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Engineering & Surveying in Nassau County, NY

155 engineering firms listed · Updated Oct 27, 2026

Compare engineering and land surveying firms in Nassau County and request free quotes.

Avahere lists 155 engineering firms across 46 Nassau County towns. Of these, 20 show a public phone number, 101 link to a website and 20 list a street address. The most listings are in Valley Stream (13), Hicksville (10), Syosset (10). None of these businesses has claimed its page yet, so the details come from public business records.

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Towns with engineering & surveying

46 Nassau County towns, A–Z. Pick yours to see local listings.

Engineering & Surveying in Nassau County: common questions

How many engineering firms are in Nassau County, NY?
Avahere lists 155 engineering firms across 46 towns in Nassau County.
How do I get quotes from engineering firms on Avahere?
Describe your job once and local engineering firms that fit can reply with questions and quotes. It is free for you and for the businesses, and you decide who to hire, if anyone.
I run a engineering firm business. How do I update my listing?
Find your business and choose "Claim it free". After a quick check you can edit your details, add services and photos, and answer customers at no cost.
Is Avahere free?
Yes. Avahere is free for customers and for businesses. There are no lead fees, and businesses cannot pay to rank higher.

Listings come from public business records and from business owners. Avahere does not show owner names or private contact details. Spot a mistake or want a listing removed? Remove a listing or contact us.