First Business Bank

FDIC-insured bank with its head office in Madison, Wisconsin, established in 1909 according to the FDIC.

First Business Bank reported total assets of $4.4 bn at Q2 2026, up 10.1% on a year earlier, the 312th largest of 497 banks in our US coverage. The CET1 capital ratio at First Business Bank was 11.17%, and the uninsured share of First Business Bank was 33.17%. Source: FDIC Call Reports.

Key takeaways

  • On net interest margin, First Business Bank slipped from 147th to 201st among 500 US banks between and (1 = highest; FDIC Call Reports).
  • Since , First Business Bank has taken over 2 institutions; the latest was Alterra Bank on (FDIC Call Reports).
Total assets
$4.4 bn
+10.1% on a year earlier
Rank 312 of 497 1 = highest
CET1 capital ratio
11.17%
+0.05 pp on a year earlier
Rank 399 of 448 1 = highest
Return on equity
13.89%
+1.12 pp on a year earlier
Rank 168 of 500 1 = highest
Uninsured share of deposits
33.17%
+0.86 pp on a year earlier
Rank 270 of 500 1 = highest

What sets First Business Bank apart

How large is First Business Bank?

The balance sheet of First Business Bank at : assets $4.4 bn, deposits $3.6 bn, net loans $3.5 bn (loans equal to 98.68% of deposits). Securities make up 9.4% of total assets at First Business Bank. Since , when First Business Bank held $1.3 bn, its assets grew 251.3%. In the year to , deposits at First Business Bank rose 8.6% while its total assets rose 10.1%. At , First Business Bank employed 347 full-time equivalent staff across 5 offices, about $12.7 mn of assets per employee and $719.2 mn of deposits per office.

How much funding at First Business Bank is uninsured?

At First Business Bank, uninsured deposits (above the FDIC limit) made up 33.17% of domestic deposits at (+0.86 pp on a year earlier); First Business Bank ranks 270th of 500 on this measure. In dollars, First Business Bank estimated $1.2 bn of uninsured deposits.

Key facts, Q2 2026

MetricValueChange from a year earlierUS rank
Total deposits$3.6 bn+8.6%308th of 499
Net loans and leases$3.5 bn+9.9%281st of 500
Loan-to-deposit ratio98.68%+1.14 pp73rd of 500
Tier 1 leverage ratio10.37%+0.21 pp244th of 500
Total risk-based capital ratio12.18%-0.01 pp402nd of 448
Net interest margin3.80%+0.02 pp201st of 500
Return on assets (ROA)1.41%+0.15 pp189th of 500
Efficiency ratio58.08%-0.26 pp298th of 500 (1 = lowest)
Unrealized gain/loss on held-to-maturity securitiesLoss of $80,000Narrowed by $33,000
Unrealized gain/loss on available-for-sale securitiesLoss of $16.7 mnNarrowed by $375,000
Noncurrent loans to total loans1.06%+0.18 pp374th of 500 (1 = lowest)
Net charge-offs to average loans0.18%-0.09 pp333rd of 500 (1 = lowest)

US rank of First Business Bank: 1 = highest unless marked 1 = lowest.

Balance sheet

First Business Bank: assets, deposits and loans

USD bn
Total assets, deposits and net loans of First Business Bank each quarter; total assets were $4.4 bn at Q2 2026$822mn$1.8bn$2.7bn$3.7bn$4.6bn20182020202220242026First Business Bank-Milwaukee merged inAlterra Bank merged inTotal assets$4.4bnDeposits$3.6bnNet loans$3.5bnTotal assets, deposits and net loans of First Business Bank each quarter; total assets were $4.4 bn at Q2 2026$822mn$2.1bn$3.3bn$4.6bn20202024
  • Total assets $4.4bn
  • Deposits $3.6bn
  • Net loans $3.5bn
to . FDIC Call Reports.

Capital and securities

The CET1 ratio of First Business Bank stood at 11.17% in , +0.05 pp year on year. Low and high at First Business Bank since : 9.72% () to 11.17% (). Equity capital of First Business Bank at : $448.6 mn, or 10.2% of total assets. First Business Bank also reported a total capital ratio of 12.18% for , and a tier 1 leverage ratio of 10.37%.

On held-to-maturity securities, First Business Bank carried an unrealized loss of $80,000 at , equal to 0.0% of equity capital. The loss narrowed by $33,000 over the year. Its deepest point: $820,000 in . The available-for-sale portfolio of First Business Bank showed an unrealized loss of $16.7 mn at ; the loss narrowed by $375,000 over the year.

First Business Bank: capital ratios

Percent
CET1, total risk-based capital and tier 1 leverage ratios of First Business Bank, Q1 2016 to Q2 20268.5%9.4%10%11%12%20182020202220242026Total capital12%CET111%Tier 1 leverage10%CET1, total risk-based capital and tier 1 leverage ratios of First Business Bank, Q1 2016 to Q2 20268.5%9.8%11%12%20202024
  • Total capital 12%
  • CET1 11%
  • Tier 1 leverage 10%
to . FDIC Call Reports.

First Business Bank: unrealized securities gains and losses

USD bn
Unrealized gains and losses on available-for-sale and held-to-maturity securities of First Business Bank, Q1 2016 to Q2 2026-$36mn-$25mn-$14mn-$3mn$8mn20182020202220242026Held to maturity-$80,000Available for sale-$17mnUnrealized gains and losses on available-for-sale and held-to-maturity securities of First Business Bank, Q1 2016 to Q2 2026-$36mn-$22mn-$7mn$8mn20202024
  • Available for sale -$17mn
  • Held to maturity -$80,000
to . FDIC Call Reports.

Profitability and loan quality

For the year to , First Business Bank earned a return on equity of 13.89%; return on assets: 1.41%. Net interest margin at First Business Bank: 3.80%, +0.02 pp in a year. First Business Bank net income: $30.2 mn, up 21.5% year on year. The efficiency ratio of First Business Bank was 58.08%: about 58 cents cost per revenue dollar, against 61 cents at the median peer.

At , noncurrent loans were 1.06% of total loans at First Business Bank; net charge-offs: 0.18% of average loans. Gross loans and leases at First Business Bank: $3.6 bn, up 9.8% in a year.

First Business Bank: profitability

Percent, annualized
Return on equity, net interest margin and return on assets of First Business Bank, Q1 2016 to Q2 2026-1.1%4.0%9.1%14%19%20182020202220242026Return on equity14%Net interest margin3.8%Return on assets1.4%Return on equity, net interest margin and return on assets of First Business Bank, Q1 2016 to Q2 2026-1.1%5.7%12%19%20202024
  • Return on equity 14%
  • Net interest margin 3.8%
  • Return on assets 1.4%
to . FDIC Call Reports.

Peer group of First Business Bank

The peer group of First Business Bank is the 6 banks nearest to it by total assets at : 3 larger and 3 smaller. Of the peers, 3 share the charter type of First Business Bank (state nonmember bank), 6 sit in the same size group ($1 bn to $10 bn) and 0 have head offices in Wisconsin. Against them, First Business Bank shows CET1 ratio 11.17% against a peer median of 13.04%, return on equity 13.89% against a peer median of 12.62% and uninsured deposit share 33.17% against a peer median of 47.54%.

BankCharterStateTotal assetsCET1 ratioReturn on equityUninsured share
Capital City BankState member bankFL$4.4 bn18.18%12.85%47.83%
HomeTrust BankState member bankNC$4.4 bn13.74%11.44%26.47%
American Business BankState nonmember bankCA$4.4 bn12.35%15.17%75.74%
First Business BankState nonmember bankWI$4.4 bn11.17%13.89%33.17%
Sunwest BankState nonmember bankUT$4.4 bn10.40%17.39%53.14%
Texas Bank and Trust CompanyState nonmember bankTX$4.3 bn15.85%12.39%47.26%
Primis BankState member bankVA$4.3 bn10.63%9.10%22.93%

. FDIC Call Reports.

Last eight quarters

Two years at First Business Bank, to : assets +18.7%, deposits +20.8%, equity +24.0%. Staff 343 to 347.

MetricQ3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Total assets$3.7 bn$3.9 bn$3.9 bn$4.0 bn$4.0 bn$4.1 bn$4.3 bn$4.4 bn
Total deposits$3.0 bn$3.1 bn$3.2 bn$3.3 bn$3.3 bn$3.4 bn$3.6 bn$3.6 bn
Bank equity capital$361.8 mn$379.6 mn$388.9 mn$397.5 mn$411.0 mn$423.4 mn$430.8 mn$448.6 mn
CET1 ratio10.54%10.91%11.10%11.12%11.08%11.16%11.04%11.17%
Return on equity (ROE)12.82%13.49%12.93%12.77%13.66%13.51%12.72%13.89%
Uninsured share of domestic deposits36.09%31.49%32.51%32.31%33.01%36.08%34.64%33.17%
Full-time equivalent employees343339344359356356368347
Number of offices55555555

FDIC Call Reports.

Mergers and acquisitions

The FDIC history of First Business Bank, oldest first; figures before and after each event are not like for like.

  1. . Absorbed First Business Bank-Milwaukee (FDIC certificate 35445).
  2. . Absorbed Alterra Bank (FDIC certificate 1149).

Large one-quarter moves at First Business Bank

  • Total assets at First Business Bank changed by +34.0% in the quarter to 2017-06-30: Absorbtion - Without Assistance; Participated in Absorbtion/Consolidation/Merger: acquired from Alterra Bank, First Business Bank-Milwaukee.

Questions and identifiers

What were the total assets of First Business Bank?

First Business Bank reported $4.4 bn at in its Call Report. That makes First Business Bank the 312th largest of 497 banks in our US coverage.

Is First Business Bank the same as its holding company?

No. This page covers First Business Bank, FDIC certificate 15229; FIRST BUS FINL SERVICES INC (as reported to the FDIC), its holding company, reports separately to the Federal Reserve.

Is First Business Bank profitable?

First Business Bank reported net income of $30.2 mn for the year to ; annualized return on equity: 13.89%. So yes: First Business Bank made a profit over these months.

When is data for First Business Bank next updated?

Figures from First Business Bank for are due after .

Where can I check the figures for First Business Bank?

In the FDIC BankFind Suite record for certificate 15229, and in the Call Reports of First Business Bank (RSSD ID 537449) at the FFIEC Central Data Repository.