SILLIMAN ECS LLC

Directory information score: 6/100
Profile updated October 2, 2026

Washington State Labor & Industries’ contractor license dataset lists SILLIMAN ECS LLC as a construction contractor with the general-contractor specialty. As observed on 2026-10-02, the dataset listed SILLIEL797LH (ACTIVE, expires 08/04/2027). Its listed mailing address is 34817 NE 23RD AVE, LA CENTER, WA 98629, and its listed business phone is 3607722258. L&I describes these as contractor-reported records; the mailing address and phone have not been independently confirmed.

Directory information score for SILLIMAN ECS LLC

Fixed points summarize recorded information, not service quality. Missing data adds no points and may explain a lower score. Listed credentials and press mentions are not independently verified by this score.

Public rating
N/A/5 → 0 / 35 points
Review Volume
0 reviews → 0 / 20 points
Listed credentials
None listed → 0 / 5 points
Listed press mentions
0 mentions → 0 / 3 points
Web Presence
0 / 20 points
Recorded history
N/A → 0 / 2 points
Profile information
6 / 15 points

Key facts

Based in
LA CENTER, WA
Address
34817 NE 23RD AVE
Phone
3607722258
Budget tier
Contact firm
Licensed in
WA

Frequently asked questions

What services does SILLIMAN ECS LLC offer?
SILLIMAN ECS LLC's specific services are not yet catalogued in our directory. Contact the firm directly for their current service offerings.
What is SILLIMAN ECS LLC's typical project cost?
Cost information for SILLIMAN ECS LLC is not published in our directory. Contact the firm directly at 3607722258 for a project-specific quote.
Where is SILLIMAN ECS LLC located and what areas do they serve?
SILLIMAN ECS LLC is based in LA CENTER, WA and lists licensing in WA. Confirm current standing with the relevant regulator.
How do I hire SILLIMAN ECS LLC?
To hire SILLIMAN ECS LLC: call 3607722258. Most contractors ask about scope, timeline, and budget range before scheduling an estimate.

Related contractors in LA CENTER

Source: Washington State Department of Labor & Industries contractor license dataset (m8qx-ubtq), captured 2026-10-02; source dataset metadata showed a last update on 2026-09-29.. Profile updated October 2, 2026.

Sources & evidence

Published statements, observation dates and unresolved questions for this specific profile.

Mailing address and phone reported to Washington L&I

Matched to a register

L&I lists the mailing address as 34817 NE 23RD AVE, LA CENTER, WA 98629, and the business phone as 3607722258 for the registration record(s) listed on this profile.

These are mailing address and business phone fields in the Washington L&I contractor dataset, not an independently verified work location or confirmed working phone. The source dataset metadata showed a last update on 2026-09-29 and was captured 2026-10-02.

The contact fields come from the same official L&I registration row identified by license number; L&I’s dataset describes the address as mailing address and phone as the business phone supplied in that record.

Reviewed 2026-10-02 · Review due 2026-10-16 · Version 1

Washington L&I general-contractor registration

Matched to a register

Washington L&I’s contractor dataset lists SILLIMAN ECS LLC with the GENERAL general-contractor specialty registration(s): SILLIEL797LH (ACTIVE, expires 08/04/2027).

The official dataset labels these contractor registrations ACTIVE as observed 2026-10-02 and reports the listed expiration dates. This is a dated registry snapshot, not a guarantee of status after that date, insurance, permits, work quality, or suitability.

The state’s public contractor dataset was downloaded on 2026-10-02; its metadata showed a last update of 2026-09-29. The source row was required to have ACTIVE status, general-contractor specialty, and an expiration date on or after 2026-10-02.

Reviewed 2026-10-02 · Review due 2026-10-16 · Version 1

Read sources, scope and review dates