Updated: May 26, 2026
Location and Projects
Address
1135 CR 120, Ottumwa, IA, 52501
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Winbco Tank Company Construction
Winbco Tank Company, 1135 Cr, Ottumwa, IA (Owned by: Stanley Goodman) holds a C 28 A Fabricating Tanks license and 11 other licenses according to the Nevada license board.
Their BuildZoom score of 93 ranks in the top 27% of 39,764 Iowa licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Winbco Tank Company, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Winbco Tank Company Services
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Winbco Tank Company Contact Information
Phone Number: (662) 316-2608
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Address: 1135 CR 120, Ottumwa, IA 52501
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This is a sample of this contractor's permits. Click here to access their complete permit history.
No Description Available
Valuation:
N/A
Permit #:
COMB-4-08-1685
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
11123
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
HVAC-5-14-9227
Status:
issued
Fee:
N/A
Permit Type:
Air conditioning
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
HVAC-1-09-2302
Status:
issued
Fee:
N/A
Permit Type:
Furnace
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
ELEC-2-08-1559
Status:
issued
Fee:
N/A
Permit Type:
Service and wiring
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
ELEC-8-19-14686
Status:
issued
Fee:
N/A
Permit Type:
Service
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
9731
Status:
issued
Fee:
N/A
Permit Type:
Service and wiring
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
9172
Status:
issued
Fee:
N/A
Permit Type:
Service
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
7442
Status:
issued
Fee:
N/A
Permit Type:
Air conditioning
Building Type:
N/A
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Winbco Tank Company Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Winbco Tank Company License info
Verified License
| License # | 0084951 |
| Status | Active |
| State | Nevada |
| Type | C 28 A Fabricating Tanks |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Winbco Tank Company at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CGC1504572 |
| Status | Active |
| State | Florida |
| Type | Certified General Contractor |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Winbco Tank Company at the Florida Department of Business & Professional Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 49849 |
| Status | Active |
| State | Alabama |
| Type | General Contractors |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Winbco Tank Company at the Alabama Licensing Board for General Contractors.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 34833-26 |
| Status | Active |
| State | Nebraska |
| Type | Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Winbco Tank Company at the Nebraska Department of Labor.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | C091536 |
| Status | Active |
| State | Iowa |
| Type | Contractor |
| Date Issued | 06-13-2025 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Winbco Tank Company at the Iowa Workforce Development Agency.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 38143 |
| Status | Active |
| State | Tennessee |
| Type | Contractors |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Winbco Tank Company with the Tennessee Department of Commerce and Insurance
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | GCCO004422 |
| Status | Active |
| State | Georgia |
| Type | Residential/General Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2022. Check the current license status of Winbco Tank Company with the Georgia Department of Professional Licensing
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 89140 |
| Status | Inactive |
| State | New Mexico |
| Type | Tanks And Towers |
- According to the New Mexico Contractor Licensing Division, 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 Winbco Tank Company at the New Mexico Contractor Licensing Division.
This is a sample of licensing data; click here to access a complete history.
Unverified License
| License # | 20691 |
| Status | Unable To Verify |
| State | Mississippi |
| Type | Residential Electrical, Residential Plumbing |
- 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.
Unverified License
| License # | 20691-SC |
| Status | Unable To Verify |
| State | Mississippi |
| Type | Process Piping, Steel Tanks & Vessels |
- 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.
Inactive License
| License # | 39213 |
| Status | Inactive |
| State | North Carolina |
| Type | Building |
- According to the North Carolina Licensing Board for General Contractors, 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 Winbco Tank Company at the North Carolina Licensing Board for General Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1504572 |
| Status | Inactive |
| State | Florida |
| Type | Certified General Contractor |
- According to the Florida Department of Business & Professional Regulation, 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 Winbco Tank Company at the Florida Department of Business & Professional Regulation.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | Travelers Casualty & Surety Co Of America |
| Bond Value | $50,000 |
Winbco Tank Company Employees
DH
David Lester Lester Hull
DP
Donald Delbert Prox
Officer
DP
Donald Prox
JT
John Travlos
Treasurer
KK
Kermit Gregory Knott
CEO / PRESIDENT
KK
Kermit Knott
KG
Knott, Kermit Gregory
President Secretary
MM
Mark Milder
Owner
RJ
Ragen William Jack
Owner
RJ
Ragen, William Jack
RB
Richie Bryant
SG
Stanley Goodman
Owner
TA
Travlos, John Angelos
Treasurer
WR
William J Ragen
Supervisor
WR
William Jack Ragen
Rme
WR
William Ragen