The OMI Living File® Database

OMI's B2B Living File® licenses are crafted from our Master File, which is created through the processing of over 40 billion data signals per month. All entity relationships and channel points in the Master File are verified using our proprietary software.

We focus on high-quality, comprehensive, email-centric multi-channel marketing data and provide custom file building for each client, based on the pinnacles of reach, intelligence, and new business data sets.

  •  Authentication
  •  Selects
  •  Reach
  •  Signal
  •  Channel

Take the risk out of database licensing

OMI Living File®

Data quality drives everything we do. At OMI, we view our B2B data as a Living File®. Database maintenance and updates are consistent and ongoing so that our data accurately reflects the changing business environment.

Data Decay

Data decays as people relocate, switch jobs, and update contact information. Approximately 30% change email addresses yearly, while B2B data can degrade by 60% per year. Outdated data hinders campaign effectiveness, risking misalignment and harming email send scores, potentially leading to blacklisting.

Data Accuracy

Digital marketing is only as strong as the data you’re using and the best way to fuel healthy, successful B2B campaigns is with clean, accurate contact data. A Living File® approach is the key to unlocking quality data.

B2B2C Data Matching

Marketers seek to engage B2B prospects both at work and home, driving the rise of the "B2B2C" data matching trend. OMI stands out with match rates surpassing 70% on the B2B to B2C linkage. This enables advanced omni-channel marketing and personalized campaigns, supported by superior data matching services that ensure alignment between B2B and B2C data elements.

Database / Service Stats

Build your custom audience using the following criteria: job title, industry, company revenue, deterministic intent, employee size, geography and more.

  • 145M+ Contacts with Email
  • 18M+ Companies
  • 3M+ New Businesses Email Contacts
  • 800K+ Independent Contractors
  • 4M+ Small Office, Home Office

OMI's B2B Standard File Layout

SMB Database

The World's Largest Database of U.S.-based SMBs

  • 95M+ SMB Email Contacts

There are more than 30 million small businesses in the U.S. alone, representing a significant market opportunity. If you're looking to grow your business by winning over SMB customers, you've come to the right place. OMI offers the largest database of U.S.-based SMB businesses in the world.

Programmatic and Social Audiences

  • 240M+ B2C Digital Contacts
  • 60M+ Social URLs

OMI's B2B2C Digital File Layout

Omni-Channel Data Uses:

  • Social Media

  • Programmatic

  • Email

  • Postal


At OMI, we believe good things happen when you share your knowledge. That's why we're proud to educate marketers at every level - in every size and type of organization - about the basics of email marketing and the contact data that powers it.

  • The Executive's 15-Minute Guide to Building a Successful Email Marketing Database

  • A 15-Minute Guide to Fortune 2,000 Businesses and Executives

  • Five Best Practices for Using Email Marketing to Target SMBs