The Boldt Company
REGISTEREDCommercial & Institutional Bldg Construction · Appleton, WI
The Boldt Company is currently registered as a construction contractor with the State of Iowa under registration number C085412, last issued or renewed 2026-06-17 and current through 2027-07-27. Iowa registration confirms compliance with state labor law. It is not a license, and the State does not assess skill.
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This contractor is based in WI and holds an Iowa contractor registration, which is required to perform construction work in Iowa.
The Boldt Company at a glance
- What they do
- Construction · Delivery Methods · Integrated Lean Project Delivery® · Lean · Preconstruction · Prefabrication and Modular · Self-Perform · Special Projects Business website
- Registered in
- Appleton, WI State record
- Phone
- (920) 739-6321 State record
- Website
- boldt.com Business website
- Check the registration
- No. C085412, current, verify with the State State record
State registration
- Registration number
- C085412
- Status
- Registered
- Issued / last renewed
- 2026-06-17
- Expires
- 2027-07-27
- Primary trade
- Commercial & Institutional Bldg Construction
- Owner of record
- The Boldt Group INC
- Issuing authority
- DIAL
Sourced from the Active Iowa Construction Contractor Registrations (Iowa Code ch. 91C), last updated 2026-09-14. Verify this registration with the State of Iowa. How to check a registration yourself.
About The Boldt Company
From boldt.com
The 2020s marked a transformative chapter for Boldt, one defined by resilience, innovation and purpose-driven growth. The decade also brought profound change with the passing of Oscar C. Boldt, whose legacy continues to shape our values and vision. As the company reorganized to support long-term growth, Boldt expanded its capabilities with the launch of Bildt , a modular and prefabrication business, and the acquisition of Calnin & Goss , strengthening our self-perform expertise. These milestones culminated in a defining achievement: the successful transition to 100% employee ownership, ensuring Boldt’s future is built by those who power it forward every day.
- In business since 1889
Services listed on their website
- Construction
- Delivery Methods
- Integrated Lean Project Delivery®
- Lean
- Preconstruction
- Prefabrication and Modular
- Self-Perform
- Special Projects
- Sustainability
- Virtual Design and Construction
- Design
- Architectural
- Website:
- boldt.com
- Other number on their website:
- (920) 225-6225
- Facebook:
- facebook.com/theboldtcompany
- Instagram:
- instagram.com/theboldtco
- YouTube:
- youtube.com/user/theboldtcompany
Read from the business’s own website (boldt.com). We have not verified it and this business has not claimed this listing. Is this your business? Claim it free to edit or remove anything here, or request a correction.
What The Boldt Company is registered to do
The State classifies The Boldt Company as commercial & institutional bldg construction. That classification comes from the registration itself, not from us. It describes the work the business registered to perform, and it is not an assessment of skill or a limit on what they may quote for.
2026-06-17
registration last issued or renewed with the State
1,164
registered commercial & institutional bldg construction in Iowa, this business among them
All 1,164 registered commercial & institutional bldg construction in Iowa →
Sources for this profile
- Registration: Active Iowa Construction Contractor Registrations, last updated 2026-09-14. Verify registration C085412
- About the business: read from its website, boldt.com/about. Not written or confirmed by the business.