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Top Series B Marketing tech companies

Tools for marketers: CRM, attribution, content, ads, growth, and analytics. Filtered to companies whose latest disclosed round is Series B.

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Built from a search like: “Top Series B Marketing tech companies”

Ranked by current headcount across Series B Marketing tech companies. Refreshed daily.

  1. 1
    PT. The Nielsen Company Indonesia· Indonesia
    • Series B
    • 709 employees
    • Founded 2006
  2. 2
    21GRAMS· New York, New York, United States
    • Series B
    • 495 employees
    • Founded 2017
  3. 3
    LoyaltyOne· Toronto, Ontario, Canada
    • Series B
    • 486 employees
    • Founded 1991
  4. 4
    Firework· San Mateo, California, United States
    • Series B
    • 352 employees
    • Founded 2017
  5. 5
    Firefly· New York, New York, United States
    • Series B
    • 341 employees
    • Founded 2017
Reveal 145 more·100 free credits, no card

Find engineers and founders at Series B Marketing tech companies

Series B Marketing tech companies are some of the most active hirers in the market. The list above ranks the largest Marketing tech companies whose latest disclosed round is Series B, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 150matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Marketing tech share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Marketing tech talent is concentrating right now.

Refolk converts this list into a search. Ask for “Series B Marketing tech founders hiring senior engineers” or “design leads at Series B Marketing tech companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Marketing tech companies whose latest disclosed funding round is Series B from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 12:21:39 GMT

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