The task is in some ways easier for BNP than for SocGen.
BNP, which has poached a Mizuho Financial banker to head its U.S. fixed income unit, is seen as more financially robust, with one of the highest regulatory capital ratios in Europe, and has a long-term dollar deposit base at its West-Coast retail franchise BancWest for potential funding.
However, BNP executives have said they are looking to build up fixed income operations in New York without having to rely on their own balance sheet resources by, for example, using private bond placements to match big U.S. institutional investors with European firms seeking funds.
SocGen, meanwhile, relies on bond markets to fund operations and is seen as less well-capitalized and more focused on trading activities - like commodities and equity derivatives - and hedge fund financing.
The bank is less vocal than BNP about its growth potential, though SocGen did poach several senior U.S. equity sales traders from Citigroup, RBS and UBS last month. SocGen is also hiring a trade finance associate, which some in the bank say is linked to its focus on natural resources.
A SocGen spokesman said the bank's commitment to natural resources and commodities was "unwavering".
"In the last two months, we in the recruiting industry have seen an uptick," said John Lee, a partner at Heidrick & Struggles in New York. "There is no broad-based hiring initiative but there is definitely hiring taking place across the board, both European and Japanese institutions."
Regardless of their ambitions in the United States, however, French banks are unlikely to have a cost-of-funding advantage against dollar-rich domestic banks or export-focused Asia.
"If you look at aircraft finance, or shipping, clients are extremely opportunistic ... They deal with whichever has the lowest price," said Yannick Naud, portfolio manager at Glendevon King. "I think Canadian and Japanese banks have the edge there."
There are also doubts the French will make a big return to the $2 trillion trade-finance market, which has seen big cutbacks by European players looking to reduce their exposure to a faltering global economy and to rebuild their capital bases.
"The deleveraging cutbacks just don't seem to be stopping," said Thierry Senechal, banking expert for the International Chamber of Commerce (ICC).
Bank for International Settlements data (BIS) shows that the best-capitalized European banks cut trade finance by 9.8 percent between the third quarter and fourth quarter of 2011.
However, Barclays' head of trade and working capital, Kah Chye Tan, said he was more sanguine about Europe's banks.
"A lot of these European banks continue to be very much in this business, if maybe a bit more moderate than before. One should never write them off."
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