Venture - Series Unknown Funded Advertising Startups
The 50 most recent Venture – Series Unknown rounds in advertising span a broad timeline, with the majority closing between mid-2021 and late 2022 before ac…
The 50 most recent Venture – Series Unknown rounds in advertising span a broad timeline, with the majority closing between mid-2021 and late 2022 before activity resurfaces in 2025 via Zilch ($177M, London) and Gowit Technology (undisclosed, Newark) in November 2025. Round sizes vary sharply: Viral Nation raised $198M in Toronto in April 2022, while Amagi Media Labs pulled in $95M in New York just weeks earlier. Below $10M, companies like Veylan ($6M, Huntington), Boltive ($8M, Seattle), and Topsort ($8M, Palo Alto) represent the more typical deal size in this classification.
A notable share of rounds — including OpenAP, Polar, and Nickelytics — carry undisclosed amounts, which is common at this round-stage designation. New York and London each appear multiple times in the data, with Seattle and Los Angeles also recurring as bases for adtech and media-measurement companies. Geographic spread extends well beyond North America and the UK, with funded companies headquartered in Oslo, Berlin, Doha, Singapore, Hanoi, and two cities in Belgium.
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Frequently asked
What are the largest disclosed rounds among these advertising startups?
Viral Nation (Toronto) leads at $198M, closed April 2022, followed by Zilch (London) at $177M in November 2025. Amagi Media Labs raised $95M in New York in March 2022 and Mainfactor closed $69M in Philadelphia in September 2021. Waymark (Detroit) and IntelligenceBank (Southbank, Australia) round out the larger deals at $45M and $37M respectively.
Which cities appear most often as headquarters in this dataset?
New York is the most frequent US base, with Polar, Adelaide, Circuit, Amagi Media Labs, Mod Op, and Unacast all headquartered there. London is the leading non-US hub, accounting for Zilch, Optima Partners, Monterosa Productions, and RevLifter. Seattle shows up three times via Boltive, Yesler, and Direqt.
How much of the funding in this set is undisclosed?
Roughly half of the 50 rows list undisclosed amounts — including OpenAP, Sandwich, Sponix, Appota, Nickelytics, Polar, and Gowit Technology. This makes aggregate capital estimation unreliable for this classification; the disclosed amounts alone range from $100K (EYWAMEDIA, NewsReach India) to $198M (Viral Nation).
When was the peak period of deal-closing activity in this segment?
The bulk of rounds cluster between July 2021 and July 2022. Circuit and Tise both closed in the first week of July 2022; KERV Interactive and Primer closed within days of each other in May 2022. After July 2022, the next rounds in these 50 rows don't appear until September 2025 (Veylan, $6M; Sandwich, undisclosed) and November 2025 (Zilch, $177M; Gowit Technology, undisclosed).
Which non-US and non-UK markets have advertising startups represented here?
Canada contributes Viral Nation ($198M, Toronto) and NexTech AR Solutions ($10M, Toronto). Belgium accounts for StoryChief ($4M, Gent) and CHILI publish ($11M, Erembodegem). Other markets include Norway (Tise, $20M, Oslo), Germany (Freaks 4U, $18M, Berlin), Australia (IntelligenceBank, $37M, Southbank), Singapore (EYWAMEDIA, $100K), Qatar (Sponix, undisclosed, Doha), Vietnam (Appota, undisclosed, Hanoi), India (NewsReach India, $100K, Ahmedabad), and Spain (Wuolah, $6M, Sevilla).
What does the lower end of the deal-size range look like in this classification?
EYWAMEDIA (Singapore) and NewsReach India (Ahmedabad) each raised $100K, the smallest disclosed figures in the set. Kennected (Indianapolis), Direqt (Seattle), Vossler Media Group (Kirkland), and Digital Earth Network (Sarasota) each closed at $1M. These sub-$2M rounds are scattered across the 2021–2022 window alongside nine-figure deals in the same classification.
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