Contact Us
Your Client Service Specialists can be reached directly at the National Service Center:
P: 866.355.0468 or 919.314.3040 (8:00 am to 8:00 pm Eastern)
F: 866.355.7099 or 919.314.3080
Square 1 Financial
406 Blackwell Street, Suite 240
Durham, North Carolina 27701
Outside of traditional business hours, please send an email to nsc@square1bank.com,
and someone will respond to you shortly.
Square 1 serves its customers from ten locations throughout the country. Each is strategically located in the premier growth corridors.
Scroll over a location to learn more about that region, or you may also use the dropdown menu.
Silicon Valley
2420 Sand Hill Road
Suite 100
Menlo Park, CA 94025
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P 650.543.2700
F 650.543.2780
Pacific Northwest
403 Columbia Street
Suite 410
Seattle, WA 98104
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P 206.812.4254
F 206.812.4253
Rocky Mountains
1899 Wynkoop Street
Suite 325
Denver, CO 80202
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P 303.938.3097
F 303.938.3099
Pacific Southwest
>> San Diego Office
12481 High Bluff Drive
Suite 350
San Diego, CA 92130
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P 858.436.3500
F 858.436.3501
>> Los Angeles Office
233 Wilshire Blvd.
Suite 320
Santa Monica, CA 90401
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P 310.883.7144
F 310.361.7686
Texas and Midwest
901 South Mopac Expressway
Barton Oaks Plaza Two
Suite 420
Austin, TX 78746
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P 512.439.2830
F 512.439.2829
Southeast
406 Blackwell Street
Suite 240
Durham, NC 27701
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P 919.314.3040
F 919.314.3110
Mid-Atlantic
2 Wisconsin Circle
Suite 920
Chevy Chase, MD 20815
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P 703.962.6623
F 703.448.1849
New York
500 Fifth Avenue
46th Floor
New York, NY 10110
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P 646.770.9380
F 646.336.4961
New England
