Pick the job. The next page lists every Boulder County (unincorporated) firm with that kind of permit on record, May 2023 through April 2026. You choose what matters and the list moves.
Every trade card above opens a list of every contractor who pulled that kind of permit in unincorporated Boulder County, May 2023 through April 2026: 1,582 firm listings across 10 kinds of work and 7,668 permits in all. Each row shows how many permits the firm filed, how many the county closed out, its usual filed job value and, where the state keeps one, whether its license matches. Names link to the firm's own page with its permits.
The busiest trades on the Boulder County (unincorporated) record are heating & cooling (1,917 permits from 177 firms), roofing (1,524 permits from 364 firms), solar & battery (982 permits from 108 firms). The smallest file is siding, with 132 permits from 38 firms, so its lists are short and each firm's record is thin.
Before you call anyone, see what jobs usually cost here, from the values filed on the permits: heating & cooling cost, roofing cost, solar & battery cost, windows & doors cost, electrical cost, plumbing & water heater cost, remodel & repair cost, generator cost, addition cost, siding cost.
Nobody at our end ranks anyone. You move five sliders: does exactly this work (how many permits of this kind the firm filed), finishes the job (where the file records it, the share of its permits that passed a final inspection), fits my job & budget (how close its usual job is to yours), busy lately (permits in the last 12 months on file (May 2025–Apr 2026)) and works near me (permits near your ZIP code). Each firm gets a 0–100 fit score from those weights and the list re-sorts as you drag. A short record counts for less, and a license problem puts a firm at the bottom whatever its score. No one can pay to be listed or moved up.
Looking for one company? All Boulder County (unincorporated) firms A–Z. Want the totals? Boulder County (unincorporated) permit statistics.