Seamless.AI alternative: the mobiles and emails, as one free file

Seamless.AI's pricing page is a form, so no price per 1,000 contacts can be worked out from its pages. Its credits can: the free license is 50 contacts, a year of Basic 3,000, a year of Pro 120,000. The free file holds 5,182,067 people with a mobile phone or an email.

Seamless.AI's free plan offers “Verified Emails, Cell Phones, and Direct Dials For Everyone You Need to Sell to”, as its blog puts it. The free file's, for the people who decide: unzip it into us_10m/ and pip install duckdb; this ran on the October 2026 file, on a laptop, in under a second:

import duckdb

duckdb.sql("create view people as select * from 'us_10m/us_smb_mid_market_persons.parquet'")
duckdb.sql("create view companies as select * from 'us_10m/us_smb_mid_market_companies.parquet'")

# Owners, founders, CEOs and presidents with a mobile phone or an email, with their company, to a CSV
duckdb.sql(r"""
  copy (
    select p.FULL_NAME, p.CURRENT_JOB_TITLE, c.NAME as COMPANY, c.LINKEDIN_INDUSTRY, c.EMPLOYEE_COUNT_RANGE,
           p.MOBILE_PHONE, p.EMAIL, p.CITY, p.STATE_CODE, p.LINKEDIN_URL
    from people p
    join companies c on c.LINKEDIN_ID = p.CURRENT_JOB_COMPANY_LINKEDIN_ID
    where regexp_matches(p.CURRENT_JOB_TITLE, '\b(owner|co-owner|founder|co-founder|ceo|chief executive officer|president)\b', 'i')
      and not regexp_matches(p.CURRENT_JOB_TITLE, '\b(vice|assistant|product owner|process owner)\b', 'i')
      and (p.MOBILE_PHONE is not null or p.EMAIL is not null)
  ) to 'decision_makers.csv'
""")

The titles are matched as written on LinkedIn, so the CSV holds a “Franchise Owner” and a “Broker Owner” along with the presidents and CEOs; add a state, an industry or a size to the where to cut it down. One person you're looking at on LinkedIn, as Seamless.AI's extension does:

# One person's mobile and email from their LinkedIn URL
duckdb.sql("""
  select FULL_NAME, CURRENT_JOB_TITLE, MOBILE_PHONE, EMAIL
  from people
  where LINKEDIN_URL = 'https://www.linkedin.com/in/their-profile'
""").show()

A person the file doesn't hold, it won't find: someone at a company outside the U.S., of fewer than 11 or more than 500 employees, or not in the October release. That's where Seamless.AI's search comes in. More lists, by state, industry and title: build a free B2B leads list with SQL.

• Enrichment in code: send each LinkedIn URL to the LinkedIn profile API, at $0.00125 a profile found and nothing for one Up2Data can't find. A script for a whole CSV: get LinkedIn profile data with Python.
• What other tools' free plans give: free B2B database; Lusha's and ZoomInfo's, next to the same file: Lusha alternative, ZoomInfo alternative. A list of LinkedIn URLs matched to their mobiles and emails in one query: ContactOut alternative.

The free file is on your dashboard once you sign up with your work email, with the $5 credit and your API key.