The details on Matrix Developments LLC
- WA L&I registration
- MATRIDL745BN
- Registration checked
- September 14, 2026
- Registered since
- 2026
- Expires
- January 2028
- Contractor bond
- $30,000 · American Contractors Indem CO
- Liability insurance
- $1,000,000 · NATIONWIDE GENERAL INSURANCE C
- Insurance through
- March 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Registered principal
- SIEKERMAN, ALEXANDER L · since 2026
- Registered principal
- SUMNER, JOSHUA · since 2026
- Service area
- Spokane
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Matrix Developments LLC
Is Matrix Developments LLC a registered contractor?
Yes — Matrix Developments LLC holds Washington State (L&I) contractor registration MATRIDL745BN, expiring January 2028. We checked it against the state record on September 14, 2026; the same lookup takes you about a minute if you want to see it yourself. L&I also lists a $30,000 contractor bond (American Contractors Indem CO) and $1,000,000 of liability insurance with NATIONWIDE GENERAL INSURANCE C through March 2027. Ask them to send the bond and insurance certificates over before the first day on site.
Does Matrix Developments LLC cover my part of Spokane?
Spokane is what they cover. A crew close to you is the one that comes back for a warranty call, so it is worth asking how far out they really travel.
Why is Matrix Developments LLC listed here?
Every general contractor business licensed in the Spokane area gets a page here, and Matrix Developments LLC is one of them. That registration is checked against Washington's record, and the date of the check is on this page for you to weigh.