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Yum Yum Donut Shop

18830 San Jose Ave, City of Industry, CA 91748-1325

Track This Company Profile reviewed October 2026

Approximately 60-65% of the Yum Yum Donut Shop restaurant locations are linked in the Atlas Research Platform.

Enterprise Snapshot
(US & CAN)

Public profile metrics.

~150 Restaurant locations
2 Concepts or Entities
~$100M System sales (US & CAN)
4+ C-suite connections

Concepts

2 of 2 shown
Winchell's Donut House Yum Yum Donut Shop

Cuisines

1 of 1 shown
Donut

States & Provinces

1 of 1 shown
CA

Summary

Yum Yum Donut Shop is a City of Industry, California quick serve bakery and cafe company headquartered at 18830 San Jose Ave. Phillip C. Holland opened the first shop in 1971 in a converted storefront in Los Angeles's Cypress Park neighborhood, later partnering with Frank Watase to grow a California donut and coffee chain that remains privately held under family ownership. In 2004 the company acquired Winchell's Donut House, the classic West Coast donut brand founded by Verne Winchell in Temple City in 1948, and continues to operate both banners as distinct concepts. Concepts are Winchell's Donut House and Yum Yum Donut Shop. The company is a franchisor with roughly half of the system franchised to independent operators alongside company-run shops. The footprint is California-focused, concentrated in Southern California rather than a multi-state national roll-out. Shops emphasize fresh donuts, coffee and bakery cafe fare for breakfast, lunch and dinner, with some locations historically open around the clock and menus that also feature sandwiches and related quick-serve items. Typical units seat about 10 guests in roughly 1,000 square feet, suited to compact neighborhood donut shops with limited seating.

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Ownership & Concepts

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Locations & Markets

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How This Profile Is Built

RestaurantData combines corporate disclosures, franchise documentation, public filings, company websites, location research, and proprietary verification. Parent-level figures may aggregate linked concepts. Certain sales and location totals are presented as estimates when companies do not publish a single current figure.

About This Enterprise Profile

Research Notes

Locations linked directly to this company may include franchised restaurants it operates and locations of its wholly owned concepts that do not have separate headquarters records. Those with a substantial number of locations generally have their own headquarters record, while smaller concepts may be linked directly to this company.

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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The Restaurant Enterprise Index focuses primarily on companies with a substantial role in restaurant operations. Investment firms, financial sponsors, and other ownership partners are generally not included unless they also play a meaningful operating role; an otherwise qualifying entity may also be omitted when sufficient reliable information is unavailable.

The ownership hierarchy follows the entity structure from the bottom up, showing the profiled entity in relation to its parent organizations, including its ultimate parent. When the entity owns or operates concepts beneath it, up to three are displayed.

Verify Our Data Methodology

  • Foundation: Active state business registries form the primary backbone of every record.
  • Sources: Publicly available filings throughout, including public Franchise Disclosure Documents (FDDs).
  • Integrity: Zero proprietary third-party databases utilized.
  • Verification: Entity/concept records are validated at the source by our in-house research team.

Leveraging Human-Verified Connections

  • Collection: Filings and public records are gathered through intake procedures.
  • Verification: In-house researchers review every record before it enters the database.
  • Ownership Chain: Where relationships can be established, researchers work upward from a concept headquarters or single concept through parent, grandparent, and ultimate parent, resolving operators into one connected structure.

Maintaining the Longitudinal Record

  • Duration: Continuous tracking since 1997. Twenty-nine years of unit-level history.
  • Method: Same methodology applied across the full period so year-over-year comparisons hold.
  • Change Tracking: Openings, closures, ownership transfers, and operator consolidation are recorded as they occur, not backfilled.
  • Result: Expansion and contraction trends visible over decades, not snapshots.
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70+ parent-level data points Complete ownership hierarchy Executive contacts Concept and location records Enterprise change alerts