Financial service companies need a regulated subsidiary in an EU country to offer products across the bloc, which could prompt some to move some operations out of Britain if it loses access to the European single market.

If this happens, almost 10,000 finance jobs could move overseas, a Reuters survey found.

Following are related stories about top banks (in alphabetical order):

ASSOCIATION OF FOREIGN BANKS IN GERMANY

The association expects 3,000 to 5,000 new jobs in Frankfurt over the next two years, its head Stefan Winter, of UBS, told Welt am Sonntag in June. He said he expected 12 to 14 major banks to expand their Frankfurt sites significantly or build new ones.

BANK OF AMERICA CORP

Bank of America (>> Bank of America) has picked Dublin as a new base for its EU operations.

The bank said in August that its businesses and results could be adversely affected and it may have to incur additional costs if Brexit limited the ability of its UK entities to conduct business in the EU.

BARCLAYS

Barclays (>> Barclays) has signed a lease agreement for more office space in Dublin as it prepares to expand its operations there to cope with the impact of Brexit.

Chief Executive Jes Staley has said that the group will keep the bulk of its activities in Britain and any changes to how the bank operates would be small and manageable.

BNP PARIBAS

BNP Paribas (>> BNP Paribas) may move up to 300 London investment bank staff because of Brexit, depending how clients adapt and the French bank's efforts to win new UK business, a source said.

The company had 3,123 staff in its corporate and institutional bank in Britain at end-2016, down from 3,294 a year earlier, internal documents seen by Reuters showed.

CITIGROUP

Citigroup (>> Citigroup) said its private bank is to set up a booking centre in Luxembourg to ensure it can continue to serve EU clients after Britain leaves the bloc in 2019.

The U.S. bank has said it may need to create 150 new jobs in the EU and confirmed it would headquarter its EU trading operations in Frankfurt. It had previously said it would move a "couple of hundred" jobs outside London.

The company's chief executive for Europe, the Middle East & Africa told a French newspaper that the bank was applying for a licence to conduct sales and trading activities in France.

CREDIT AGRICOLE

Credit Agricole (>> Crédit Agricole), France's third-biggest listed bank, could relocate about 100 employees from its London hub to France out of 1,000 based there in the case of a "hard" Brexit, its chief executive said.

The group is to move its European government bonds trading platform from London to Paris in September 2017, a spokeswoman told Reuters.

CREDIT SUISSE

Credit Suisse's (>> Credit Suisse Group) Chief Executive Tidjane Thiam said in September that his bank is relatively well placed to deal with Brexit and that only 15-20 percent of volumes in the investment bank would be affected.

DAIWA SECURITIES GROUP

Daiwa Securities Group (>> Daiwa Securities Group Inc) said it will set up a subsidiary in Frankfurt, which its head had previously touted as its favoured destination as London-based staff could easily be transferred to ots investment banking branch in the German city.

Japan's No. 2 brokerage has said it would still keep staff in London even after Brexit. It has 450 staff working in the EU now, mostly in the British capital.

DEUTSCHE BANK

Deutsche Bank (>> Deutsche Bank) is beefing up its presence in Frankfurt. Chief Executive John Cryan said the German lender expected to add new jobs in Frankfurt, where it will replicate a structure that is interchangeable with its London operations and evolve as Brexit negotiations unfold.

The group had warned in April that up to 4,000 UK jobs could be moved to Frankfurt and other EU locations - the highest potential move of any bank.

EUROCLEAR

Settlement bank Euroclear is looking at setting up a branch or subsidiary to provide a route between its UK and Irish markets, the head of its UK and Irish operation said.

FRENCH BANKING FEDERATION

French banks could shift about 1,000 jobs from London to Paris to keep staff in the EU, the French Banking Federation said.

GOLDMAN SACHS

Goldman Sachs (>> Goldman Sachs Group) is considering moving up to 1,000 staff to Frankfurt because of concerns over Brexit, Handelsblatt reported in January.

The U.S. bank will begin moving hundreds of people out of London before any Brexit deal is struck as part of its contingency plans, the CEO of its European arm said in March.

Wolfgang Fink, co-chief of Goldman Sachs in Germany, said the bank may triple or quadruple its presence in Frankfurt.

The bank has since agreed to lease office space at a new building in Frankfurt as it prepares for Brexit, a spokesman for the bank said.

On Oct. 19 Chief Executive Lloyd Blankfein said he would be spending a lot more time in Frankfurt as the bank pushes ahead with plans to make the German city a major base.

HSBC

HSBC (>> HSBC Holdings) could spend up to $300 million (£228 million) moving jobs and parts of its business to Paris, CEO Stuart Gulliver said. The estimate includes the costs of relocating up to 1,000 jobs to the French capital and associated legal fees.

INVESTEC

Investec (>> Investec)(>> Investec Ltd) is considering converting its London bank's Dublin branch into a subsidiary to ensure it has continued access to the European single market, Chief Executive Stephen Koseff told The Telegraph in May.

However, the Anglo-South African lender and asset manager would see only a small part of its business affected by Brexit, the newspaper quoted Koseff as saying. (http://bit.ly/2qywZzY)

JPMORGAN

JPMorgan Chase JPM.N, the biggest U.S. bank by assets, said in July that the bank would probably use Frankfurt as the legal domicile of its European operations after Brexit, though jobs could be moved elsewhere as well.

The U.S. bank has also agreed to buy a Dublin building with room for 1,000 staff. However, the bank, which employs about 500 people in Dublin, did not say how many jobs would be created or whether any positions would be moved from the United Kingdom.

JPMorgan has chosen Warsaw to host a new global operations centre that will employ several thousand people over the next few years, Polish Deputy Prime Minister Mateusz Morawiecki said.

The U.S. bank plans to hire more than 3,000 people in its new global operations centre in the next three years, the Polish Development Ministry said in September, though the moves are not directly linked to Brexit.

JULIUS BAER

Julius Baer, Switzerland's third-biggest private bank, is moving its European hub from Frankfurt to Luxembourg but will continue to keep its options open in London, chief executive Boris Collardi has said.

Julius Baer is opening three new UK offices as it looks to the bank for wealthy residents spooked by Brexit.

LLOYDS BANKING GROUP

Lloyds Banking Group (>> Lloyds Banking Group), Britain's largest mortgage lender and the only major British retail bank without a subsidiary in another EU country, is close to selecting Berlin as a European base to secure EU market access.

MORGAN STANLEY

Morgan Stanley (>> Morgan Stanley) has chosen Frankfurt to be a new base for its EU operations, a source familiar with the matter said, adding that 200 people could move.

One source said the U.S. bank will have to move up to 1,000 jobs in sales and trading, risk management, legal and compliance, as well as slimming the back office in favour of locations overseas.

Morgan Stanley could initially shift 300 staff from Britain after its EU exit and is scouting for office space in Frankfurt and Dublin, Bloomberg News reported in February.

The bank plans to double the number of its bankers in Frankfurt to 400, Welt am Sonntag reported in June.

MIZUHO

Japan's Mizuho Financial Group (>> Mizuho Financial Group, Inc.) said it would set up a subsidiary in Frankfurt, the latest Japanese bank to choose the German city as its new base in the European Union as Britain prepares to leave the bloc.

MITSUBISHI UFJ FINANCIAL GROUP

Japan's Mitsubishi UFJ Financial Group Inc (>> Mitsubishi UFJ Financial Group Inc) said it has picked Amsterdam as its EU investment banking base.

NOMURA

Nomura Holdings Inc (>> Nomura Holdings Inc) is applying for a licence to operate a new entity in Frankfurt.

NORTHERN TRUST

Asset management company Northern Trust has said it will set up an EU banking base in Luxembourg.

Around a third of Northern Trust's institutional clients have asked it to ringfence British exposure from their broader European portfolios to protect them from Brexit-related risks.

RBS

Royal Bank of Scotland (>> Royal Bank of Scotland Group) said it may move up to around 150 jobs to Amsterdam after Brexit.

RBS also said it was in talks with the Dutch central bank to use a licence it has in the Netherlands to conduct some Natwest Markets business there if it becomes necessary.

RBS Chief Executive Ross McEwan said the bank will enact its Brexit plans by the end of March 2018 if no clarity emerges about Britain's ability to retain access to the single market.

SOCIETE GENERALE

Societe Generale (>> Société Générale) could move 400 corporate and investment banking jobs from London, with most going to Paris, Chief Executive Frederic Oudea said.

Oudea said the possible move of jobs after Brexit would affect 300-400 investment banking jobs out of 2,000 it has overall for that business in London.

STANDARD CHARTERED

Standard Chartered will need to spend around $20 million making Frankfurt its European base in order to secure market access to the European Union when Britain leaves the bloc, Chief Executive Bill Winters told Reuters.

SUMITOMO MITSUI FINANCIAL

Sumitomo Mitsui Financial Group Inc (>> Sumitomo Mitsui Financial Group, Inc.) said its core banking unit, Sumitomo Mitsui Banking Corp has decided to set up a subsidiary in Frankfurt.

TD SECURITIES

TD Securities, the investment banking arm of Toronto-Dominion Bank Group (>> Toronto-Dominion Bank), said it would expand operations in Dublin to bolster its European business in response to uncertainty triggered by Brexit.

UBS

UBS (>> UBS Group) is weighing up whether to move banking jobs in London to Frankfurt, Madrid or Amsterdam to cope with Britain's planned EU departure, Chief Executive Sergio Ermotti said.

The bank has estimated that it would need to "move 1,500 people" from London to the EU to retain full passporting rights, according to Chairman Axel Weber. That would be more than a quarter of its 5,500 staff in London.

The world's biggest wealth manager has also set up a bank in Frankfurt to consolidate most of its European wealth management operations.

(Compiled by Noor Zainab Hussain and Esha Vaish in Bengaluru; editing by Jason Neely)