Mark Posthumus works as a plumber in Boulder. Practices under license number 180200, cross-checked against public registries. Prolio refreshes this listing weekly so the public information stays current and you're not reading a page Google forgot about years ago. You can contact Mark Posthumus directly from this page — we don't take a commission, we don't resell the lead, and we don't sit between you and the professional. If you're Mark Posthumus and want to edit this profile yourself, you can claim it for free at the bottom of the page.
Plumber · Boulder, CO
Mark Posthumus
Listed as an active plumber in Boulder — compiled from public records and refreshed weekly.
Licence no. 180200
Contact revealed on click · No commission · We never resell your data
MP
IndexedPRL-D302BC
Active listing
About this listing
This profile was assembled from public business records. It hasn't been claimed by the owner yet, so some details may be incomplete.
What we know
- Primary category
- Plumber
- Area served
- Boulder, CO
- Listing source
- Public business records
- Listing status
- Active · unclaimed
- Last refreshed
- Jul 25, 2026
Location
View on Google MapsBoulder, CO, 80301, Boulder, CO
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