FirstBank Holding Co
| Formerly | First Westland National Bank |
|---|---|
| Company type | Private |
| Industry | Banking, financial services |
| Founded | 1963 in Lakewood, Colorado |
| Founders |
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| Headquarters | 12345 W. Colfax Avenue, Lakewood, Colorado , |
Area served | Predominantly in Colorado, and also in Arizona. |
Key people | |
| Products | Consumer banking, Commercial banking |
| Owner | PNC Capital |
| Website | efirstbank.com |
FirstBank Holding Company (or 1stBank) is an American privately held bank and financial services company that operates more than 100 locations in two states in the Southwestern U.S., in Colorado and Arizona. Founded in 1963, it is headquartered in Lakewood, Colorado.
At the time its sale to PNC was announced in September 2025, it was privately held and had $26.7 billion in assets. On January 5, 2026, PNC announced that it had completed the purchase of 1stBank.