Cambridge Analytica, the Trump-campaign data firm embroiled in scandal over its misuse of Facebook accounts, suspended Chief Executive Officer Alexander Nix after he was filmed bragging about dirty tricks. But the business\u2019s ties to Nix and dubious tactics run deep. He retains a large ownership stake in Cambridge Analytica\u2019s affiliated companies, and many of its top executives share his history of questionable campaign techniques. Nix remains a director and retains partial ownership of Cambridge Analytica\u2019s British affiliate, SCL Group, which continues to work on political campaigns around the world and for governments. It signed a contract with the U.S. State Department last week. SCL also has deep ties to the U.K.\u2019s Conservative Party, forcing Prime Minister Theresa May to distance her party from the firm. British lawmakers are calling for an investigation into SCL\u2019s activities and why the Ministry of Defense granted the company access to secret government documents. The company said bribes and fake IDs \u201cdo not represent the values or operations of the firm\u201d and Nix denies he engaged in such activities. Cambridge Analytica and SCL share a London office and many staff members. Receptionists say \u201cCambridge Analytica\u201d when answering calls to SCL\u2019s London phone number. Cambridge Analytica also takes credit on its website for many of SCL\u2019s political campaigns. In an interview with Bloomberg last year, Nix said the two companies overlap and share methodology and data analytics. But even he seemed at a loss to define the border between them. \u201cThere\u2019s a relationship there,\u201d Nix said, adding when pressed: \u201cIt\u2019s just not clear what the relationship is.\u201d Nix, with his mother and sister, still owns roughly 25 percent of SCL Group, according to company records. Neither Cambridge Analytica nor SCL returned calls seeking comment for this story. Cambridge Analytica is partly owned by the family of hedge-fund chief Robert Mercer, a big donor and supporter of President Donald Trump, but Nix\u2019s ties to the family go far beyond that link. Earlier this year, Nix joined other SCL colleagues on the board of a new company, Emerdata Ltd., which shares an address with SCL. This month, Mercer\u2019s daughters Rebekah and Jennifer joined Emerdata\u2019s board, according to Companies House, a British government website. Emerdata Other Emerdata directors include Johnson Ko Chun Shun, deputy chairman of Hong Kong-based Frontier Services Group, which is chaired by Blackwater Security Consulting founder and Trump backer Erik Prince. Also on the board is Cheng Peng, whose address is the same as Luk Fook Financial Services, the parent company of the firm that helped Frontier place new shares last year. Emerdata was set up in 2017 by Julian Wheatland, the chairman of SCL, and Alex Tayler, Cambridge Analytica\u2019s chief data officer, who was appointed to replace Nix as CEO while the company conducts its investigation. Tayler and Wheatland resigned from Emerdata in January. Tayler, who earned a Ph.D. in chemical engineering from University of Cambridge, worked side-by-side with Nix on Trump\u2019s 2016 election campaign. In an interview last year, Tayler told Bloomberg that Cambridge Analytica helped the campaign predict rural-voter turnout and target messages. Tracker Poll \u201cThe methodology is about listening to your audience through large-scale polling and research married with data about those individuals that you acquired from different sources,\u201d he said. He said the company ran a weekly \u201ctracker poll\u201d in every U.S. state that allowed the Trump campaign to gauge how its message was resonating and then shift resources accordingly. Previously, SCL worked on hundreds of election campaigns around the world, from the Caribbean to Latvia and Nigeria, where it sometimes engaged in questionable tactics, such as discouraging opposition voters, according to the company\u2019s sales documents. Nix denies that SCL has ever \u201cundertaken any campaign to discourage voting or undermine the democratic process.\u201d Mark Turnbull, managing director of Cambridge Analytica\u2019s political arm, remains at the company after being caught on camera talking about how the firm could push out damaging material on an opponent through social media without leaving a trace. Into The Bloodstream \u201cWe just put information into the bloodstream of the internet and then watch it grow, give it a little push every now and again,\u201d he was filmed telling an undercover reporter posing as a potential client from Sri Lanka. Turnbull joined Cambridge Analytica and SCL in May 2016 to work on election campaigns. He\u2019d spent 16 years at Bell Pottinger, the London public-relations firm, where he focused on \u201cstabilisation, counter-radicalisation and democratic reform in zones of conflict\u201d according to his LinkedIn profile. Among Turnbull\u2019s jobs at Bell Pottinger was overseeing the company\u2019s activities in Iraq. Bell Pottinger worked on propaganda campaigns for the U.S. and British Coalition Provisional Authority in the wake of the U.S. invasion in 2003 and later had a contract with the U.S. military. The firm played a key role in helping the campaigns of Iraqi political candidates favored by the U.S. and British. Later, it worked to combat Al Qaeda in Iraq. Fake News Bell Pottinger\u2019s tactics included producing phony television news reports as well as fake terrorist propaganda videos containing computer code that allowed Western intelligence agencies to track anyone who watched, according to a 2016 report from the London-based Bureau of Investigative Journalism, a not-for-profit reporting organization. The man who awarded Turnbull\u2019s Bell Pottinger unit its first Iraq contract was Ian Tunnicliffe, then a British colonel who was running strategic communications for the U.K. defense ministry. Tunnicliffe, now retired, has been a member of SCL\u2019s advisory board. He didn\u2019t respond to emails seeking comment. SCL also stoked ethnic tensions in Eastern Europe and sprayed fake graffiti in the Caribbean, according to the firm\u2019s own sales documents. Its defense business claims in pitch documents to have worked for clients as wide-ranging as the Libyan National Transitional Council, NATO and the U.K. Foreign Office. It says it worked in Pakistan for the U.S. Department of Defense and the U.S. Pacific Command in India on countering radicalization. SCL recently signed a contract with the U.S. State Department for market research and public-opinion polling, according to a federal procurement database. The one-year contract, signed last week, is worth $496,232, according to the database. Deep Ties The firm also has deep ties to the British defense establishment and Conservative Party. Its first chairman was Geoffrey Pattie, a defense minister under Margaret Thatcher. In addition to Tunnicliffe, the advisory board has included retired Rear Admiral John Tolhurst and Ivar Mountbatten, the great-nephew of Louis Mountbatten, the military hero and Queen Elizabeth\u2019s cousin. Jonathan Marland, a former Conservative Party treasurer who served as a minister for business under former Prime Minister David Cameron, is a shareholder. Marland told the Guardian newspaper he hadn\u2019t had a role in running SCL following his initial investment and had refused requests to introduce the firm to Conservative Party officials. Roger Gabb, a former British Army officer who later made his fortune as a wine distributor and wholesaler, is also a major SCL shareholder. A founding director who, with his family, still controls about 25 percent of the firm\u2019s shares, Gabb has also been active in the Conservative Party and the campaign for the U.K. to leave the European Union. He donated 500,000 pounds ($705,300) to the party in 2006. In 2016, he was fined 1,000 pounds by the U.K.\u2019s Electoral Commission for failing to disclose that he had helped purchase local newspaper advertisements supporting the leave side in the Brexit referendum.