About Square 1 Bank
Square 1 Bank is a company based in Durham (United States) founded in 2005, and was acquired by Pacific Western Bank in March 2015. Venture debt, treasury, and cash management services are provided. Square 1 Bank has raised $70.96 million across 4 funding rounds from investors including Patriot Financial Partners and Pacific Western Bank.
Company details
Square 1 Bank was founded in 2005 and is headquartered in Durham, United States. Operations are centered in the financial services sector, with a focus on supporting venture-backed companies. Venture debt financing is offered alongside treasury management and cash handling solutions. The banks domain, square1bank.com, facilitates digital access to these services across the region. Core activities emphasize tailored banking for startups and growth-stage firms in the technology and innovation spaces.
- Headquarters Durham, United States
- Stage Acquired
- Email••••••••
- Phone•••• ••••
- Website square1bank.com
- Social LinkedIn Facebook
- Acquired by Pacific Western Bank (Mar 2015)
- Total Equity Funding$70.96M (USD)
in 4 rounds
- Latest Funding Round$1.84M (USD), Series A
Nov 2012
- InvestorsPatriot Financial Partners
& 1 more
- Acquired byPacific Western Bank
(Mar 2015)
Funding Insights of Square 1 Bank
Square 1 Bank has successfully raised a total of $70.96M across 4 strategic funding rounds. The most recent funding activity was a Series A round of $1.84 million completed in November 2012. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $70.96M
- Total Rounds 4
- Last Round Series A — $1.84M
- Investors Count 1
All 4 funding rounds of Square 1 Bank with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Nov 2012 | $1.84M | Series A | – | – | – |
| Oct 2012 | $20.62M | Series A | – | – | – |
| Jun 2010 | $48.5M | Series A | – | – | – |
| Jan 2010 | Seed | – | – |
2 investors in total: 2 institutional.
Investors in Square 1 Bank
Square 1 Bank has secured backing from 2 investors, including venture fund and institutional investors. Prominent investors backing the company include Patriot Financial Partners and Pacific Western Bank.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Private equity investments are targeted at US companies. | patriotfp.com | Radnor, United States | ||
| pacificwesternbank.com |
Investor details for Square 1 Bank
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
Timeline of Square 1 Bank
4 dated milestones of Square 1 Bank across 10 years, from founding to its latest funding, stage changes and deals.
- Founded Square 1 Bank is founded.
- Funding First funding round.
- Funding Latest funding round, Series A, of $1.8M.
- Exit Acquired by Pacific Western Bank.
Web traffic of Square 1 Bank
Websites that share an audience with Square 1 Bank (square1bank.com).
Websites whose visitors overlap most with Square 1 Bank. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| svb.com | 100% | 446.4K | #73,009 | View details | |
| townsquarebank.com | 74% | View details | |||
investing.businessweek.com | investing.businessweek.com | 46% | – | ||
| suntrust.com | 32% | 16.5K | #1,535,233 | View details | |
| cooley.com | 29% | 215.6K | #169,069 | View details | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 7 similar websites and full traffic analytics for Square 1 Bank
The complete similar-websites list, audience overlap and engagement analytics require an active premium plan.
- 7 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
Verified entity values are shown only after access is granted.
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Related news about Square 1 Bank
Complete news archive for Square 1 Bank
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Frequently Asked Questions about Square 1 Bank
Square 1 Bank was founded in 2005 and raised its 1st funding round 5 years after it was founded.
Square 1 Bank is headquartered in Durham, United States. It is registered at Durham, North Carolina, United States.
Square 1 Bank is a funded company, having raised a total of $70.96M across 4 funding rounds to date.
Square 1 Bank was founded in 2005 and is headquartered in Durham, United States. Operations are centered in the financial services sector, with a focus on supporting venture-backed companies. Venture debt financing is offered alongside treasury management and cash handling solutions. The banks domain, square1bank.com, facilitates digital access to these services across the region. Core activities emphasize tailored banking for startups and growth-stage firms in the technology and innovation spaces.
Square 1 Bank has 2 investors. Key investors include Patriot Financial Partners, and Pacific Western Bank.
Yes. Square 1 Bank was acquired by Pacific Western Bank in March 2015.