J. L. Trevino and Associates

Houston's engineering services category lists 436 businesses, but that count alone doesn't tell you much. What matters is whether you can actually reach someone: 434 of these listings include a phone number and 417 link out to a website, so most entries give you a real way to make contact rather than just a name on a page. Zip code 77042 carries the heaviest concentration with 47 listings, followed by 77079 with 36, so if you're searching near either of those areas you'll have plenty of options to compare before you call.

None of the listings in this Houston category are marked Sponsored, since paid placement isn't turned on here, so the order you see is a straight, unranked pull from the directory rather than anyone paying for position. If your firm shows up with a wrong number or a broken website link, you can go through the claim process to fix those details yourself, which saves the next person searching by zip code from hitting a dead end. Call two or three firms directly to compare services and availability before deciding who to work with.