Onshore headquarters details
Location map
Open in Google MapsAll Onshore office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Chicago HQ | Illinois | United States | Headquarters |
About Onshore
Onshore (Private) is headquartered in Chicago, Illinois, United States. Founded in 2020, the company operates across 2 countries with approximately 75 employees worldwide.
Where is Onshore's main office?
Onshore's main headquarters office is located at 1407 West Chicago Avenue, Chicago, Illinois 60642. This serves as the company's primary corporate address and is home to its executive leadership team.
Onshore regional offices
Beyond its headquarters in Chicago, Onshore maintains 6 offices across 2 countries. Regional offices span 2 countries.
Onshore contact information
The main switchboard for Onshore headquarters can be reached at 3215291252. For investor relations, visit onshore.com/investor-relations.
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.
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?
Onshore operates 6 offices across 2 countries as of 2026.
What is Onshore's corporate address?
The official corporate address is 1407 West Chicago Avenue, Chicago, Illinois 60642.
When was Onshore founded?
Onshore was founded in 2020 and has grown to employ approximately 75 people worldwide.
What is Onshore's phone number?
The main phone number for Onshore headquarters is 3215291252.