Series B Funded Advertising Startups
Disclosed Series B round sizes in this advertising set cluster heavily between ~$10M and ~$78M, but one outlier stands apart: Firework raised $150M on 2022…
Disclosed Series B round sizes in this advertising set cluster heavily between ~$10M and ~$78M, but one outlier stands apart: Firework raised $150M on 2022-05-24, dwarfing the next-largest disclosed amounts such as GWI’s $180M on 2022-02-01 and ShopMy’s $78M on 2025-01-24. The smallest disclosed rounds shown are $100K entries from Luxury Presence (2022-03-24) and mediarithmics (2022-02-09), putting the disclosed range at roughly six orders of magnitude.
The 50 records span 2021-04-07 (IRIS.TV) through 2026-04-27 (Audion), with a dense recent window in 2025: multiple rounds land in Q4 2025 (e.g., Agentio $40M on 2025-11-18; Vibe $50M on 2025-10-04; Looma $10M on 2025-12-16). Geography is not a single-country monopoly: North America appears frequently (e.g., New York-based Agentio on 2025-11-18; ChannelEngine in Leiden, Netherlands; multiple U.S. cities across Illinois, Texas, California), while funding secrecy shows up as 2 “undisclosed” amounts (Significo on 2025-10-05; Ontheline Corporation on 2023-03-01).
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Frequently asked
What’s the largest disclosed Series B round in this advertising list, and how far above the rest is it?
GWI’s $180M disclosed round on 2022-02-01 is the top disclosed amount in the rows shown. The next-largest disclosed rounds are far lower (e.g., Firework $150M on 2022-05-24 and ShopMy $78M on 2025-01-24), while several rounds sit in the low tens (such as Looma $10M on 2025-12-16 and Signmoid $12M on 2022-09-14).
Which companies are the low-end disclosed outliers, and what do they imply for deal-size dispersion?
The smallest disclosed amounts are $100K, appearing for Luxury Presence ($100K on 2022-03-24) and mediarithmics ($100K on 2022-02-09). Compared with much larger disclosed raises like GWI’s $180M (2022-02-01) and Firework’s $150M (2022-05-24), the list shows extreme dispersion rather than a tight funding band.
Are there clear temporal clusters among the most recent rounds?
Yes: 2025 contains a concentrated run of Series B closings, including Agentio on 2025-11-18 ($40M), Looma on 2025-12-16 ($10M), and Vibe on 2025-10-04 ($50M). The overall window spans 2021-04-07 (IRIS.TV) through 2026-04-27 (Audion), with the most recent entry at the far end of that range.
Do any cities or geographies dominate, or is it broadly distributed?
It’s broadly distributed across the U.S., Europe, and Israel rather than centered on one city: examples include Audion (Paris, 2026-04-27), Agentio (New York, 2025-11-18), Rusk Media (New Delhi, 2025-10-10), and ChannelEngine (Leiden, Netherlands, 2022-03-15). Within the U.S., multiple different metros recur (e.g., New York, Chicago, California cities), but no single city appears repeatedly in these rows.
How common is undisclosed funding in this list, and where does it occur?
Undisclosed amounts appear 2 times out of the 50 rows: Significo (Austin, 2025-10-05) and Ontheline Corporation (Las Vegas, 2023-03-01). That means size-based comparisons are mostly possible because the remaining rows provide explicit disclosed amounts.
Are there notable size regimes within the disclosed data (mid-teens vs. growth-stage scale)?
A mid- to upper-mid regime shows up frequently: rounds like Circuit ($17M on 2025-02-13), Rusk Media ($12M on 2025-10-10), and Sigmoid ($12M on 2022-09-14) sit in the teens. Separately, a higher scale regime is visible with large disclosed rounds such as Vibe ($50M on 2025-10-04), Channable ($62M on 2022-02-01), and InfoSum ($65M on 2021-08-17), culminating in the $180M GWI outlier.
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