Subway is a privately held American fast food restaurant franchise that primarily sells submarine sandwiches (subs) and salads. Subway is one of the fastest-growing franchises in the world  and, as of June 2017, has approximately 45,000 stores located in more than 100 countries. More than half of the stores are located in the United States.    It is the largest single-brand restaurant chain and the largest restaurant operator in the world.    
As of 2017, the Subway Group of companies is organized as follows. Subway IP Inc. is the owner of the intellectual property for the restaurant system. Franchise World Headquarters, LLC leads franchising operations. FWH Technologies, LLC owns and licenses Subway's point of sale software. Franchisors include Doctor's Associates Inc. in the U.S.; Subway International B.V.; Subway Franchise Systems of Canada, Ltd.; etc. Advertising affiliates include Subway Franchisee Advertising Fund Trust, Ltd.; Subway Franchisee Advertising Fund Trust, B.V.; Subway Franchisee Canadian Advertising Trust; etc.  
Subway's international headquarters are in Milford, Connecticut, with five regional centers supporting the company's international operations. The regional offices for European franchises are located in Amsterdam (Netherlands); the Australian and New Zealand locations are supported from Brisbane (Australia); the Asian locations are supported from offices in Beirut (Lebanon) and Singapore; and the Latin American support center is in Miami. 
In 1965, Fred DeLuca borrowed $1,000 from friend Peter Buck to start "Pete's Super Submarines" in Bridgeport, Connecticut, and in the following year, they formed Doctor's Associates Inc. to oversee operations of the restaurants as the franchise expanded.  The holding company derives its name from DeLuca's goal to earn enough from the business to pay tuition for medical school, as well as Buck's having a doctorate in physics. Doctor's Associates is not affiliated with, nor endorsed by, any medical organization.  In 1968, the sandwich shop was renamed "Subway". 
The first Subway on the West Coast was opened in Fresno, California, in 1978.  The first Subway outside of North America opened in Bahrain in December 1984.  The first Subway in the United Kingdom was opened in Brighton in 1996.  In 2004, Subway began opening stores in Walmart supercenters and surpassed the number of McDonald's locations inside U.S. Walmart stores in 2007. 
Since 2007, Subway has consistently ranked in Entrepreneur magazine's Top 500 Franchises list. It ranked #2 in 2012. It also ranked #2 on the "Fastest Growing Franchise" and "Global Franchise" lists.  At the end of 2010, Subway became the largest fast food chain worldwide, with 33,749 restaurants – 1,012 more than McDonald's. 
In January 2015, Suzanne Greco took over the running of Subway from her brother Fred DeLuca, who had been CEO, but had been ill with leukemia for two years (he died in September 2015), and became president and CEO.  
In 2016, Subway closed hundreds of restaurants in the U.S., experiencing a net loss in locations for the first time. However, with 26,744 locations, it remained the most ubiquitous restaurant chain in the U.S. (with McDonald's in the #2 spot).  Also in 2016, Subway announced a new logo for the franchise, to be implemented in 2017.  On July 17, 2017, Subway unveiled redesigned restaurants, dubbed "Fresh Forward." Features include self-order kiosks; USB charging ports at tables; and new menu items, including additional condiments, and bread made without gluten. The company is piloting the changes at 12 locations across the United States, Canada, and the United Kingdom, with many features expected to be implemented into stores worldwide by the end of 2017. 
As of June 2017, Subway has approximately 45,000 stores located in 112 countries. These locations are largely concentrated in North America, with about 26,400 in the United States (plus about 3,300 in Canada and 1,000 in Mexico). Outside North America, the countries with the most locations are Australia (approximately 1,400), Brazil (approximately 2,200) and the United Kingdom (approximately 2,300). 
Subway also sells breakfast sandwiches, English muffins, and flatbread. In 2006, "personal pizzas" debuted in some US markets. These are made to order (like the subs) and heated for 85 seconds. Breakfast and pizza items are only available in some stores. In November 2009, Subway signed a deal to serve exclusively Seattle's Best Coffee coffee as part of its breakfast menu in the US. 
A 2009 Zagat survey named Subway the best provider of "Healthy Options" (in the "Mega Chain" category). Subway was also first in "Top Service" and "Most Popular" rankings. It placed second in "Top Overall", behind Wendy's. 
On April 18, 2017, Subway announced the addition of paninis to its menu. Chipotle Steak & Cheese, Triple Cheese, Chicken Cordon Bleu, and Italian B.M.T. Melt were the four variations announced. 
Subway's menu varies between countries, most significantly where there are religious requirements relating to the meats served.
In 2006, the first kosher Subway restaurant in the United States opened, in a suburb of Cleveland, Ohio in the Mandel JCC of Cleveland. Former Subway spokesman Jared Fogle attended the opening. A press release stated, "With slight modifications, such as no pork-based products, and the use of soy-based cheese product, the menu is virtually identical to that of any other Subway restaurant."  Other openings soon followed, briefly making Subway one of the largest U.S. kosher restaurant chains.  At their peak, twelve kosher Subway locations were open in the U.S, including Kansas City and 5 in New York. As of 2011, only five remain Cleveland, Miami, Los Angeles and two stores in Maryland.  Franchisees who failed noted a lack of support from the parent location in advertising, higher costs of kosher food and supervision, the inability to remain open on Saturdays, and that customers who do not keep kosher prefer the original menu and prices. 
Subway opened its first restaurant in India in 2001 in New Delhi. Subway restaurants in India do not serve beef and pork products in deference to Hindu and Muslim beliefs respectively and sell an extended vegetarian range due to the large number of vegetarians in the country. There are 591 Subway restaurants in 68 cities of India as of January 2017.  On September 4, 2012, Subway opened its first all-vegetarian outlet on the campus of Lovely Professional University (LPU) in Jalandhar, Punjab.  On March 6, 2013, Subway opened its second all-vegetarian outlet also offering Jain food in Paldi, Ahmedabad. 
In the United Kingdom and Ireland, Subway has reduced salt content across its entire range by 33% and has committed to further reductions, in line with government targets.  Subway's range of "Low Fat" subs is endorsed by the charity Heart Research UK. 
Subway used the advertising slogan "Eat Fresh", and focused on how its sandwiches were made from freshly baked bread and fresh ingredients, in front of customers to their exact specifications, by employees which Subway called "Subway Sandwich Artists".
In November 2007, Subway's US commercials featured the cartoon character Peter Griffin (from FOX's Family Guy) promoting its new Subway Feast sandwich.  Subway has also used "instant win" games, based on the game Scrabble.
Subway ran a product placement campaign in the US TV series Chuck since its first season. As ratings dwindled in the second season, a campaign to "save Chuck" was launched for fans, encouraging them to purchase a footlong sub from Subway on April 27, 2009, the date of the season finale. Tony Pace, Subway's marketing officer, called it the best product placement the restaurant chain has done "in several years." 
To celebrate National Sandwich Day on November 3, 2015, Subway offered a Buy One sandwich, Give One sandwich free promotion. 
Jared Fogle was a national spokesman for the company in the US starting in January 2000, giving talks on healthy living and appearing in advertisements. Fogle first came to attention in his native Indiana by claiming that he lost over 200 pounds in part by eating at Subway. From 2008, he was featured less often as the company marketed with more emphasis on its "5 dollar footlong" campaign.  Subway attributed between one-third and one-half of its growth from 1998 to 2011 to Fogle, the equivalent of a tripling in size.  Subway cut ties with Fogle on August 18, 2015, amid expectations that he would plead guilty to child pornography and child molestation charges,  which were confirmed the following day.  He has since been sentenced to more than 15 years in federal prison. 
In December 2015, following the removal of Fogle from its marketing, Subway introduced a new marketing campaign, "Founded on Fresh". The campaign focuses on Subway's establishment and early history, and features Fred DeLuca, as played by his son, Jonathon. The new campaign downplays the use of jingles and celebrity endorsements (besides "targeted" sports marketing), in favor of focusing upon the qualities of its products, and specific products. Chief advertising officer Chris Carroll explained that the focus on fat, calories, and weight loss were "what fresh used to be", and that the new campaign would focus more on the sourcing of Subway's ingredients, such as its phase-out of antibiotic-treated meat. Carroll also explained that the new strategy was being developed prior to the controversy involving Fogle. 
In 2008, Subway began to offer all foot-long submarine sandwiches (excluding premium and double-meat varieties) for five dollars, in the continental United States and Canada, as a "limited time only" promotion. "Five Dollar Footlongs" quickly became the company's most successful promotion ever.  Upon the initial promotion's completion, customer response prompted Subway to create a permanent "$5 Footlong Everyday Value Menu" that offered some footlong sandwiches for $5. As of 2011, there has been a monthly rotating $5 footlong.
In October 2011, a similar promotion was launched in the United Kingdom. Customers can buy one of nine subs and any drink for £3 (for a six-inch sub) or £5 (for a footlong). 
On November 1, 2014, Subway discontinued the five-dollar footlong promotion, replacing it with the $6 six-inch select with a drink and a choice of cookies or chips.
In early 2017, Subway introduced its Italian Hero, and advertised it with a campaign describing it as an authentic Italian[-American] sandwich. Two comedic spots feature stereotypical Italian-American characters on and around the stoop of a New York / New Jersey tenement building, one including a cameo by sportscaster Dick Vitale. Another ad features Food Network's Jeff Mauro, the "Sandwich King", who is Italian-American,  discussing the nature and role of the different Italian meats and other ingredients.      
On December 28, 2015, Subway released a commitment to transition to a 100% cage-free egg supply chain by 2025. 
On April 28, 2017, Subway released a chicken welfare policy  that states that by 2024 or sooner, 100% of its U.S. chicken products will be produced in alignment with Global Animal Partnership (GAP) standards for higher welfare breeds, enhanced living environments (including lighting, litter, and enrichment), increased activity levels and optimized stocking density, and improved slaughter methods. To ensure compliance, Subway’s chicken suppliers will be third-party audited with updates communicated annually. 
The policy announcement followed a nationwide campaign led by high school animal activist Lia Hyman in coordination with the animal protection NGO The Humane League.  On April 20, 2017, Hyman and a group of activists traveled to Subway’s global headquarters in Connecticut to deliver more than 53,000 signatures from campaign supporters and held a demonstration outside the building after they were denied entry. 
Hepatitis A contamination
In September 1999, at least 32 customers in the north Seattle area contracted hepatitis A after eating food contaminated with the virus at two Subway outlets.  The virus, which is spread by eating or drinking food or water contaminated with infected feces, infects the liver causing nausea, vomiting, diarrhea, fatigue, and fever.  Subsequent investigations found that staff failed to adhere to thorough hand washing and the use of plastic gloves during food preparation.  A class-action lawsuit on behalf of 31 victims was resolved for $1.6 million.   The most seriously affected victim—a 6-year-old boy—suffered acute liver failure and required a liver transplant. He was awarded $10 million in an out-of-court settlement in 2001.  A previous outbreak of hepatitis A in 1996 had also involved a Subway outlet in the Seattle area, although no legal action had resulted. 
In April 2015, the Arkansas Department of Health issued a warning to the public that customers who had eaten at the Subway outlet in Morrilton, Arkansas, may have been exposed to infection after an employee tested positive for the virus.  
On February 2, 2007, KNXV-TV (with the help of the Arizona Department of Weights and Measures) reported that three of Subway's "Giant Sub" sandwiches, nominally each 3-foot (91 cm) long, were actually 2 feet 8 inches (81 cm), 2 feet 8.25 inches (81.92 cm), and 2 feet 8.5 inches (82.6 cm) long. The maximum variance in length allowed in Arizona is 3% (1.08 inches (2.7 cm), for a three-foot sub). The report also showed the boxes designed to store these sandwiches were 2 feet 10.75 inches (88.27 cm) in length; shorter than the maximum allowable variance. In response to the report, Subway said it was reevaluating its advertising, training and packaging materials with regard to the specific or implied length of Giant Subs, and was advising its franchisees to only discuss with customers the approximate number of expected servings and not a specific length of measurement. 
In January 2013, an Australian teen, Matt Corby, complained on Facebook that Subway's "footlong" sandwich was only 11 inches (28 cm) long, rather than 1 foot (30 cm). Subway responded by saying, "With regards to the size of the bread and calling it a footlong, 'Subway Footlong' is a registered trademark as a descriptive name for the sub sold in Subway Restaurants and not intended to be a measurement of length."
In 1995, Subway Sandwich Shops, Fred DeLuca, Peter Buck, and Doctor's Associates Inc. were held liable for breach of contract. An Illinois jury awarded more than $10 million in damages to Nicholas and Victoria Jannotta after finding lease and contract violations. The plaintiffs claimed the defendants had misrepresented the asset value of Subway Sandwich Shops (a leasing company used by Doctor's Associates for franchising purposes) while negotiating a 1985 lease agreement. 
The U.S. House of Representatives' small business committee studied the franchise industry from 1992 to 1998. Dean Sagar noted, "Subway is the biggest problem in franchising and emerges as one of the key examples of every abuse you can think of."  In 1989, the U.S. Small Business Administration refused small business loans to Subway franchise owners until Subway removed a contract clause which gave it the power to seize and purchase any franchise without cause. The Dallas Morning News reported Subway had seized American soldier Leon Batie Jr.'s Subway stores in 2006 while he was serving in Afghanistan.   He had been deployed to support Operation Enduring Freedom in March 2005, three years after buying his first restaurant.   Batie alleged Subway had violated the U.S. Servicemembers Civil Relief Act. He filed a federal lawsuit against Subway, which was dismissed. He then filed suit in state court, in Dallas County, Texas. Both parties settled on "mutually agreeable" and confidential terms in January 2010. 
United Kingdom VAT treatment
In October 2010, Subway franchisees in the United Kingdom lost a high court appeal, against paying standard VAT on all toasted subs, as required by HM Revenue and Customs. Thus, in the United Kingdom, a toasted sub attracts VAT, whereas a cold sub, eaten off the premises, does not. Competitors such as Quiznos & McDonald's do not pay VAT on similar food.   
In March 2012, Chancellor of the Exchequer, George Osborne announced plans to close the loophole that allows Subway competitors to offer hot food without paying VAT. This legislation was expected to come into force from October 2012 onward,  but the government withdrew plans to charge VAT on originally hot food being allowed to cool naturally on May 28, 2012.  In June 2012, Subway launched the "Toast the Tax" campaign to put pressure on the government to drop VAT on toasted sandwiches, as it has done for hot savouries. 
Casey's trademark case against Subway
On January 31, 2011, Subway lawyer Valerie Pochron, wrote to Casey's General Stores, a chain of Iowa-based convenience stores, demanding the small chain to cease using the term "footlong" in advertisements for its 12-inch sandwiches. Subway threatened to sue. Consequently, in February 2011, Casey's General Stores Inc. filed a petition in a U.S. District Court in Des Moines, seeking a legal declaration that the word "footlong" does not violate Subway's rights.  Casey's further sought a declaration that the word "footlong" is a generic description of a sandwich measuring one foot.   Before serving its complaint on Subway, Casey's voluntarily dismissed its action, ending the litigation. 
Subway's trademark application for "footlong" has yet to be approved by the federal government. Subway has attempted to register it with the United States Patent and Trademark Office twice. It filed on November 8, 2007,  and June 4, 2009.  A&W, Pizza Hut, KFC, Taco Bell (all of which are Yum Brands restaurants), Long John Silver's, and other restaurants are opposing that application. 
Subway made alterations to its bread after food blogger and activist Vani Hari gathered more than 50,000 signatures in a petition drive. Subway removed azodicarbonamide from its bread.  Before Vani Hari's petition, Subway had used azodicarbonamide as a bread conditioner, to whiten the dough and allow sandwich bread to bake more quickly. The ingredient is still used by other fast food restaurants. 
In August 2015, Vani Hari again petitioned Subway in conjunction with Natural Resources Defense Council, Friends of the Earth, the Center for Food Safety, U.S. Public Interest Research Group to commit to buying meat produced without the routine use of antibiotics and to provide a timeline for doing so.  In October 2015, Subway announced it would transition to chicken raised without antibiotics in 2016 and turkey within the following 2–3 years, and would also transition beef and pork raised without antibiotics by 2025.  
Soy protein in chicken products
In an investigation by the Canadian Broadcasting Corporation (CBC)'s consumer affairs television series Marketplace aired in February 2017, chicken from five fast food restaurants were lab-tested to determine constituents. While DNA testing found between 84.9% and 89.4% of the DNA from other restaurants' chicken products to be chicken DNA, with the remaining being unidentifiable plant DNA, on the two Subway chicken items tested, 53.6% and 42.8% of the DNA was found to be chicken, with the remainder being mostly soy. Although ingredients listings did show soy protein to be a constituent of both of the chicken products, Subway states that the proportion is less than or equal to 1%, and that the finding of about 50% soy DNA is not representative of the actual amount of soy in the product. Subway has called CBC's report "absolutely false and misleading" and demanded that it be retracted, a demand the CBC had not acceded to as of July 2017. Meanwhile, however, Subway Canada stated that it was investigating with its supplier to ensure that the proportion of soy protein was as per expectations.     
According to Subway's website, ingredients in U.S. stores may differ from ingredients in Canadian stores. Both countries include soy protein in chicken strips, but only the U.S. version states that it is present in quantities of 2% or less. The Canadian version includes soy as an ingredient in its chicken patty, but the United States version does not. 
In April 2017, Subway sued the CBC, as well as the reporter and two producers, for $210 million, alleging the CBC acted "recklessly and maliciously", and that "these false statements... were published and republished, maliciously and without just cause or excuse, to a global audience, which has resulted in pecuniary loss to the plaintiffs." The CBC stood by its reports, stating that the DNA tests were done by independent and credible experts.  The CBC's Emma Bédard stated that Subway has not provided any alternative explanation for the DNA test results obtained by the CBC.