Radar Companies AdTech · Tokyo
Radar · AdTech in Tokyo

Best AdTech Companies in Tokyo, Japan

The 51 best AdTech companies in Tokyo, Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Flywheel.

51companies tracked
$54.6Mdisclosed funding
0unicorns
12have raised

Ranked: Best AdTech companies in Tokyo

#CompanyDisclosed fundingLast roundStageFounderFoundedTech stackPatents & IP focusRecent signals
1Flywheel
Provider of enterprise data platforms transforming siloed information into AI-ready assets
$11M77 mo agoSeries ANaoto Yokoyama
CEO & Co-founder
2018WordPressApple iCloud MailGoogle Workspace+33
2Adgo
AI-enabled social media ad campaign management platform for advertisers
$10M23 mo agoSeries BMichael Kim
CEO
2014
3SpiderAF
Provider of platform protecting marketing from fraud and security risks
$8M57 mo agoSeries BSatoko Ohtsuki
Founder & CEO
2011WebflowAmazon Web ServicesGoogle Ads+30
4Cinemacraft
Interactive video monetization platform
$7M125 mo agoSeries A2010
5FreakOut
RTB enabled demand side platform
$7M160 mo agoPublic2010WordPressApple iCloud MailMySQL+235 patents
Digital signage support structures and information processing platforms for advertising systems.
1 launch
6Fringe81
Provides creative optimization service
$4M137 mo agoPublic20052 patents
Ad image distribution server platforms for targeted digital advertising
7Intimate Merger
AI-based ad analytics solutions provider
$3M91 mo agoPublicTakeharu Yoshizawa
CEO
2013
8Geniee
Offers SSP and ad exchange
$2M121 mo agoPublic2010WordPressMySQLPHP+19
9AdMaker
Mobile advertising optimization platform
$2M189 mo agoDeadpooledKiyo Kobayashi
Co-Founder & CEO
2009
10App-cm
Mobile video ad compression
$1M124 mo agoSeries AAtsufumi Otsuka
Founder
2015Google CloudNginxGoogle Font API+7
11GeoLogic
Provides location based advertising platform
$907K97 mo agoSeedWataru Noguchi
Founder & CEO
2014WordPressMySQLPHP+13

Top 12 AdTech companies in Tokyo

#1
Series B · Tokyo, Tokyo · founded 2014
$10.2Mraised

AI-enabled social media ad campaign management platform for advertisers. The platform enables merchants of online platforms to create & run advertising campaigns across social media channels, helps in measuring outcomes of campaigns, to increase sales, and increase revenue. Clients include Spartan Race, Moneytree, and Golftec, among others.

Funding rounds
  • Aug 2024Series B$1.7M
  • Nov 2021Series A$393.7K
  • Dec 2020Series A$550K
  • May 2020Series A$7.6M
Founders & team
Michael KimCEO
Investors
AccelerAsia
#2
Series B · Minato City, Tokyo · founded 2011 · 46 employees
$7.9Mraised

Provider of platform protecting marketing from fraud and security risks. It offers solutions for ad fraud protection, fake lead protection, affiliate fraud protection, and website security. The platform detects fraudulent clicks, identifies risky scripts, prevents fake leads, and safeguards affiliate campaigns. It provides tools for digital marketers and website managers to improve performance and maintain control.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 2k LinkedIn followers — 8.8% of this cohort's audience
Funding rounds
  • Oct 2021Series B$5M
  • Nov 2019Series A$2.9M
Founders & team
Satoko OhtsukiFounder & CEO
Investors
Headline, Mitsubishi UFJ Capital, Darwin Venture Management, Nippon Venture Capital, Darwin Ventures, Accord Ventures
Tech stack
AhrefsAmazon AlbAmazon SesAmazon Web ServicesCdnjsCloudflare
#3
Series A · Shibuya, Tokyo · founded 2018 · 1 employees
$10.7Mraised

Provider of enterprise data platforms transforming siloed information into AI-ready assets. The company offers a data utilization platform that connects fragmented, structured and unstructured data across internal and external systems, converting it into formats suitable for analytics and machine learning. Its solutions build AI-ready data foundations, visualizing relationships between datasets and supporting applications such as search, demand forecasting, recommendation engines, and decision simulation. Services include design and operation of data infrastructure, pipelines, governance, and integrations so organizations can accelerate productivity, optimize costs, and scale AI use cases on top of their existing environments.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 6k LinkedIn followers — 30.8% of this cohort's audience
Hiring: 1 hiring post in 12 mo (public) · hiring: Technical Product Manager
Funding rounds
  • Feb 2020Series A$10.7M
Founders & team
Naoto YokoyamaCEO & Co-founderDaigo HamuraCo-Founder & CTO
Investors
Globis Capital Partners, World Innovation Lab
Tech stack
All In One SeoApple Icloud MailAutoptimizeBootstrapCdnjsClipboard.Js
#4
Series A · Tokyo, Tokyo · founded 2010 · 5 employees
$6.9Mraised

Cinemacraft is an interactive media monetization platform. Private label solution enables brands and publishers to deliver context driven engagement on videos and photos. Cinemacraft provides ‘dynamic’ embeds which display a selection of segments from a video rather than a single frame. Enables brands to convert promotional videos into a videogram and served into ad networks. Brands and agencies can create display, pre-roll, post-roll ad units out of existing video content.

Funding rounds
  • Mar 2016Series A
  • Feb 2015Series A$3.9M
  • Feb 2014Series A$775K
  • Jun 2013Series A$1.5M
Investors
500 Global, Jungle Ventures, Samsung Venture Investment, ABC Dream Ventures, Media Camp, Ntt Docomo Ventures
#5
Public · Minato City, Tokyo · founded 2010 · 485 employees
$6.9Mraised

FreakOut is Japan's first RTB enabled Demand-side platform. Offers multiple targeting criteria such as search targeting, site retargeting, demography, device, interest, placement targeting etc. Provides Data Management platform which collects audience behavior, demographic, interest data. Also, offers native ad platform called Hike, marketing automation tool called Mary. Has inventory supply partnership with DoubleClick, OpenX, Rubicon, Kauli, Geniee, and Microsoft.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 2k LinkedIn followers — 8.0% of this cohort's audience
Activity: 1 product launches · 1 partnerships (incl. Technology Partner) announced in 12 mo
Funding rounds
  • Mar 2013Series B$5.4M
  • Feb 2012Series A$1.5M
Investors
YJ Capital, GMO Venture Partners, JAFCO Group, Z Venture Capital
Tech stack
Amazon CloudfrontAmazon Web ServicesApache Http ServerApple Icloud MailCdnjsCloudflare
#6
Public · Minato City, Tokyo · founded 2013 · 53 employees
$2.5Mraised

AI-based ad analytics solutions provider. The product offered by the company is a data platform that solves client's data utilization issues. The features include landing page optimization, affiliated internet research, and survey, advertising cost management, branding ad rating, etc.

Funding rounds
  • Dec 2018Series A
  • Aug 2016Series A$2.5M
Founders & team
Takeharu YoshizawaCEO
Investors
Dentsu, YJ Capital, Mobile Internet Capital, SMBC Venture Capital, Z Venture Capital
#7
Public · Minato City, Tokyo · founded 2005 · 52 employees
$3.5Mraised

Fringe81(formerly known as RSS Ads, Inc) provides creative optimization service. Ziogous is an auto-generated advertising delivery platform that improves the CTR of banner ads by accumulating enormous amount of data such as catch copies and main visuals. It enables data analysis of banner ads that has been relied on experience and intuition. In addition Fringe81 also provides RSS advertising business, Twitterbanner business, and social application business.

Funding rounds
  • Feb 2015Seed$3.5M
Investors
TBS Innovation Partners, Ntt Docomo Ventures, Istyle, Dentsu Innovation Partners, Gree, ITV
#8
Public · Shinjuku City, Tokyo · founded 2010 · 666 employees
$2Mraised

Geniee's RTB platform allows advertisers to target specific demographics or geographical locations. Geniee offer DSP, SSP, AdExchange, DMP for targeted advertising. Geniee automatically analyzes the keyword on the site content in the URL unit, with its own development technology to deliver AdSense to the policy 'Safe GAURL'. Geniee had partnered with Mediamath and officially certified in the 'Google certified partner for publisher'.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 9k LinkedIn followers — 43.7% of this cohort's audience
Funding rounds
  • 2016Series D
  • Dec 2015Series D
  • Oct 2014Series B
  • Feb 2013Series B
Investors
Global Brain, YJ Capital, SoftBank Group, Fenox Venture Capital, STRIVE, MDI Ventures
Tech stack
All In One SeoAmazon Web ServicesContact Form 7Core-JsCreatejsFacebook Pixel
#9
Deadpooled · Tokyo, Tokyo · founded 2009
$1.7Mraised

NOBOT provides a smartphone ad-optimization SDK called AdMaker that enables to display the best set from multiple ad networks for the iPhone/Android users. AdMaker enables the mobile app developers to switch between Ad-Networks. Nobot has cooperation with Ad-Networks in various countries, Mojiva (US), Zestadz (US), buzzcity (Asia), and Medialets (Rich Ads/US) along with Japanese domestic Ad-Networks.

Funding rounds
  • Oct 2010Series A$1.3M
  • Mar 2010Seed$341.5K
  • Oct 2009Seed$83K
Founders & team
Kiyo KobayashiCo-Founder & CEOAtsuhiro TakahashiCo-Founder & CTO
Investors
Nissay Capital, Icon Ventures, Samurai Incubate
#10
Series A · Tokyo, Tokyo · founded 2015 · 10 employees
$1.2Mraised

App-CM has developed a video format based on VP9, an open-source video compression codec by Google. Corresponding to in-stream video ads protocol VAST, the new format enables compression of up to one-tenth to one-twentieth in data volume compared to typical formats. A video viewing plug-in compatible to the App-CM format should be installed on a viewer’s mobile web browser to support playing the ads.

Funding rounds
  • Mar 2016Series A$1.2M
Founders & team
Atsufumi OtsukaFounder
Investors
Yeahmobi, MT Partners
Tech stack
Google AdsenseGoogle AnalyticsGoogle CloudGoogle Cloud CdnGoogle Font ApiGoogle Hosted Libraries
#11
Seed · Shibuya, Tokyo · founded 2014 · 25 employees
$906.7Kraised

Provider of location advertising and marketing services intended to promote small and medium enterprises. The company's services offer location-based advertising that aims to target users with position information data, targeted ads based on wealth and family composition as well as the targeting of ads for application developers and advertising vendors, enabling businesses to increase their brand recognition, establish an online presence and maximize brand value.

Funding rounds
  • Jun 2018Seed$906.7K
Founders & team
Wataru NoguchiFounder & CEO
Investors
Genesia Ventures, Line Ventures
#12
Series A · Tokyo, Tokyo · founded 2015
raised

Platform offering AI based retargeting solution. It targets the users that visit the website. The AI performs push delivery communication with conversations personalized for each user.

Funding rounds
  • Feb 2023Series A
Founders & team
Shinya IshikawaCEO
Investors
GxPartners, Start To Asia, MTG Ventures, MicorAd, Xiyang Capital, GLOBIS

Funding & investor landscape

$54.6Mtotal disclosed funding
11companies funded
22disclosed rounds
0rounds last 90 days
Most active investors
YJ Capital3 rounds
Z Venture Capital3 rounds
Daiwa Corporate Investment2 rounds
Incubate Fund2 rounds
Jungle Ventures2 rounds
Ntt Docomo Ventures2 rounds
500 Global1 rounds
ABC Dream Ventures1 rounds
AI CROSS1 rounds
AccelerAsia1 rounds

Notable founders

Michael Kim
CEO · Adgo
Satoko Ohtsuki
Founder & CEO · SpiderAF
Naoto Yokoyama
CEO & Co-founder · Flywheel
Daigo Hamura
Co-Founder & CTO · Flywheel
Takeharu Yoshizawa
CEO · Intimate Merger
Kiyo Kobayashi
Co-Founder & CEO · AdMaker
Atsuhiro Takahashi
Co-Founder & CTO · AdMaker
Atsufumi Otsuka
Founder · App-cm
Wataru Noguchi
Founder & CEO · GeoLogic
Shinya Ishikawa
CEO · HitoBito
Prism market signals · Japan · country-scoped Prism corpus, 1,989,715 docs

Market landscape — 10 sub-themes by coverage

Share of AdTech coverage by sub-theme.

Regulatory-risk over time rising

Funding & growth over time

funding rising · growth rising

Common questions

How many AdTech companies are there in Tokyo, Japan?
Radar tracks 51 indexable AdTech companies headquartered in Tokyo, Japan that meet our profile-completeness bar.
What is the total funding raised by AdTech companies in Tokyo, Japan?
The AdTech companies in Tokyo, Japan on this list have raised a combined $54.6M in disclosed equity funding across 11 funded companies.
Which is the highest-funded AdTech company in Tokyo, Japan?
Flywheel is the highest-funded AdTech company in Tokyo, Japan, with $10.7M in disclosed equity funding.
How many AdTech companies in Tokyo, Japan are funded?
11 of the 51 AdTech companies in Tokyo, Japan on this list have disclosed at least one equity funding round.
How many AdTech unicorns are there in Tokyo, Japan?
None of the AdTech companies in Tokyo, Japan on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in Tokyo, Japan AdTech companies?
The most active investors in Tokyo, Japan AdTech companies on this list include YJ Capital, Z Venture Capital, Daiwa Corporate Investment, Incubate Fund, Jungle Ventures.
Rohit KhannaTrends & Stories

Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.

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