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Landscaping companies in Seattle, Tacoma and Olympia

72 landscaping companies in King, Pierce, Thurston and Snohomish counties whose own websites list design, planting, hardscaping or landscape maintenance. Call them directly.

We checked each company’s own website on October 17, 2026 and kept the ones that describe landscaping work, not only mowing. The tags under each name are the services we found named on that site. They are not a rating.

What these sites say they do

King County landscapers (43)

Pierce County landscapers (14)

Thurston County landscapers (13)

Snohomish County landscapers (2)

Lawn care or construction?

Washington L&I says lawn care and pruning do not need a contractor registration, but work that “adds to or subtracts from real estate” does (L&I hiring guide F625-084-000). If the job is a patio, a wall, new beds or a full yard redo, look the company up on L&I Verify before you sign. Our list of patio, paver and retaining wall builders narrows this page to that kind of work.

Ask before you get three quotes

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