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First National 1870

Operating as Sunflower Bank, First National 1870 and Guardian Mortgage, Sunflower Bank, N.A. provides relationship-focused financial services to the communities it serves.

Banking
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Headquarters
Dallas, Texas, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
1001 to 5000Source: RevenueBaseRetrieved October 13, 2026
Founded
1870Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
10 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does First National 1870 do?

First National 1870 operates in Albuquerque, Los Alamos and Santa Fe, New Mexico, with roots dating back to 1870. Its financial services address personal, business and wealth management objectives.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

What the business offers

Services & capabilities.

Financial products

The company offers a full range of financial products to the communities it serves.

Source: LinkedIn company description · Retrieved October 13, 2026

Residential mortgage services

Guardian Mortgage is the company's residential mortgage division, serving customers across and beyond its footprint.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWFirst National 1870 listed #6 on Customer financial services, September 15, 2026Open the published source list.
First National 1870

#6 Customer financial services

Snapshot: September 15, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 15, 2026, September 16, 2026, September 19, 2026, September 28, 2026, October 7, 2026, October 8, 2026 and October 9, 2026. How the company lists are built.

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