Quiznos Corporate Office, Headquarters & Phone Number 

Quiznos corporate office is located in Denver, Colorado. This page provides the current Quiznos headquarters address, corporate phone number, ownership information, official feedback options, franchise details, and guidance for escalating a concern involving a Quiznos restaurant.

Quiznos Corporate Office and Headquarters Information

Address and phone update: Quiznos currently lists Suite 225 at its Denver corporate address. The previously published Suite 640 address is outdated. The current official general-inquiries number is 1-720-359-3300.

The older toll-free number 1-866-4-TOASTED does not appear on Quiznos’ current official contact, corporate, gift-card, or legal pages. It is therefore not presented here as a verified current customer-service number.

Quiznos Corporate Structure and Ownership

Quiz Holdings, LLC is the company identified in Quiznos’ current website terms and franchise materials. Quiznos and Taco Del Mar operate through REGO Restaurant Group, a Denver-based restaurant platform backed by High Bluff Capital Partners.

Most Quiznos restaurants are independently owned and operated by franchise owners. Local franchisees generally control restaurant staffing, operating hours, menu availability, local pricing, refunds, and day-to-day customer service. As a result, a complaint involving a particular purchase or visit should normally begin with the restaurant involved.

Choose the Correct Quiznos Contact Route

• Restaurant order or food complaint: Contact the restaurant that prepared the order and ask for the manager.
• Incorrect or missing online order: Contact the restaurant and the ordering or delivery platform used for the purchase.
• Refund request: Begin with the restaurant or platform that processed the payment.
• Unresolved guest complaint: Submit the official Quiznos feedback form.
• Corporate or business inquiry: Call the Denver corporate office at 1-720-359-3300.
• Restaurant employment: Contact the individual Quiznos restaurant because most locations are operated by franchise owners.
• Franchise inquiry: Use the official Quiznos franchise website.
• Gift-card assistance: Use the specialized gift-card contacts listed below.

How to Escalate a Quiznos Complaint

1. Speak with the restaurant manager. For an incorrect order, missing item, food-quality concern, employee interaction, restaurant cleanliness issue, or same-day refund request, begin with the location involved.
2. Document the purchase. Keep the receipt, order number, restaurant address, date, time, payment method, photographs, and delivery-platform information.
3. Submit written feedback. Use Quiznos’ official feedback form and provide a factual description of the issue and the resolution requested.
4. Contact the corporate office if necessary. For an unresolved or broader corporate concern, call 1-720-359-3300.
5. Contact the payment or delivery provider. If an outside delivery platform or gift-card company handled the transaction, that provider may need to review the charge or refund.

Calling the Quiznos corporate phone number does not guarantee direct access to an executive, franchise owner, or restaurant manager. Corporate personnel may route restaurant-specific concerns back to the franchise operator responsible for that location.

What to Have Before Contacting Quiznos

• Restaurant address, city, state, and store number if available
• Date and approximate time of the visit or order
• Receipt, order number, or confirmation email
• Items purchased and the amount charged
• Ordering method, such as in-store, website, app, catering, or delivery service
• Names or descriptions of managers or employees contacted, if known
• Photographs of the food, packaging, receipt, or restaurant condition when relevant
• Previous feedback confirmations or case numbers
• A concise explanation of the resolution requested

Quiznos Gift-Card Help

Quiznos provides separate support for gift-card balances and refused or damaged cards:

• Gift-Card Balance: 1-800-242-5353
• Lost, Refused, or Damaged Gift Card: 1-866-733-2943
• Gift-Card Information: Quiznos Gift Cards
• Refused or Damaged Card Form: Gift-Card Replacement Form

Keep the gift card and purchase receipt until the issue is resolved. Do not publish the complete card number, security code, balance, or photographs showing both sides of the card in a public review.

Quiznos App, Rewards, and Online-Order Problems

Quiznos offers online ordering and the Toasty Points rewards program at participating restaurants. App and rewards problems may involve missing points, account access, an offer that did not apply, an order sent to the wrong location, a payment error, or differences in restaurant participation.

Use the official Quiznos feedback form and include the restaurant, order date, receipt, account email, and screenshots when relevant. Share account and payment details only through an official private support channel.

Food Quality and Restaurant Safety Complaints

Contact the restaurant promptly when a concern involves incorrectly prepared food, spoiled ingredients, a foreign object, an allergy modification, food served at an unsafe temperature, improper food handling, or unsanitary conditions. Preserve the receipt, packaging, photographs, remaining food, and restaurant information when appropriate.

Quiznos Careers and Employment Questions

Because Quiznos restaurants are generally independently owned franchises, restaurant employees and applicants should contact the specific location or franchise owner regarding applications, schedules, payroll, W-2 forms, employment verification, or workplace concerns.

The Quiznos corporate phone number is not presented as a dedicated Human Resources line. Do not publish employee identification numbers, payroll records, Social Security numbers, home addresses, disciplinary records, or other private employment information in the comments.

About Quiznos

Quiznos began in Denver in 1981 and became known for serving toasted submarine sandwiches. Its menu has included toasted subs, salads, soups, sides, desserts, beverages, and catering selections, although products and participation can differ by location.

The company operates through a franchise model with restaurants in the United States and international markets. Quiznos continues to promote its toasted-sandwich identity while developing updated restaurant formats, online ordering, delivery options, and its Toasty Points loyalty program.

Quiznos Competitors and Related Corporate Office Pages

Quiznos competes with sandwich, deli, fast-food, and fast-casual restaurant chains. Related corporate-office pages include:

• Subway Corporate Office
• Jimmy John’s Corporate Office
• Firehouse Subs Corporate Office
• Schlotzsky’s Corporate Office
• Penn Station Corporate Office

Related Quiznos Resources

• Official Quiznos Website
• About Quiznos and Corporate Contact
• Quiznos Guest Feedback
• Quiznos Restaurant Locator
• Quiznos Gift Cards
• Quiznos Privacy Policy
• Quiznos Terms of Use
• Quiznos Franchise Opportunities
• REGO Restaurant Group

Frequently Asked Questions About Quiznos Headquarters

Where is Quiznos headquarters?

Quiznos headquarters is located at 4700 S. Syracuse St., Suite 225, Denver, CO 80237.

What is the Quiznos corporate phone number?

The current Quiznos corporate office and general-inquiries phone number is 1-720-359-3300.

Is Suite 640 still the Quiznos corporate address?

No. Quiznos currently publishes Suite 225 at 4700 S. Syracuse St. in Denver. Suite 640 is an older address listing.

Is 1-866-4-TOASTED still the Quiznos customer-service number?

Quiznos does not list 1-866-4-TOASTED on its current official corporate, contact, gift-card, or legal pages. Use the local restaurant, official feedback form, or the verified Denver corporate number instead.

How do I complain about a Quiznos restaurant?

Contact the restaurant manager first. If the matter remains unresolved, submit the official Quiznos feedback form with the restaurant location, date, receipt, order details, and requested resolution.

Are Quiznos restaurants independently owned?

Most Quiznos restaurants are independently owned and operated by franchise owners. The local franchisee may control restaurant staffing, prices, refunds, operating hours, and service decisions.

Who owns Quiznos?

Quiz Holdings, LLC is the company associated with the Quiznos brand and franchise system. Quiznos operates through REGO Restaurant Group, which is backed by High Bluff Capital Partners.

What is the Quiznos gift-card phone number?

Call 1-800-242-5353 to check a gift-card balance. For a refused, lost, stolen, or damaged card, Quiznos instructs customers to call 1-866-733-2943 and complete its replacement form.

Quiznos Reviews and Complaints

There are currently no reader reviews displayed on this CorporateOfficeHeadquarters.com page. If you have contacted a Quiznos restaurant, franchise owner, guest-feedback team, gift-card provider, or corporate office, you may be the first to share a factual review below.

Why Trust CorporateOfficeHeadquarters.com?

CorporateOfficeHeadquarters.com provides corporate addresses, headquarters phone numbers, ownership information, complaint guidance, and a public review forum. We compare older page information with current company websites and direct corporate resources when updating listings.

Page Update Note

This page was updated on August 17, 2026 to replace the former Suite 640 listing with Quiznos’ current Suite 225 address, verify the Denver corporate phone number, remove an unverified legacy toll-free number, clarify Quiz Holdings and REGO Restaurant Group, distinguish franchised restaurants from the corporate office, add gift-card contacts, update related links, and remove a redundant image.

Disclaimer

CorporateOfficeHeadquarters.com is not affiliated with, endorsed by, or operated by Quiznos, Quiz Holdings, LLC, REGO Restaurant Group, High Bluff Capital Partners, any Quiznos franchise owner, any gift-card provider, or any delivery platform.

This page is provided for corporate-information, review, and complaint purposes only. CorporateOfficeHeadquarters.com cannot access restaurant orders, refunds, rewards accounts, gift-card balances, job applications, franchise records, or corporate correspondence. Verify important information directly with Quiznos or the restaurant involved.

Share Your Quiznos Experience

Have you contacted a Quiznos restaurant, manager, franchise owner, guest-feedback team, gift-card provider, or the Denver corporate office? Share your experience below, including the restaurant city and state, the general issue, which contact routes you tried, and whether the concern was resolved.