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Their BuildZoom score of 103 ranks in the top 10% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Knudsen Construction, Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Spr 2019 cbrc: interior alterations to existing 17th floor office space. work to include demolish new partitions mechanical electrical and plumbing as per plans. no structural work. no change in use. (occupancy type: b-business office; construction type: 1a)
Spr 2019 cbrc: interior alterations to existing 21st floor office space. work to include demolish new partitions mechanical electrical and plumbing as per plans. no structural work. no change in use. (occupancy type: b-business office; construction type: 1a)
Spr 2019 cbrc: interior alterations to existing 20th floor office space. work to include demolish new partitions mechanical electrical and plumbing as per plans. no structural work. no change in use. (occupancy type: b-business office; construction type: 1a) per plans
Self cert 2019 cbrc b(e)-business building (unchanged) interior alterations to ground floor (partial floor) tenant space to include demolish new partitions mechanical electrical and plumbing as per plans. non-sprinklered building. iiib construction type) ("no zoning; outside/exterior work or change in use associated with this project)
Spr 2019 cbrc: interior alterations to existing 16th floor office space. work to include demolish new partitions mechanical electrical and plumbing as per plans. no structural work. no change in use. (occupancy type: b-business office; construction type: 1a)
Scope- area of work 600 sq ft in suite 2050: nonstructural interior alteration to existing office suite for new meeting rooms new coat closets and the replacement of phone room doors from bi-fold to swing doors mechanical and electrical work. locations: 0 residential unit(s) 1 non-residential unit(s) suite 2050
Spr 2019 cbrc: interior alterations to an existing 18th floor office space as per plans. work to include selective demolition new partitions mechanical electrical and plumbing work. no structural work. no change in use. (occupancy type: b-business office; construction type: 1a)
Level 2 renovation of existing tenant suite. no change in use or occupancy. work includes new demising wall for new suite new multipurpose room; rework existing ductwork rework existing branch circuits and replace lighting as required for new multipurpose room; no new plumbing
Removal and replaceme opening in slab on grade at an empty retail storefront. exploratory opening to establish depth of foundation for potential slab lowering. slab is on grade; no structural implications.selective plaster ceiling cut to expose beam/column connections. no other work. locations: 0 residential unit(s) 1 non-residential unit(s) business unit at 3727 n southport
Self-cert 2019 cbrc: interior alterations to an existing office suite 550 on the 5th floor in an existing commercial building as per plans. work to include selective demolition new partitions lighting finishes mechanical and electrical. no structural work. (construction type: 1a; occupancy: b-business)
Self-cert 2019 cbrc: demolish and remove 17 existing 5 x 5 windows at the south-west corner of one-story bustle. modify existing openings and install (17) new 5 x 7'-8 windows. addition (8) new window openings (2 windows per bay) at the north-west corner of the one-story bustle. new structural bracing of existing exterior wall at all window openings. (construction class 1-b occupancy ... see more
Self cert 2019 cbrc: interior alterations to existing 12th floor office space. work to include demolish new partitions mechanical and electrical as per plans. 1a construction. b-business
Partial renovation of the 11th floor of the searle building per plans. work consists of some new walls doors finishes as well as rework of mechanical electrical plumbing and fire protection to coincide with new layout. occupancy and function of space to match existing
Self-cert 2019 cbrc: interior demolition of non-load bearing partitions on an existing 4th floor office floor as per plans. no change in use. (b-business - construction type 1a)
Interior alterations at first floor of high-rise building for tenant amenities center 7 153 sf type 1a construction fully sprinkled building self cert permit with structural peer review
Renovation of six existing multi-user toilet rooms. plumbing fixtures to be replaced one-to-one in existing locations with no modifications to room occupancies
Interior buildout of 560 sf office space on 17th floor of high-rise builidng type 1-a construction fully sprinkled business use no change in use. self-certification permit process
Self-cert: interior alterations to existing retail space for new bank tenant to include emergency exit door on west side of the building for additional egress
BuildZoom verified this license was active as of May 2026.
Verify this license's status for Knudsen Construction, Inc at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
License #
NAT-59610-4
Status
Active
Nation
Environmental Protection Agency
Type
Renovation
BuildZoom verified this license was active as of February 2026.
Verify this license's status for Knudsen Construction, Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
License #
9301
Status
Active
Hoffman Estates
Type
General Contractor
BuildZoom verified this license was active as of December 2025.
Verify this license's status for Knudsen Construction, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
13-00007948
Status
Active
City
Aurora
Type
General Contractor
When BuildZoom last verified this license, it had an expiration date of August, 2015. Check the current license status of Knudsen Construction, Inc with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
L-2011-152
Status
Active
County
Kankakee County
Type
Carpentry, General Contracto
When BuildZoom last verified this license, it had an expiration date of August, 2015. Check the current license status of Knudsen Construction, Inc with the Kankakee County Planning Department
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Inactive License
License #
CR-10879
Status
Inactive
Type
Contractor Registration
According to the local license board, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
14095
Status
Inactive
Hoffman Estates
Type
General Contractor
According to the Village of Hoffman Estates, 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 Knudsen Construction, Inc at the Village of Hoffman Estates.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
CL003894
Status
Inactive
City
Oak Park
Type
Contractor
According to the Village of Oak Park, 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 Knudsen Construction, Inc at the Village of Oak Park.
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Inactive License
Status
Inactive
County
Cook County
Type
Demolition
According to the Cook County Department of Building and Zoning, 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.
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Inactive License
Status
Inactive
County
Cook County
Type
Drywall
According to the Cook County Department of Building and Zoning, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
Status
Inactive
County
Cook County
Type
Carpentry
According to the Cook County Department of Building and Zoning, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
NAT-59610-3
Status
Inactive
Nation
Environmental Protection Agency
Type
Renovation
According to the United States Environmental Protection Agency, 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 Knudsen Construction, Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
Status
Inactive
City
City Of Chicago
Type
A All Projects No Restrictions
According to the City of Chicago Data Portal, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
09LICC-0275
Status
Inactive
City
Evanston
Type
Gc Commercial
According to the City of Evanston Building and Inspection Services, 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 Knudsen Construction, Inc at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.