Listed as a CPA in IRS public preparer records. Source: IRS PTIN FOIA extract (Feb 2026), retrieved October 23, 2026. https://www.irs.gov/pub/foia/foia-hawaii-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

David W Ristau

CPA · The Integer Company

Lahaina, Hawaii 96761

David W Ristau, CPA in Lahaina, HI

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David W Ristau, CPA in Lahaina · CPA Seek