Updated: Dec 15, 2025
Location and Projects
Address
Independence, MO, 00000
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Ma Mortenson Construction
With more than two decades of experience, Ma Mortenson Co brings a broad range of construction capabilities to projects throughout Oregon. The company’s portfolio includes complex commercial, industrial, and energy infrastructure builds. Their expertise extends to large-scale project delivery and integrated construction management. Ma Mortenson Co serves clients in sectors such as healthcare, higher education, renewable energy, and high-tech manufacturing, as indicated by their history of diverse project types. As a general contractor, they coordinate all phases of construction, from preconstruction planning through final project execution. Their approach includes collaborating closely with stakeholders and applying advanced construction methods tailored to site-specific and industry requirements. Ma Mortenson Co has established a long track record as a builder for both public and private sector clients in the region.
Ma Mortenson Co Services
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Ma Mortenson Co Contact Information
Phone Number: (763) 522-2100
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Ma Mortenson Co
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ma Mortenson Co has a BuildZoom score of 108, which places them above 95% of 62,733 contractors in Oregon.
Activity
|
7 projects
|
2025 |
|
6 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Ma Mortenson Co has worked on at least
17.0 projects over the past 3 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.
Experience
|
3 projects
|
Commercial Renovations |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Ma Mortenson Co mostly works on
new construction
and commercial renovation
projects.
Pricing
|
1 project
|
$20k-$50k |
|
1 project
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
|
1 project
|
$1mil+ |
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.
Portland art museum - rev 09 - 1.str detail rev to reflect plan check comments from bidder design stairs 208 & 302. no change to the main str calcs. 2. str calcs details and drawing updates for artwork anchorage for sculptures on the site and level 4 terrace. also includes revised load plans due to as-built conditions of the level 1 slab on metal deck
Valuation:
N/A
Permit #:
2019-258855-REV-09-CO
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Portland art museum - rev 08 - revision to occupant safety plan (osp) to addition new phase 3 which is proposing to allow public use of the ground floor/level01 cafe/retail new level 01 public restrooms non-public staff use of the newly renovated mark level 1.5 galleries and misc. minor updates to construction boundaries and emergency contacts. osp document has revisions to the narrat... see more
Valuation:
N/A
Permit #:
2019-258855-REV-08-CO
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Seaside bess - rev-01- revision to update plans and provide clarity on planting and seeding season windows for the contractor and identifies erosion control bmp measures surrounding the landscape plantings on the site
Valuation:
N/A
Permit #:
2024-037720-REV-01-ZP
Status:
complete
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Pacific seafood ti: the scope of this project is a 6, 361 square foot tenant improvement renovation at the administrative office area on the second floor of an existing building. the tenant improvement will include interior finishes fixtures reconfiguration of interior partitions and ceilings and mechanical plumbing electrical and fire protection modifications. mechanical plumbing ele... see more
Valuation:
$785,000
Permit #:
B0215122
Status:
final
Fee:
$8,260
Permit Type:
N/A
Building Type:
N/A
Single pdf process veterens memorial coliseum fountain room lvl 1 ti; minor demolish change of use from bathrm to workshop/laundry room remodel fountain room new walls to create bar area ceiling flooring finishes plumbing and electrical
Valuation:
N/A
Permit #:
2025-079162-000-00-FA
Status:
issued
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Various building maintenance upgrades and replacements of existing mechanical electrical and plumbing equipment at the clackamas dental office
Valuation:
$550,000
Permit #:
B1206724
Status:
final
Fee:
$4,792
Permit Type:
N/A
Building Type:
N/A
Ohsu maintenance - building 2 - renovation and upgrade to existing equipment storage/grounds maintenance office and surrounding area. w/25-035756-co and 25-036762-co
Valuation:
N/A
Permit #:
2025-035757-000-00-CO
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Electrical (commercial) - electrical commercial (insp workflow)
2024-07-12
Replacement of existing process piping equipment controls & house keeping pads. (no electrical review done as scope did not require review. thus electrical plans are not stamped.)
Valuation:
$8,912,652
Permit #:
ELEC-23-03666
Status:
complete
Fee:
$2,033
Permit Type:
N/A
Building Type:
N/A
Remodel of existing microchip office and administrative space to include new conference rooms offices renovated restrooms training space and outdoor break area (dr-b 22-596 for patio structure)
Valuation:
$5,834,074
Permit #:
BLDC-22-05747
Status:
complete
Fee:
$67,195
Permit Type:
N/A
Building Type:
N/A
Plumbing (commercial) - plumbing interior (insp workflow)
2023-06-01
(plans under 22-5747) restroom upgrades including full fixture replacements in 2 restroom blacks additional fixtures in 2 restroom blocks 6 new unisex restrooms and infrastructure to support
Valuation:
$5,834,074
Permit #:
PLMBC-22-06444
Status:
complete
Fee:
$9,117
Permit Type:
N/A
Building Type:
N/A
Pam - rev 06 - structural updates to addition threaded anchors in the level 03 rothko pavilion ceiling for audionisual (an) equipment support points (an is nic for this project). structural metal framing additions for supporting smoke baffles (fixed) fire curtains and fire shutters. interior stone stair tread dowel connections to stair stringers and misc. minor metal framing adjustmen... see more
Valuation:
N/A
Permit #:
2019-258855-REV-06-CO
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Seaside bess distribution/transmission - zp for 23-099707-lu compliance landscaping within environmental overlay zone per environmental review. permit for grading/excavation/backfill/erosion control separate submittal see 24-019017-dr
Valuation:
N/A
Permit #:
2024-045973-000-00-ZP
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replacement of existing process piping equipment controls & house keeping pads
Valuation:
$7,104,963
Permit #:
BLDC-23-03057
Status:
complete
Fee:
$65,276
Permit Type:
N/A
Building Type:
N/A
Mechanical (commercial) - mechanical commercial (insp workflow)
2024-06-04
(plans under 22-5747) addition of va vs to serve new zones heating hot water piping routed to new va vs new exhaust fan on roof. exhaust fan: 41 lbs. vavs: varies see plans
Valuation:
$249,300
Permit #:
MECHC-22-06414
Status:
complete
Fee:
$4,655
Permit Type:
N/A
Building Type:
N/A
Electrical (commercial) - electrical commercial (insp workflow)
2024-03-06
(plans under 22-5747) new power data lighting to renovated areas of existing office space. 3/17: added 12 circuits 6/21/23: added 4 circuits
Valuation:
$5,834,074
Permit #:
ELEC-22-06443
Status:
complete
Fee:
$974
Permit Type:
N/A
Building Type:
N/A
Ohsu maintenance - building 3 - renovation and upgrade of existing recycling area vehicle storage/garage and surrounding area. w 25-035756-co and 25-036757-co
Valuation:
N/A
Permit #:
2025-035762-000-00-CO
Status:
applied
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Seaside bess - battery energy storage system (bess) facility including its substation control enclosure building and foundation site work including perimeter fence perimeter wall stormwater sanitary sewer and fire water infrastructure. site grading and surfacing. work related to 23-107430-gw** **transmission line and distribution will occur on separate properties and under separate su... see more
Valuation:
N/A
Permit #:
2023-110438-000-00-CO
Status:
complete
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
The purpose of this project is to relocate and expand outpatient rehabilitation services for pediatrics and adults into an existing healthcare facility
Valuation:
$1,000,000
Permit #:
C2023-02838
Status:
complete
Fee:
$20,964
Permit Type:
C
Building Type:
N/A
Portland art museum - rothko - rev 03 - bds inspector's report cited existing interior metal framing bracing/anchoring deficiencies in the basement level 00 membership office area located in the ayer wing of the portland art museum. the submitted structural drawings and calculations describe the intended fixes to correct these existing framing deficiencies. a copy of the bds inspector... see more
Valuation:
N/A
Permit #:
2019-258855-REV-03-CO
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Plumbing (commercial) - plumbing site (insp workflow)
2023-06-14
(plans under 22-5747) (2) fixtures (stormwater quality and swale outlet) and approximately 40 lf of storm piping
Valuation:
$5,834,074
Permit #:
PLMBC-22-06473
Status:
complete
Fee:
$404
Permit Type:
N/A
Building Type:
N/A
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Ma Mortenson Co License info
Verified License
| License # | 190673 |
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Ma Mortenson Co at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 46955 |
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Ma Mortenson Co at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Ma Mortenson Co with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Ma Mortenson Co with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 46958 |
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of May, 2011. Check the current license status of Ma Mortenson Co with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 46957 |
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of May, 2011. Check the current license status of Ma Mortenson Co with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 46956 |
| Status | Active |
| State | Oregon |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of May, 2011. Check the current license status of Ma Mortenson Co with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | Arch Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | 32 Federal Ins Co |
| Bond Value | $20,000 |
Insured
| Workers Comp Provider | Arch Ins Co |
54
Permits
- Building permit records show that Ma Mortenson Co has worked on 54 permitted projects.
Ma Mortenson Co Employees
AT
Aura, Thomas
CP
Conzemius, Peter
Corporate Officer
FA
Facciani, Jennifer A
Corporate Officer
GF
Gunkel, Thomas F
Corporate Officer
JA
Jensen, Owen Andrew
Corporate Officer
JA
Johnson, Daniel A
JL
Johnson, Daniel Lester
LT
Lander, Thomas
Lander, Thomas
LA
Larson, Dwight Alan
MC
Ma Mortenson Co
Owner
MA
Mortenson Jr, Mauritz Arthur
Mortenson Jr, Mauritz Arthur
MC
Mortenson, David C
MC
Mortenson, David Charles
WW
Wacker, Thomas William