Updated: May 12, 2026
Location and Projects
Address
18405 SE Mill Plain Blvd Suite 100, Vancouver, WA, 98683
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Mackay & Sposito Construction
Serving the Vancouver, WA area for over 25 years, Mackay & Sposito Inc provides civil engineering, land surveying, and construction management services for residential, commercial, and public infrastructure projects. The firm works with clients throughout Southwest Washington and Northwest Oregon, assisting with project planning, feasibility studies, and site development. Their service portfolio includes preliminary engineering, final design, stormwater management plans, and roadway and utility layout. Mackay & Sposito Inc serves municipalities, developers, and private property owners, offering support for subdivisions, parks, road improvements, and utility extensions. Their team brings experience coordinating with local agencies to obtain permits and approvals, and they manage projects from concept through construction. With a focus on comprehensive site development solutions, Mackay & Sposito Inc integrates engineering, surveying, and construction support across a wide range of property types.
Mackay & Sposito Inc Services
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Mackay & Sposito Inc Contact Information
Phone Number: (606) 953-4110
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Address: 18405 SE Mill Plain Blvd Suite 100, Vancouver, WA 98683
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Mackay & Sposito Inc Vancouver
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mackay & Sposito Inc has a BuildZoom score of 105, which places them above 92% of 128,670 contractors in Washington.
Activity
|
2 projects
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that Mackay & Sposito Inc has worked on at least
4.0 projects over the past 2 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$250k-$500k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Improvements for bf fairgrounds parking lot: spa-2024-0004 formalized parking lot benton county fairgrounds per approved construction drawings signed by john cowling on 12/18/2024
Valuation:
N/A
Permit #:
DPW-2025-0004
Status:
under construction
Fee:
$48,005
Permit Type:
N/A
Building Type:
N/A
Install sprinkler underground for self storage at tehaleh building i - bpco 884687
Valuation:
$0
Permit #:
886759
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Review minor industrial user pretreatment for tails pet resort
Valuation:
$0
Permit #:
888954
Status:
Accepted
Fee:
$484
Permit Type:
N/A
Building Type:
N/A
Tails pet resort private commercial sewer line application
Valuation:
$0
Permit #:
888878
Status:
Processed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new connection to mh installed by swle #888932
Valuation:
$0
Permit #:
888940
Status:
Accepted
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
Tails pet resort at tehaleh sewer line extenation
Valuation:
$0
Permit #:
888873
Status:
Processed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construction of southridge estates phase 6. this work includes the construction of water sewer stormwater and other right of way improvements within the subdivision as well as frontage improvement along s. sherman st per approved construction drawings signed by john cowling 3/24/2022.0
Valuation:
N/A
Permit #:
DPW-2022-6787
Status:
expired
Fee:
$42,648
Permit Type:
N/A
Building Type:
N/A
Inspection only for fire final inspection building i bpco - 884687
Valuation:
$0
Permit #:
886755
Status:
Processing
Fee:
$151
Permit Type:
N/A
Building Type:
N/A
Inspection only for fire final inspection building g bpco - 884686
Valuation:
$0
Permit #:
886754
Status:
Processing
Fee:
$151
Permit Type:
N/A
Building Type:
N/A
Tails pet resort pretreatment review application
Valuation:
$0
Permit #:
888879
Status:
Processed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Pinnacle ridge at tehaleh phase 2 road and storm - - - storm report for phase 2 approved by paul b (814081). phase 2 fees already paid (814081) - have paul b split out the phase 2 fees & transfer the money paid to this application.
Valuation:
$0
Permit #:
836623
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 736204 application to erect a free-standing kiosk. donna magnussen and rob jenkins are revie
Valuation:
$0
Permit #:
826455
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 736253 application to erect a free-standing sign. donna magnussen and rob jenkins are review
Valuation:
$0
Permit #:
826452
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 736246 application to erect a free-standing sign. donna magnussen and rob jenkins are review
Valuation:
$0
Permit #:
826450
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 736241 application to erect a free-standing sign. donna magnussen and rob jenkins are review
Valuation:
$0
Permit #:
826449
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 736237 application to erect a free-standing sign. donna magnussen and rob jenkins are review
Valuation:
$0
Permit #:
826448
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Free standing sign - re-open expired permit number 775563. donna magnussen and rob jenkins are revie
Valuation:
$0
Permit #:
826415
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Free standing sign - re-open expired permit number 775562. donna magnussen and rob jenkins are revie
Valuation:
$0
Permit #:
826413
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Free standing sign - re-open expired permit number 736240. donna magnussen and rob jenkins are revie
Valuation:
$0
Permit #:
826397
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Free standing sign - re-open expired permit number 736239. donna magnussen and rob jenkins are revie
Valuation:
$0
Permit #:
826395
Status:
Processing
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Mackay & Sposito Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mackay & Sposito Inc License info
License Not Verified
| License # | MACKASC816P2 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of October, 2025. Check the current license status of Mackay & Sposito Inc with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MACKASC816P2 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Mackay & Sposito Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | RCE-53686 |
| Status | Inactive |
| State | Idaho |
| Type | General Contractor Registration |
- According to the State of Idaho Bureau Of Occupational Licenses, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Mackay & Sposito Inc at the State of Idaho Bureau Of Occupational Licenses.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 187688 |
| Status | Unable To Verify |
| State | Oregon |
- BuildZoom was not able to verify this license with the licensing board
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Insured
| Insurer | Evanston Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Rli Ins Co |
| Bond Value | $12,000 |
84
Permits
- Building permit records show that Mackay & Sposito Inc has worked on 84 permitted projects.
Mackay & Sposito Inc Employees
DS
Derrick Smith
Partner/Member
KS
Kaitlin Shrier
Owner
MS
Mackay Sposito
RP
Robert Palena
Owner
SP
Smith, Derrick Paul
Owner