🚀 See Middesk in action with an instant, self-guided demo

Verify and onboard more business customers, faster

Middesk enables simple and trusted business onboarding. Verify and onboard business customers seamlessly with instant, reliable insights—so you can confidently say yes to more businesses, faster.

Get a demo

5M+ business onboarding decisions made with Middesk every year

Our Platform

The business identity platform for onboarding, underwriting, and monitoring

Business Verification

Optimize and automate KYB

Win more business customers with frictionless onboarding experiences that meet your compliance requirements and risk thresholds.

A UI illustration showing a business search, along with the TIN match id, office address, and people associated with the business.

Credit Assessment

Easy lien filing and credit assessment

Evaluate business credit risk and search, file, and terminate liens in a one-stop solution.

A UI illustration showing a 'file a lien' user flow along with a dashboard indicating the number of a open, closed and unknown liens.

Power seamless payroll tax setup at scale

Automate payroll tax setup for your customers in all 50 states

500+ companies rely on Middesk to onboard and grow

“With Middesk, we’ve introduced significant automation and efficiency into our onboarding flows. We can now compliantly auto-approve over 50% of new applicants, eliminate the risk of onboarding bad actors, and convert good customers faster using their technology."
Chief Revenue Officer | BILL
"Middesk has taken the brunt of the compliance workload off of our customer support team so they can continue helping our customers with timely resolutions to any issue they encounter with their background checks."
Mike Spolarich
Mike Spolarich
Staff Software Engineer | Checkr
“When a customer signs up for Plaid, they want to start building on our APIs right away. Middesk has been a critical partner enabling us to quickly and seamlessly onboard new customers.”
Chris Campano
Chris Campano
Risk Lead | Plaid
1250
Hours of analyst time saved per year

How Novo streamlined onboarding and enhanced efficiency with Middesk

10,000+
KYB applications processed each month

Why Middesk?

In business onboarding, the best identity data wins

Use the freshest data

With direct connections to every secretary of state office, the IRS, and hundreds of state, county, and city government agencies, Middesk can verify 100% of registered U.S. businesses faster than any other provider.

Unlock unique risk insights

AI models identify patterns predictive of compliance, fraud, and credit risks that only Middesk can measure across our extensive database of businesses, providing unique risk insights to customers in Middesk’s network.

Obsess over the user experience

Middesk’s user-friendly API and dashboard are lightyears ahead of your legacy data vendors. Build frictionless onboarding experiences for your customers and give analysts tools they’ll love using.

An illustration showing a grid system with green nodes going to 4 labels that include Secretary of State, Alternative Sources, Internal Revenue Service and Federal, Cities, Counties.
An illustration showcasing a radar with red pins highlighting where high risk liens have been found and screened.
A UI dashboard showing the Paseo Inc business example, along with various metrics such as address, address risk, SOS filings, risk rating, risk indicators and a map of alternative addresses.

Use the freshest data

With direct connections to every secretary of state office, the IRS, and hundreds of state, county, and city government agencies, Middesk can verify 100% of registered U.S. businesses faster than any other provider.

Unlock unique risk insights

AI models identify patterns predictive of compliance, fraud, and credit risks that only Middesk can measure across our extensive database of businesses, providing unique risk insights to customers in Middesk’s network.

Obsess over the user experience

Middesk’s user-friendly API and dashboard are lightyears ahead of your legacy data vendors. Build frictionless onboarding experiences for your customers and give analysts tools they’ll love using.

The latest from Middesk

See all resources
Blog
May 1, 2025

Alternative vs. authoritative data — why the best KYB strategies use both

Insight
April 8, 2025

How modern KYB balances security and customer satisfaction in business onboarding

Event
April 29, 2025

Middesk Product Demo: Verify