From a Tustin startup to a regional business bank
James Engbarth and a group of partners opened Santiago Commercial Bank in Tustin, California, in 1969. The bank’s own history describes its original purpose as financing the development of a growing Orange County community. It adopted the Sunwest Bank name in 1980. That beginning remains visible in today’s customer mix: small and midsize businesses, privately held companies, family offices and real-estate owners and developers. [1]
The turning point came after the financial crisis. Between June 2009 and January 2014, Sunwest acquired five failed banks through the FDIC: Metro Pacific Bank and Pacific Coast National Bank in California, First State Bank in Arizona, Westside Community Bank in Washington and Syringa Bank in Idaho. Its institutional history presents those acquisitions as the route from a local property lender to a regional bank. The history attributes its ability to buy to conservative underwriting; that is the bank’s explanation, rather than an independent verdict on every acquired portfolio. [1]
A Utah headquarters with a wider customer footprint
The FDIC’s October 2, 2026 institution index identifies Sunwest Bank under certificate 20164, headquartered at 10011 South Centennial Parkway in Sandy, Utah. The bank’s acquisition announcement describes offices in California, Arizona, Idaho, Colorado, Utah and Florida. Its Utah headquarters therefore identifies the chartered institution’s home, not the location of every customer or loan. Sunwest is a state-chartered bank; the Utah DFI directory lists it among state banks, separately from industrial banks. [2][3][4]
Sunwest’s leadership biography identifies Carson Lappetito as president and chief executive of the bank and president and director of its parent, H Bancorp. The insured bank and holding company are different legal entities. The bank biography also retains an undated $2.7 billion asset description; the dated FDIC figures below are used for the financial snapshot instead of treating that older website number as current. [5][6]
The business account is part of the lending relationship
Sunwest sells commercial and small-business checking alongside online banking, bill payment, debit cards and cash-management services. Its product schedule distinguishes basic checking, analyzed checking and a bundled account. In analyzed checking, an earnings credit based on eligible balances offsets account charges. That mechanism connects a customer’s operating deposits to the cost of payment services, rather than making the relationship only about a loan or a posted savings rate. [7]
The same published schedule contains monthly and activity fees, with specific balance conditions for waivers or reductions. The bank’s general promotional language about avoiding maintenance fees does not mean every business account is unconditionally free. For a business receiving customer payments and paying suppliers or employees, reliable transaction processing is part of the account’s practical value. The disclosed service menu establishes what the bank offers; it does not measure satisfaction, retention or operating reliability. [7]
The June balance sheet preceded the Nano transaction
At June 30, 2026, Sunwest Bank reported $4.409 billion in assets, $3.395 billion in deposits, $3.458 billion in net loans and leases and $412.007 million in equity capital. Net income for the first six months was $34.508 million. These are bank-level FDIC observations, not consolidated H Bancorp results and not a post-acquisition balance sheet. Deposits represented about 77% of assets, calculated from the reported balances. [6]
Real-estate loans were $2.219 billion, compared with $727.877 million of commercial and industrial loans and $198.193 million of consumer loans. Those categories illustrate the importance of property and business lending, but do not describe the entire loan book or prove that every property exposure is commercial real estate. The bank reported $21.290 million in at quarter-end and $75,000 of net recoveries for the first half. A stock of troubled loans and a period’s recognized losses or recoveries measure different things. Neither is a forecast of the performance of acquired Nano loans. [6]
September brought a sixth failed-bank acquisition
On September 25, 2026, California’s Department of Financial Protection and Innovation closed Nano Banc in Irvine and appointed the FDIC receiver. The FDIC agreed to transfer substantially all deposits and certain assets to Sunwest. Its announcement said Nano’s single branch would reopen under Sunwest on September 28, with depositors automatically becoming Sunwest customers and retaining immediate access through checks, ATMs and debit cards. These were the resolution arrangements announced at closing, not a later audit of every customer’s transition. [8]
The figures need their dates and definitions. Nano had reported $736 million in assets and $686 million in deposits at June 30. The FDIC said Sunwest would purchase approximately $476 million of assets and assume substantially all closing-date deposits. Sunwest separately described approximately $605 million in assumed deposits and $227 million in assumed loans. The deposit figures are from different points in time, and loans are only part of purchased assets; they cannot be treated as contradictory measurements of the same balance. [3][8]
The FDIC retained the remaining assets and preliminarily estimated a $114 million cost to the Deposit Insurance Fund. That estimate was the receiver’s projected resolution cost, not a loss charged directly to Sunwest’s reported first-half earnings. Sunwest called the deal its sixth FDIC-assisted acquisition and described itself as having more than $5 billion in assets. That company description is later than the June bank return and is not substituted for a filed post-closing balance sheet. [3][8]
The next chapter is integration as well as growth
The transaction added relationships in Sunwest’s original California market to a bank now headquartered in Utah. Its customer notice says treasury services, including electronic payments, wires, remote deposits and fraud controls, are being reviewed for continuity and that affected clients will be contacted about changes. The notice provides evidence of the integration work, not proof that all systems have already been combined. [3]
Sunwest’s history explains why an FDIC-assisted transaction fits its model: it has repeatedly expanded by taking selected assets and deposit relationships from failed institutions. The eventual economics depend on retained customers, acquired-loan performance, funding costs and integration expenses. The public sources reviewed here establish the transaction and the pre-deal financial position; they do not establish a final purchase-accounting gain, full integration cost or post-closing profitability. [1][3][6][8]
Sources
- Sunwest institutional history, undated; reviewed October 6, 2026SourceBack to text: ↑1↑2↑3
- FDIC active Utah-headquartered institution index dated October 2, 2026; retrieved October 6Official sourceBack to text: ↑
- Sunwest Nano Banc acquisition announcement and customer questions, September 2026; reviewed October 6SourceBack to text: ↑1↑2↑3↑4↑5↑6
- Utah DFI institution directory workbook; older charter reference, retrieved October 6, 2026Official sourceBack to text: ↑
- Sunwest biography of Carson Lappetito, undated; reviewed October 6, 2026SourceBack to text: ↑
- FDIC bank financials, June 30, 2026; dollar fields in thousands, income and net charge-offs year to date; retrieved October 6Official sourceBack to text: ↑1↑2↑3↑4
- Sunwest business checking product schedule, reviewed October 6, 2026; offers can changeSourceBack to text: ↑1↑2
- FDIC Nano Banc resolution announcement, September 25, 2026Official releaseBack to text: ↑1↑2↑3↑4