|Headquarters||Jacksonville, Florida, USA|
|Products||Submarine sandwiches, Hot subs|
Firehouse Subs is an American-based, fast casual restaurant chain that specializes in hot subs. Founded in 1994 in Jacksonville, Florida, by former firefighter brothers Robin and Chris Sorensen, Firehouse Subs serves sandwiches with meats and cheeses, "steamed" hot and placed on a toasted sub roll. Locations offer a family-oriented atmosphere, with a firefighter theme that includes fire equipment throughout the store and a menu that features sandwiches with themed names. They offer hot sauces in a range of intensities. Pictures mounted on the walls highlight local firefighting history, as well as the founders' history of firefighting service.
In 2005, the Firehouse Subs founders established the Firehouse Subs Public Safety Foundation with the mission of providing funding, life-saving equipment, and educational opportunities to first-responders and public safety organizations. Through the non-profit 501(c)(3), Firehouse Subs Public Safety Foundation has given more than $23 million to hometown heroes in 46 states, Puerto Rico and Canada. Each restaurant recycles leftover, five-gallon pickle buckets, available to guests for a $2 donation to the Foundation. Donation canisters on register counters explain the non-profit’s mission and collect spare change while the Round Up Program allows guests to “round up” their bill to the nearest dollar. All funds raised benefit the Foundation.
On August 3, 2011, a company press release stated that they were placing the Coca-Cola Freestyle beverage dispenser in all their stores after a six-month test at the 25 restaurants in the Jacksonville market. Firehouse is the first national franchise chain to use the new technology in all franchises.
Starting in October 2013, Firehouse Subs began testing their new "Hearty and Flavorful" menu in select locations. In an effort to offer healthier options for customers, the menu consists of six new subs under 500 calories and four new salads under 600 calories. The new subs contain the same amount of meat as that of a medium-sized sandwich, but are made using smaller portions of cheese and mayonnaise, and come on a roll that is 1/3 smaller than the bread used for medium-sized subs. Salads are made to order with a variety of new ingredients including romaine lettuce, pepperoncini, Kalamata olives, mozzarella cheese, green bell peppers, cucumbers, and a new lite Italian dressing. The menu was implemented system wide in March 2014. 
As of December 2016, there were over 1,030 restaurant locations in 44 states, Puerto Rico and Canada.  On October 25th, 2015, Firehouse Opened the first international location in Oshawa, Ontario Canada.
As of early 2016, the company planned to have 1,000 locations by the end of the year and to have a location in Mexico in 2016 as well.
- Harry Wessel (2005-04-25). "Sub shops battle for business.". The Orlando Sentinel. Orlando, Florida.
- Nancy Dearing Rossbacher and Stephen W. Sylvia (2007-03-29). "Restaurant flaunts firefighter-themed decor". The Free Lance-Star.
- Alison Trinidad (2006-11-15). "Firehouse Subs earns company of the year award.". Florida Times-Union. Jacksonville, FL.
- Katharine Kim and Annika Stensson (2006-09-11). "National Restaurant Association Recognizes Firehouse Subs with Restaurant Neighbor Award for Hurricane Relief Efforts." (Press release). National Restaurant Association.
- Mark Chediak (2006-01-30). "Firehouse Subs to roll out at least 100 new shops.". The Orlando Sentinel. Orlando, Florida.
- Mills, Gary: "Firehouse Subs will be first national chain to use Coca-Cola Freestyle at all locations" Florida Times-Union, August 4, 2011
- Mills, Gary. "Firehouse Subs tests new Under 500 Calorie menu in Jacksonville restaurants". jacksonville.com. Retrieved 1 December 2015.
- "Our Story". Firehouse Subs. Retrieved 11 April 2013.
- Samantha Cortese (December 5, 2013). "New sandwich shop serves community, first responders". KESQ/CBS Local 2. Retrieved December 5, 2013.
- Jacksonville Business Journal, April 4, 2016
- Andrea Jares (2004-09-25). "Florida-based Firehouse Subs chain wants to open 100 in Dallas-Fort Worth area". Fort Worth Star-Telegram. Fort Worth, Texas.
- Clarey, Brian (2007-03-14). "It's hot and cold in the Firehouse". Yes! Weekly.
- James, Emma (2007-03-07). "Firehouse Sub CEO connects with owners". Hattiesburg American.
- Aanerud, Chris (2007-03-08). "Firehouse Subs -- The five-dollar fire drill". Orlando CityBeat.
- Article: Firehouse Subs to roll out at least 100 new shops.(Company Profile) | AccessMyLibrary - Promoting library advocacy