L&I-Verified · Washington
Licensed Landscaping Contractors in Seattle, WA
44 verified contractors · 23 licensed 10+ years · Average 10 years in business · Updated June 2026
Finding a reliable landscaping contractor in Seattle means looking beyond reviews. All 44 contractors here hold a current, ACTIVE Washington L&I contractor registration with a Landscaping specialty, averaging 10 years licensed — 23 have held their license 10+ years. 36 operate as an LLC or corporation, typically carrying stronger liability coverage than sole proprietors. Every license is verifiable on lni.wa.gov.
44 Licensed Landscapers in Seattle
Butterfly Effect Services LLC
Licensed 2026 · 0 years in business
Limited Liability Company · King County
License #BUTTEES743C3
Status: ACTIVE ✓
6618177960
License valid through Feb 2028
Blue Cactus Horticulture LLC
Licensed 2022 · 4 years in business
Limited Liability Company · King County
License #BLUECCH783LZ
Status: ACTIVE ✓
3366010054
License valid through Jun 2026 · expiring soon
Arvin Landscape & Design LLC
Licensed 2022 · 3 years in business
Limited Liability Company · King County
License #ARVINLD787NT
Status: ACTIVE ✓
5302200686
License valid through Sep 2026 · expiring soon
City Gardening LLC
Licensed 2024 · 1 years in business
Limited Liability Company · King County
License #CITYGGL769OW
Status: ACTIVE ✓
2066576059
License valid through Sep 2026 · expiring soon
