Updated: Jul 14, 2026
Location and Projects
Address
35 E WACKER DRIVE, Chicago, IL, 60601
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Clayco Construction
Serving Chicago and the greater North American region, Clayco Inc. has been a prominent design-build firm since its founding in 1984. The company integrates development, architecture, engineering, and construction, streamlining each phase to enhance building outcomes and project efficiency. With a workforce exceeding 4,000 employees and more than $8.1 billion in projected revenue for 2025, Clayco undertakes large-scale commercial, institutional, industrial, and residential projects. The team is known for a fully integrated approach that prioritizes collaborative design, efficient project management, cost control, and jobsite safety. Clayco’s portfolio encompasses complex and transformational structures for healthcare, technology, science, research, industry, and entertainment clients. Recognized annually by Engineering News Record as a top contractor and design-builder, Clayco emphasizes innovative building methods and solutions tailored for clients with sophisticated requirements.
Clayco Inc Services
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Clayco Inc Contact Information
Phone Number: (314) 595-6325
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Address: 35 E WACKER DRIVE, Chicago, IL 60601
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Clayco Inc Chicago
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Clayco Inc has a BuildZoom score of 108, which places them above 95% of 65,686 contractors in Illinois.
Activity
|
5 projects
|
2025 |
|
3 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Clayco Inc has worked on at least
9.0 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
|
4 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Clayco Inc mostly works on
new construction
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
5 projects
|
$1mil+ |
The typical size of their permits is approximately $7,750,326. This graph shows the distribution of these job values.
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.
Spr 2019 cbc: core and shell permit for the new construction of a 44 tall one story approximately 84 979 sf quantum computing facility with associated support spaces including office exterior equipment and 43 proposed vehicle parking spaces. (occ groups f-1 b s-1; const type ii-b)
Valuation:
$100,000,000
Permit #:
101063081
Status:
issued
Fee:
$66,109
Permit Type:
N/A
Building Type:
N/A
Dds 2019 cbc full building permit for a 29 story mixed-use residential tower. the overall gross enclosed area is approximately 336 612 sf including ground floor retail loading and residential lobby two levels of above grade parking 115 parking spaces and 2 off-street loading spaces. two amenity floors at level 4 and level 29 and 24 levels of residences including a total of 308 dwellin... see more
Valuation:
$99,500,000
Permit #:
101041255
Status:
issued
Fee:
$317,171
Permit Type:
N/A
Building Type:
N/A
Direct developer services. foundation and superstructure through level 4 for a 29-story mixed-use residential tower as per plans. the overall gross area for the scope of work is 107 250 sf.caissons only permit #100984207. consultant reviewer: v3 companies of il
Valuation:
$8,400,000
Permit #:
101039773
Status:
phased permitting
Fee:
$63,621
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbc: phase 1b interior buildout of new 44 tall one story approximately 84 979 sf quantum computing facility with associated support spaces including office exterior equipment and 43 proposed vehicle parking spaces. includes revisions to phase 1a core and shell permit# 101063081 (occ groups f-1 b s-1; const type ii-b)
Valuation:
$10,000
Permit #:
101065270
Status:
issued
Fee:
$66,109
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc - building permit to construct a new 1 story 37 930 sf meal prep addition to the existing greater chicago food depository warehouse and office building. site work will include two new parking lots accessed from vacated keeler ave. (addition occupancy f-1 existing occupancy b & s-2 construction type ii-b) h\ (mwbe report due)**certified corrections subject to field inspec... see more
Valuation:
$27,000,000
Permit #:
100970953
Status:
complete
Fee:
$25,474
Permit Type:
N/A
Building Type:
N/A
Rivian nn2 battery modification
Valuation:
$7,750,326
Permit #:
BLDC2025-2871
Status:
issued
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
Rivian drive unit modifications
Valuation:
$7,524,404
Permit #:
BLDC2025-2635
Status:
issued
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
Rivian nn2 conveyance and asrs
Valuation:
$40,917,542
Permit #:
BLDC2025-2357
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Rivian nn2 ga building phase 2
Valuation:
$128,117,448
Permit #:
BLDC2025-2143
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Rivian pted phase 2
Valuation:
$13,333,061
Permit #:
BLDC2024-5359
Status:
issued
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
Direct developer services. caissons only. vertical penetration only. for a 29 story mixed-use residential tower. includes deep foundation caisson only permit for straight shaft and belled caissons founded on hardpan at an elevation of approximately -74 ccd as per plans. consultant reviewer: v3 companies of il
Valuation:
$100,000
Permit #:
100984207
Status:
phased permitting
Fee:
$47,310
Permit Type:
N/A
Building Type:
N/A
Fire alarm: modification of existing system. associated building permit:101072667. affects: 0 dwelling units; 1 non-residential units. high-rise building: yes. voice communication: no. special locking: yes. monitoring type: none (exempt). specific location: 21st floor - office space
Valuation:
N/A
Permit #:
B200444049
Status:
issued
Fee:
$175
Permit Type:
Fire alarm system
Building Type:
N/A
Rivian stamping addition and remodel
Valuation:
$1,195,000
Permit #:
BLDC2025-2417
Status:
issued
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
Rivian grit phase 2 core and shell
Valuation:
$89,976,132
Permit #:
BLDC2025-2260
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Rivian nn2 ga building phase 1
Valuation:
$48,862,117
Permit #:
BLDC2024-4662
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Rivian expansion 12
Valuation:
$14,862,771
Permit #:
BLDC2024-5015
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Rivian pted phase 1
Valuation:
$7,017,847
Permit #:
BLDC2024-4831
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Low voltage/communication electrical work. install data/video. specific location: 21st floor
Valuation:
$70,000
Permit #:
B200447014
Status:
issued
Fee:
$100
Permit Type:
Electrical work
Building Type:
N/A
Spr 2019 cbrc: buildout of amenity spaces on the 13th and 14th floors. there will be minimal demolition on the existing floor new finishes millwork electrical and plumbing per plans (occupancy goups a3 b type 1a construction). **certified plans corrections: conditional permit subject to field inspections **
Valuation:
$6,500,000
Permit #:
100884163
Status:
complete
Fee:
$32,505
Permit Type:
N/A
Building Type:
N/A
Rivian grit footing and foundation
Valuation:
$2,094,960
Permit #:
BLDC2024-5198
Status:
issued
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
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Clayco Inc Reviews
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Clayco Inc License info
Verified License
| License # | TGC052862 |
| Status | Active |
| City | City Of Chicago |
| Type | General Contractor (Class A) |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Clayco 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 # | RCE-42634 |
| Status | Active |
| State | Idaho |
| Type | General Contractor Registration |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Clayco Inc at the State of Idaho Bureau Of Occupational Licenses.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 04-00007220 |
| Status | Active |
| City | Aurora |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of September, 2005. Check the current license status of Clayco 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 # | 410514000330 |
| Status | Active |
| City | District Of Columbia |
| Type | Gen Contr-Construction Mngr |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Clayco Inc with the Department of Consumer and Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1063239 |
| Status | Inactive |
| State | California |
| Type | Glazing |
- According to the California Contractors State 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.
Check this license's status for Clayco Inc at the California Contractors State License Board.
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
| 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 # | C8058 |
| Status | Inactive |
| State | California |
| Type | Architect |
- According to the California Architect 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.
Check this license's status for Clayco Inc at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | Zurich American Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $100,000 |
Insured
| Workers Comp Provider | Zurich American Insurance Company |
41
Permits
- Building permit records show that Clayco Inc has worked on 41 permitted projects.
Clayco Inc Employees
RJ
Robert Clark, Russell Burns, Steven Sieckhaus, C. David Moses, P. Kirk Warden, Kevin Mckenna, Thomas Sieckhaus, Anthony Johnson
Owner
RT
Robert Joseph Trainor
Ceo / President
SB
Sean Matthew Bresnahan
Rme
TL
Tree House Adventures Lllp
Manager