Question: What is that largest loyalty card scheme company in the UK that is managed by a company listed on the Toronto Stock Exchange?

Context articles: S&amp;P/TSX Composite Index
Thyme Maternity
Toronto Stock Exchange
FUN Technologies
Acceptance mark
Ted Pietka
Aimia (company)
CATS (trading system)
Nectar loyalty card
Unicard

The S&P/TSX Composite Index is the benchmark Canadian index, representing roughly 70% of the total market capitalization on the Toronto Stock Exchange (TSX) with about 250 companies included in it.
 The Toronto Stock Exchange is made up of over 1,500 companies.
 In September 2014, the S&P/TSX Composite Index posted its all-time high, 15,657.63.
 The surge in oil prices in 2014 had led the S&P/TSX Composite Index to attain this peak level as both the Energy and Financial Sectors primarily got a boost.
 It replaces the earlier TSE 300 index.
Thyme Maternity is Canada’s largest maternity fashion retailer, and it is owned by Reitmans, a publicly traded company listed on the Toronto Stock Exchange (TSX: RET, RET-A).
 Thyme Maternity sells trendy maternity fashions and nursing essentials through their locations in Canada, the United States and their website.
Toronto Stock Exchange (often abbreviated as TSX) is one of the world's largest stock exchanges.
 It is the ninth largest exchange in the world by market capitalization.
 Based in Toronto, it is owned by and operated as a subsidiary of the TMX Group for the trading of senior equities.
 A broad range of businesses from Canada and abroad are represented on the exchange.
 In addition to conventional securities, the exchange lists various exchange-traded funds, split share corporations, income trusts and investment funds.
 More mining and oil and gas companies are listed on Toronto Stock Exchange than any other stock exchange.
FUN Technologies was an online game company based in Toronto.
 Founded in 2002 by Canadian businessmen Lorne Abony and Andrew Rivkin, FUN grew to become the world's largest provider of online casual games and fantasy sports, with over 35 million registered customers.
 FUN was publicly traded with a full listing on the London Stock Exchange in 2003 and Toronto Stock Exchange in 2004.
 Abony was its Chief Executive Officer when FUN was listed on the TSX, making him the youngest CEO of any company listed on the exchange.
An acceptance mark, in respect of credit cards, is a logo or design that indicates which card schemes an automated teller machine or merchant accepts.
 Common uses include decals and signs at merchant locations or in merchant advertisements.
 The purpose of the mark is to provide the card holder with information where his or her card can be used.
 An acceptance mark differs from the a card product name (such as American Express Black card, Eurocard), as it shows the card scheme (group of cards) accepted.
 An acceptance mark however corresponds to the card scheme mark shown on a card.
Ted Pietka (born May 30, 1967 in Człuchów, Poland) is a businessman.
 He graduated from Wilfrid Laurier University, Waterloo, Ontario, Canada and holds Master of Business Administration degree from London Business School, United Kingdom.
 Pietka is Supervisory Board Member in Boryszew S.A. (company listed on Warsaw Stock Exchange), Boryszew ERG S.A. and Hygienika S.A. From 2007 to 2009 he served as Managing Director, Strategy & Finance and Board Member of STC Investments.
 From 2004 to 2006, Pietka was Vice Chairman of the Management Board of GETIN Holding S.A. (company listed on Warsaw Stock Exchange).
Aimia, formerly Groupe Aeroplan, is a data-driven marketing and loyalty analytics company based in Montreal, Quebec, Canada.
 Aimia manages various loyalty programs including Aeroplan in Canada, Nectar (UK and Chile) and provides loyalty strategy, program development and management services to clients underpinned by product and technology platforms such as the Aimia Loyalty Platform and Smart Button, and through their analytics and insights business, including Intelligent Shopper Solutions.
 Aimia Inc. also owns stakes in loyalty programs, such as Club Premier in Mexico, Air Miles Middle East and Think Big, a partnership with Air Asia and Tune Group.
 It is publicly listed on the Toronto Stock Exchange.
CATS (Computer Assisted Trading System) was an automated exchange system developed by the Toronto Stock Exchange.
 It went live on November 18, 1977, with 90 stocks.
 CATS was introduced, piloted and developed by Harold B. Hofmann, then the Vice President of Operations at the Toronto Stock Exchange.
 CATS was one of the first technologies allowing for a full automation of the price-setting process in a stock exchange.
 This technology was implemented in several other stock exchanges in the 1980s.
 In some cases, it was used as an assistance to open-outcry, but in others it allowed for a full dismantlement of the open-outcry institution.
 The Paris Bourse purchased this system in the early 1980s and implemented it as CAC (Cotation Assistée en Continu).
Nectar is a loyalty card scheme in the United Kingdom, run by Aimia.
 The scheme is the largest in the United Kingdom, and comprises a number of partner companies including "The Daily Mail", Sainsbury's and BP.
 It launched in 2002 with initially four partner companies, and by 2010 had grown to include over 14 companies and over 400 online retailers.
 Loyalty Management Group established the scheme, replacing the existing schemes of three of the four launch companies, and was purchased by the Canadian Groupe Aeroplan (now Aimia) in 2009.
UNICARD is a loyalty card scheme run by Universal Card Corporation.
 It is the most popular loyalty card in Georgia.
 First UNICARD was issued in 2010; Collection of loyalty points was available in more than 100 partner companies combining more than 500 leading trading points.
 Since 2016 more than 250 companies joined UNICARD network.
 Partner companies participating in UNICARD loyalty card program reward their customers every time card holders make a purchase.