National Appraisal Partners, LLP

Houston has 1,569 real estate agents and brokerage offices listed. Contact details are close to complete, with 1,543 phone numbers and 1,423 websites on file, which is what you would expect in a business where being reachable is the job.

Where the offices sit says something about where the transactions are. ZIP 77027 holds 84 listings, more than any other in the category, followed by 77056 with 72 and 77057 with 55 across the Galleria and West University side of town. An office near the listing you care about is not the same as an office that knows it, so use the ZIP counts as a starting point and ask. Rows marked Sponsored are paid; the label is always shown. Agents and brokerages can claim a listing to keep the details right.