Onshore headquarters details
- Street address
- 1407 West Chicago Avenue
- City
- Chicago
- State / region
- Illinois
- ZIP / postal code
- 60642
- Country
- United States
- Phone
- +1 321 529 1252
- Founded
- 2020
- Website
- onshore.com
- linkedin.com/company/onshorehq
Location map
Open in Google MapsAll Onshore office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Chicago HQ | Illinois | United States | Headquarters |
Showing the headquarters of 6 recorded locations. See every location in GraphIQ →
About Onshore
Onshore is headquartered in Chicago, Illinois, United States. Founded in 2020, the company has 6 recorded locations across 2+ countries and employs approximately 75 people worldwide.
Where is Onshore's main office?
Onshore's main headquarters office is located at 1407 West Chicago Avenue, Chicago, Illinois 60642, United States. This is the company's primary corporate address.
Onshore regional offices
Beyond its headquarters in Chicago, Onshore has recorded locations in United States and Belgium.
Onshore contact information
The main switchboard for Onshore headquarters can be reached at +1 321 529 1252. Official website: onshore.com.
What does Onshore do?
Onshore is an AI-powered tax platform that pairs intelligent automation with human tax expertise to help businesses unlock, optimize, and defend complex incentives like the R&D Tax Credit, 179D Deduction, and Cost Segregation studies. Onshore cuts study timelines from 270 days to just 28, helping companies file in weeks, at 30–50% lower cost, while uncovering up to 15% more eligible credits. Founded in 2020 and based in New York, Onshore serves businesses across industries and is trusted by leading accounting firms, SMBs, and Fortune 1000 enterprises.
Onshore competitors & similar companies
Frequently asked questions
Where is Onshore headquarters?
Onshore's headquarters is located at 1407 West Chicago Avenue, Chicago, Illinois 60642, United States.
How many offices does Onshore have?
GraphIQ records 6 locations for Onshore across 2+ countries, as of October 2026.
What is Onshore's corporate address?
The corporate headquarters address is 1407 West Chicago Avenue, Chicago, Illinois 60642, United States.
When was Onshore founded?
Onshore was founded in 2020 and employs approximately 75 people.
What is Onshore's phone number?
The main phone number for Onshore headquarters is +1 321 529 1252.
How many employees does Onshore have?
Onshore has approximately 75 employees (GraphIQ estimate, 2026).