One of the country's biggest lenders, Barclays (BARC.L), told Reuters it had seen an increase in enquiries to switch or open business accounts in the past few days. Virgin Money (VMUK.L), Britain's sixth largest bank, said in a statement it had also seen "net business deposit inflows in recent days".
SVB's failure has roiled global markets over the past week, with contagion concerns spreading to Swiss lender Credit Suisse, forcing the country's central bank to shore up its liquidity on Thursday in a move that brought some respite.
The British government and the Bank of England have said the country's banking system is safe, sound and well capitalised, while the UK arm of SVB was rescued by Europe's largest bank HSBC on Monday. That means SVB UK's customer deposits are safe and their loans supported, HSBC's top bosses have said.
But the collapse of the Californian bank has drawn additional scrutiny of the safety of uninsured deposits above an 85,000 pound guarantee granted to licenced banks in Britain, particularly for businesses, as they are more likely to have larger deposits.
Sam Franklin, CEO of recruitment platform Otta, which has around 70 full-time employees, said the crisis had impacted the way smaller startups thought about their finances.
Franklin told Reuters a number of CEOs and startup execs had started researching other banks with which to park cash in addition to SVB UK this week, citing Barclays as a favourite among some.
"We're all going on this learning journey together. We're all looking for banks with great backing, strong brands, and solid track records," he said.
The founder of banking platform Griffin, David Jarvis, said he is in a WhatsApp group of over 200 fintech founders, of which dozens have started the process for opening new bank accounts following the collapse of SVB. He said the people were "mostly looking at the big clearing banks".
Russ Shaw, founder of startup industry body Tech London Advocates, told Reuters he would advise startups to spread their capital between different bank accounts as a matter of course. "I suspect many learned this weekend about the risk of not doing this," he said.
Rapid interest rate rises by the Bank of England over the past 15 months had already spurred greater competition among lenders for depositors, with smaller players gaining the upper hand as they were quicker to raise rates on products.
But the collapse of SVB has intensified scrutiny of the business models of all lenders, including specialists with smaller balance sheets to fall back on.
John Cronin, banking analyst at Goodbody, said deposit migration would continue to be a key focus for analysts and investors.
"While the issues that SVB experienced were very much institution-specific, it has raised generalised concerns around the health of bank balance sheets," he said, adding that some specialists may actually be less exposed as they rely mainly on consumer deposits.
"Lots of companies will take the time to think more carefully about how they position themselves financially in the future," said Dom Hallas, executive director at Coadec, an organisation representing UK tech startups. "But I think it's too soon to tell who the winners and losers will be."
Sources at three specialist and online lenders said they had seen inflows of business deposits in the past few days, declining to be named citing the sensitivity of the situation.
Digital banking platform Revolut saw a 5% increase in new sign-ups from businesses, particularly larger companies, last week compared to previous weeks, and a "substantial increase" in overnight balances, a spokesperson said.
The company - which has applied for a banking licence in Britain but is not yet protected by the government's deposit guarantee - said it was not able to share figures for this week.
Revolut's customers in the EU are protected by the euro zone's 100,000 euro guarantee, the spokesperson said.
Several British banks focused on retail products such as consumer savings said they had seen no change in customer behaviour since the collapse of SVB, adding that the vast majority of customer balances sat well below the 85,000 pound government guarantee and were therefore protected.
"We have had no concerns from our customers," a spokesperson for Metro Bank said. "The UK banking system remains safe and continues to operate as normal."