Square 1 will be closed Monday, 2/18, in observance of Presidents' Day. Transactions initiated Monday will not be processed until Tuesday, 2/19. Normal processing hours will resume on Tuesday, 2/19.


Your Next Stage Starts Here.

Growing companies is what we do. From early stage to IPO and beyond.
With a range of financial services and expert guidance. If you’re ready to grow,
we’re ready to help.

Square 1 Bank is a division of Pacific Western Bank.

We Have Lived Every Stage of the Startup Story.

And have the knowledge to prove it. Our experience allows us to anticipate your financial needs, so you can move toward your next milestone with confidence.

Learn More

Square 1 offers a full range of commercial banking services for entrepreneurs and their investors, in every corner of the country.

We specialize in fueling growth from the seed round on by providing access to capital and helping you build your network of connections.

You can depend on us for the long haul. No matter how big your business grows, we will be able to provide the resources and assistance you need.

Your Field is Our Forte

Square 1 focuses on the following areas, offering highly personalized service and support.

Eric Gunderson


Eric Gunderson



We’re interested in what you want to do. If you’re interested in how we can help, contact us now.

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