Devina Rankin
37
Treasurer & VP
Waste Management

Rankin has managed four capital market transactions that raised$2 billion for $13.4 billion Waste Management, executed a $2billion revolving credit facility, and implemented improvements incash and interest-expense forecasting. Prior to joining the company10 years ago, she was a senior auditor at Ernst & Young andArthur Andersen. Rankin has a B.B.A. and an M.S. in accounting fromTexas A&M University.

See Part I of the 2012 30 Under 40 Slideshow here and Part II here.

For the complete 2012 30 Under 40 list, see Ascending the Corporate Ladder. For last year's list,see Readyto Take Charge.

Pieter Roeloffs
35
Head of M&A & VP
Wolters Kluwer

Since joining the $4.5 billion global information servicescompany in 2006, Roeloffs has executed more than 90 acquisitionsand divestitures for Wolters Kluwer in Europe and Asia. He joinedthe company in 2006 after working in business development atPhilips and in the corporate finance practice atPricewaterhouseCoopers. Roeloffs has a B.B.A. and an M.B.A. infinancial management from Erasmus University.

Petra Rosenauer
39
Senior director treasury & head of cashmanagement
Flextronics International

Vienna-based Rosenauer manages the $29 billion contractmanufacturer's liquidity in Europe and has set up cash poolingcomprising 75 entities that covers most of Europe. With her team,she is responsible for meeting tight cash concentration targets.Prior to joining Flextronics, Rosenauer worked in finance atWestern Union. She has a master's degree in social and economicscience from Vienna Business University.

Michelle Scheer
38
VP, finance
Thomson Reuters

As head of finance and operations for Thomson Reuters' corporatetax business, Scheer has driven revenue growth and increased theunit's profit margin. Earlier, as assistant treasurer, she led thedevelopment of a foreign exchange risk management strategy. Scheerjoined Thomson Reuters in 2009 after working in the treasurer'soffice at General Motors. She has a B.S. in mathematics from MITand an M.B.A. in finance from Wharton.

Ravi Varma
31
VP, global portfolio analysis & strategyoversight
American Express

As head of a critical function in the risk management unit of$32.3 billion American Express, Varma has led efforts to assessemerging risks and work out policies and product changes to addressthem. He started his career as an analyst at Arthur Andersen. Varmahas a B.A. in economics from the University of Delhi and an M.S. inquantitative economics from Indian Statistical Institute.

EmilyWaldorf
35
Director, corporate development
Campbell Soup Co.

As head of M&A and business development for the $7.7 billionfood company, Waldorf led the due diligence and valuation effortsfor Campbell's $1.55 billion acquisition of Bolthouse Farms, whichinvolved 20 work streams and a team of 74. Waldorf has worked forDiscovery Communications, the FBI, Johnson & Johnson andAT&T. She has a B.S. in finance from Penn State and an M.B.A.from Harvard Business School.

David Webb
37
Director, financial strategy
Ford Motor

As director of financial strategy for the $136.3 billionautomaker, Webb has led development of Ford Credit's capital andfunding strategies. He's in charge of the company's efforts aroundfinancial regulatory reform worldwide and led development of aninnovative fixed-income security, the Ford Upgrade Exchange LinkedNotes. Webb has a B.A. in economics from Wheaton College and anM.B.A. in finance from the University of Michigan.

ChristopherWinfrey
37
CFO & EVP
Charter Communications

At the $7.2 billion cable operator, Winfrey not only directs allof the financial functions but also has responsibility for theareas of supply chain management, revenue assurance and businessintelligence. Prior to joining Charter in 2010, he was CFO atUnitymedia in Germany. Winfrey has also worked at Cablecom and NTLEurope. He has a B.S. in accounting and an M.B.A. from theUniversity of Florida.

Thomas Wittman
38
Managing director
FedEx Express

Wittmann oversees financial planning and support for the airlinedivision of FedEx Express. He and his team play a key role in thecompany's management of its fleet of aircraft, such as the decisionto acquire 767s to retire aging MD10s and the introduction of theBoeing 777F. He joined FedEx Express in 1998 as an associatefinancial analyst. Wittman has a B.B.A. and an M.S. in economicsfrom the University of Mississippi.

Vienna Wong
35
Senior director, corporate mergers &acquisitions
PepsiCo

Wong leads the execution of strategic activities for $66.5billion PepsiCo. She has completed three transactions since joiningthe company in 2010, including the acquisition of Mabel, Brazil'sleading maker of cookies, crackers and snacks. Prior to joiningPepsiCo, Wong was an investment banker at JPMorgan, Lehman Brothersand Barclays Capital. She has a B.S. in finance and accounting fromWharton.

See Part I of the 2012 30 Under 40 Slideshow here and Part II here.