CARTA ZERO
CARTA ZERO is a Japan-domestic integrated digital marketing company and Dentsu Group subsidiary that provides enterprise brands with strategy, creative, media, and proprietary ad technology (Zucks Ad Network, PORTO DSP, Media Digital Connect, ZERO AI) under a single platform-plus-services model.
- Company typePrivate
- Founded2025
- HeadquartersTokyo, Japan
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What CARTA ZERO does
CARTA ZERO is a Japan-domestic integrated digital marketing company and wholly-owned subsidiary of CARTA HOLDINGS, which is itself consolidated under Dentsu Group. Formed on July 1, 2025 from the merger of three specialized marketing companies, the firm offers enterprise clients an integrated stack spanning marketing strategy, creative production, media planning and buying (digital, social, and offline), and proprietary technology products. Its two core owned platforms are Zucks Ad Network, a publisher-side ad network for mobile inventory, and PORTO, a brand-focused DSP for programmatic advertising. Supporting products include Media Digital Connect, a media matching platform connecting advertisers to 300+ participating media partners, and ZERO AI, an AI-driven marketing solution offering predictive audience modeling using Amazon Ads AMC Custom Models for Audiences via AWS Clean Rooms ML.
The company generates revenue through agency fees, media commissions, performance-based pricing on digital advertising services, technology platform licensing for its proprietary products, and professional services for AI/predictive analytics engagements. It sells primarily through direct enterprise field sales supplemented by co-selling arrangements within the Dentsu Japan network and channel partnerships with platform partners (Google, Criteo, Pinterest, SmartNews, Amazon Ads). Customer base is concentrated in Japan and skews to large enterprise brands across diverse verticals — including Daiichi Sankyo Healthcare Direct, Sekisui Chemical, Kao Corporation, FeileB, and Aron Alpha — with a secondary focus on D2C brands. The company holds tier-1 platform partner certifications (Google Premier Partner, Criteo Platinum, Amazon Ads Advanced, SmartNews Diamond), JICDAQ brand safety certification, and a NTT DOCOMO data partnership that supplies ad identifiers, attribute information, location data, and behavioral history for audience targeting and ad delivery analysis.
CARTA ZERO firmographics
Firmographics- Name
- CARTA ZERO
- Legal name
- 株式会社CARTA ZERO
- Website
- https://cartazero.co.jp
- Company type
- Private
- Founded year
- 2025
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- CARTA ZERO is a Japan-domestic integrated digital marketing company and Dentsu Group subsidiary that provides enterprise brands with strategy, creative, media, and proprietary ad technology (Zucks Ad Network, PORTO DSP, Media Digital Connect, ZERO AI) under a single platform-plus-services model.
- Ownership category
- akta.pro rank
CARTA ZERO industry classification
Industry- Product category
- Digital Marketing Services
- NAICS
- Advertising Agencies (541810)
- SIC
- Services-Advertising Agencies (7311), Services-Advertising (7310)
- akta.pro primary industry
- Marketing Technology, AdTech & MarTech Services (BPAFAAAN)
- akta.pro secondary industries
- Media Inventory & Yield Management / Ad Operations (Trafficking, Tagging, QA) (BPAFABAO), Marketing Technology (MarTech) Strategy & Stack Advisory (MPAAAFAJ)
Keywords
Where CARTA ZERO is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices1 record
Markets served
CARTA ZERO business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Digital Advertising Services: Full-service digital marketing including strategy, creative production, media planning/buying across digital, social, and offline channels. Revenue generated through agency fees, media commissions, and performance-based pricing.
- Technology Platform Licensing: Proprietary platforms including Zucks Ad Network, PORTO DSP, and other marketing technology tools provided to clients.
- AI/Predictive Analytics Services: Advanced AI-powered audience modeling and predictive analytics services using Amazon AMC and other data sources.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels7 records
CARTA ZERO product offering
Product offeringCore offering
CARTA ZERO provides integrated digital marketing services for enterprise advertisers and brands, combining strategy, creative production, media planning/buying, and proprietary technology products. Core offerings include full-service digital marketing across digital, social, and offline channels, alongside proprietary platforms such as the Zucks Ad Network (mobile ad network), PORTO (brand advertiser DSP), Media Digital Connect (media matching platform with 300+ partners), and ZERO AI (AI-powered marketing analytics using Amazon AMC Custom Models for Audiences).
Product overview
CARTA ZERO is an integrated digital marketing company and subsidiary of CARTA HOLDINGS, offering a platform-plus-solutions model combining strategy, creative, media, and proprietary products. Its core proprietary ad products are Zucks Ad Network (an ad network for publishers) and PORTO (a brand advertiser DSP/platform). Supporting offerings include the Media Digital Connect media matching platform, the ZERO AI AI-powered advertising solution, and AMC Custom Models for Audiences-based services leveraging Amazon Ads and AWS Clean Rooms ML for custom audience prediction. The company also provides integrated marketing services spanning social media consulting, SNS operations, and data marketing.
Differentiator
Problem solved
Functional benefit
Brands
- Zucks Ad Network: Ad network service operated by CARTA ZERO
- PORTO
- ZERO AI
- Media Digital Connect
Products and services
- Zucks Ad Network
- PORTO
- Media Digital Connect
- ZERO AI
- AMC Custom Models for Audiences Advertising Service
- Integrated Digital Marketing Services
Quantifiable outcome
- 3.7x year-over-year growth in inquiries for Media Digital Connect platform
- +2 more outcomes
Companies that use CARTA ZERO
Customer profileNamed customers5 records
Segments2 records
Ideal customer profiles2 records
CARTA ZERO technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability4 records
Feature5 records
CARTA ZERO partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core.
- SmartNews AdscoreDiamond Partner status for SmartNews Ads for two consecutive years together with Dentsu Digital, indicating top-tier partnership for news media advertising distribution.
- NTT DOCOMOcoreData partnership for third-party provided information including advertising identifiers, attribute information, location data, and behavioral history. Utilizes DOCOMO data for audience targeting and ad delivery analysis, with data shared with advertising partners.
- Amazon AdscoreCARTA ZERO is certified as an 'Amazon Ads Advanced Partner' and leverages AMC (Amazon Marketing Cloud) Custom Models for Audiences functionality to build custom AI predictive models for client advertising campaigns including new brand purchase prediction, customer lifetime value prediction, and churn probability prediction using AWS Clean Rooms ML.
- CriteocoreCARTA ZERO is certified as a Criteo Certified Partner with Platinum status, part of the Dentsu Group partnership. Also won Partner of the Year BRAND SOLUTION award jointly with Dentsu Digital for branding solution revenue growth and client problem-solving.
- Pinterest JapancoreWon Best Brand Agency award and Creative category Pioneer Collective award at PinPro Award 2025, recognizing outstanding marketing strategies and results using Pinterest advertising for clients during fiscal year 2025.
- GooglecoreAchieved 2025 Premier Partner status in Google Partners program, the highest tier reserved for top 3% of participating companies in Japan, demonstrating expertise in Google Ads campaign management.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
CARTA ZERO competitors and assessment
Company assessmentDirect peers
- BrainPad Inc. Japanese data-driven marketing and digital analytics company. Comparable as a digital marketing and AI/analytics player in Japan targeting enterprise brands, though smaller and more focused on data/analytics than full-service creative.
- Septeni Holdings Co., Ltd. Japanese digital marketing group operating digital ad agency, ad tech (Septeni Original DSP), and influencer marketing. Directly comparable as a Japan-focused digital marketing peer with proprietary technology and was named alongside CARTA ZERO in the PinPro 2025 joint award.
- Digital Holdings Inc. Japanese digital advertising holding company providing integrated digital marketing services, AI-driven advertising, and content marketing. Comparable as a Japan-focused digital marketing peer using AI to power advertising services targeting enterprise brands.
- i-mobile Co., Ltd. Japanese mobile ad network and digital marketing company. Comparable as a Japan-based digital ad tech and marketing solutions peer operating its own ad network (similar positioning to Zucks Ad Network) for mobile advertising.
- Macromill, Inc. Japanese digital marketing services and market research company providing online research, digital marketing, and global panel-based insights. Comparable as a Japan-based digital marketing peer with enterprise clients and a hybrid data-and-services model.
- Dentsu Digital: Dentsu Digital is the closest comparable to CARTA ZERO — both operate as digital marketing operating companies under the Dentsu Group umbrella in Japan, offering strategy + creative + media + technology solutions for enterprise advertisers. They frequently co-bid and jointly win awards (e.g., PinPro 2025, Criteo Partner of the Year).
Broad incumbents
- CyberAgent Inc. Japanese digital media conglomerate operating AIcreative, programmatic (Dynalyst), and Internet advertising businesses. Highly comparable as a large diversified digital ad player with proprietary ad tech and AI initiatives competing in Japan's digital ad market.
- ADK Holdings Inc. One of Japan's big-four ad holding companies with integrated marketing, creative, media, and digital capabilities. Comparable as a large incumbent Japanese agency group with enterprise clients and digital transformation focus similar to CARTA ZERO's remit.
- Hakuhodo Inc. One of Japan's two largest advertising agency groups; offers integrated digital marketing, creative, media buying and data analytics for enterprise brands. Comparable as a full-service incumbent with comparable client roster (Kao, Daiichi Sankyo, etc.) and presence across digital and traditional channels.
Emerging players
- FreakOut Holdings, Inc. Japanese programmatic advertising platform operator offering DSP/DMP technology. Comparable as a Japan-based ad tech competitor with proprietary programmatic technology, targeting a similar advertiser base but with a more product/platform-led focus than CARTA ZERO's agency-plus-tech hybrid.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
CARTA ZERO social profiles
Digital presenceCARTA ZERO compliance and trust
Trust signalCompliance4 records
CARTA ZERO financial estimates
Financial estimateRevenue estimate
Valuation estimate
CARTA ZERO leadership team
Management profileNumber of profiles
Profiles1 record
CARTA ZERO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CARTA ZERO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about CARTA ZERO
What does CARTA ZERO do?
CARTA ZERO provides integrated digital marketing services for enterprise advertisers and brands, combining strategy, creative production, media planning/buying, and proprietary technology products. Core offerings include full-service digital marketing across digital, social, and offline channels, alongside proprietary platforms such as the Zucks Ad Network (mobile ad network), PORTO (brand advertiser DSP), Media Digital Connect (media matching platform with 300+ partners), and ZERO AI (AI-powered marketing analytics using Amazon AMC Custom Models for Audiences).
Is CARTA ZERO a public or private company?
CARTA ZERO is a private company. It is classified as corporate owned and is currently operating.
When was CARTA ZERO founded?
CARTA ZERO was founded in 2025. It employs 501 to 1,000 people.
Where is CARTA ZERO based?
CARTA ZERO is headquartered in Tokyo, Japan, in the Asia region.
How does CARTA ZERO make money?
Three revenue lines are on record. Digital Advertising Services are the primary driver. The others are technology Platform Licensing and AI/Predictive Analytics Services.
Who are CARTA ZERO's main competitors?
Direct peers on record are BrainPad Inc., Septeni Holdings Co., Ltd., Digital Holdings Inc., i-mobile Co., Ltd., Macromill, Inc. and Dentsu Digital. Broad incumbents are CyberAgent Inc., ADK Holdings Inc. and Hakuhodo Inc.. FreakOut Holdings, Inc. is listed as an emerging player.
Does CARTA ZERO have an API?
No public API is recorded for CARTA ZERO.
What industry is CARTA ZERO in?
CARTA ZERO's product category is Digital Marketing Services. Its primary akta.pro industry code is BPAFAAAN, Marketing Technology, AdTech & MarTech Services, with a secondary code of BPAFABAO, Media Inventory & Yield Management / Ad Operations (Trafficking, Tagging, QA). Its NAICS code is 541810 and its SIC code is 7311.