charles’s 2002 label is a research year. The November 1999 start identifies the selected archived trail, rather than the brand’s founding. Location-file verification dates are not opening dates, and a historical record does not establish present operating status.
Source availability varies across jurisdictions and years. The wider research coverage in the dotted segment should be considered when comparing periods. Unresolved opening years are not used to assign opening dates; gaps do not by themselves establish a pause or contraction.
Read the Restaurant Vector™ overview for the research method and source definitions.
For additional historical addresses and source details, see the Portillo’s location archive on RestaurantChains.net.
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The Restaurant Enterprise Index is RestaurantData’s research framework for organizing major restaurant enterprises, including franchisors, franchisees, multi-concept operators, and parent organizations.
Certain sales and location totals are presented as estimates when companies do not publish single current figures.
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