Question: PeriShip exclusively uses an American multinational courier delivery services company that is known for its overnight shipping service, and is headquartered where?

Context paragraphs:
PeriShip: PeriShip is a logistics provider for the perishable food industry.  It was founded in 2001, and is based in Branford, Connecticut.  The company exclusively uses FedEx for transportation.

Fastway Couriers: Fastway Couriers is a courier delivery services corporation headquartered in Napier, New Zealand.  The company currently operates in Australia, New Zealand, Ireland (including the North), and South Africa.

Muller &amp; Phipps: Muller & Phipps is a Pakistani company which is involve in courier delivery services and mobile phone distribution.  The company is headquartered in Karachi, Pakistan.

Harbel Tapper: The Bulk carrier Harbel Tapper was launched in 1981 from the Koyo Dockyard, Mihara, Japan.  "Harbel Tapper" was operated by L&C Shipping Lines, the dedicated shipping service of Firestone Natural Rubber Company.  The ship, along with its sister ship the "Harbel Cutlass", provided the only direct shipping service between Liberia and the United States.  The ship typically completed six round-trip voyages a year, carrying both bulk liquid and dry cargo.  On trips to the U.S., the ship carried liquid latex and block rubber.  To Liberia and West Africa, the ship carried rice, medical supplies, vehicles, equipment, fertilizer and all the other supplies needed to support Firestone Liberia operations, as well as third party cargo.  "Harbel Tapper" unloaded directly into terminals in Fall River, Massachusetts; Baltimore; and Savannah, Georgia.  In addition, the ship also called at the ports of Norfolk, Virginia, and Lake Charles, Louisiana, where it then loaded rice for West Africa.

CDNetworks: Founded in 2000, CDNetworks is a full-service content delivery network (CDN) which provides technology, network infrastructure, and customer services for the delivery of Internet content and applications.  The company is positioning itself as a multinational provider of content delivery services, with a particular emphasis on emerging Internet markets, including South America, India and China.  It has 400 employees and unknown revenue.  Its CDN network consists of 169 Point of Presence (PoPs) on six continents, with over 30 locations in Russia and China.  Services include CDN, video acceleration, DDoS protection, cloud storage, cloud access security broker (CASB), web application firewall (WAF) and managed DNS with cloud load balancing.  Key differentiators include a large number of global PoPs, good network presence in China and Russia, and high-profile clients such as Forbes, Samsung and Hyundai.  CDNetworks has offices in the U.S., Korea, China, Japan, UK and Singapore.

Longhao Airlines: Guangdong Longhao Airlines（SC：广东龙浩航空） is a cargo airline based in Guangzhou, China.  It operates domestic freight services and have cooperation with SF Express, a Chinese delivery services company.  The parental company is Guangdong Longhao Inc.  Address：Guangsheng International Building 19F，No.17 Zhujiang West Road，Zhujiang New Town，Tianhe District，Guangzhou City，Guangdong（SC：广东省广州市天河区珠江新城珠江西路17号广晟国际大厦19楼）.

TNT Express: TNT Express is an international courier delivery services company, now a subsidiary of FedEx but originally with headquarters in Hoofddorp, Netherlands.  The firm has fully owned operations in 61 countries and delivers documents, parcels and pieces of freight to over 200 countries.  The company recorded sales of €6.91 billion in 2015.  Its major competitors include United Parcel Service (UPS) and DHL.  TNT's competitor FedEx reached an agreement to buy the company in April 2015, which was completed on 25 May 2016.

SF Express: SF Express (Group) Co., Ltd. (, ) is a Chinese delivery services company based in Shenzhen, Guangdong, China.  It is the second largest courier in China, after China Post, and it provides domestic and international express delivery solutions to a wide array of customers.  SF Express has a fleet of 31 cargo aircraft, of which 13 are owned by its subsidiary SF Airlines.  SF Express completed a backdoor listing in 2017, after an asset swap with the now defunct Maanshan Dintai Rare Earth & New Materials Co.

FedEx: FedEx Corporation is an American multinational courier delivery services company headquartered in Memphis, Tennessee.  The name "FedEx" is a syllabic abbreviation of the name of the company's original air division, Federal Express (now FedEx Express), which was used from 1973 until 2000.  The company is known for its overnight shipping service, but also for pioneering a system that could track packages and provide real-time updates on package location (to help in finding lost packages), a feature that has now been implemented by most other carrier services.

Allied Express: Allied Express Transport (Allied Express) is an Australian courier delivery services company with a headquarter in Chullora, Sydney.  Allied Express won the ‘Excellence in Customer Service Award’ at the 2009 ANZ Private Business Awards.

Supporting paragraphs: PeriShip FedEx
Answer: Memphis, Tennessee