What KDDI Web Communications does

KDDI Web Communications Inc. is a Tokyo-based, wholly-owned subsidiary of KDDI Corporation (acquired October 2007) operating under the KDDI Digital Divergence Holdings DX subgroup since July 2022. The company delivers a multi-product IT services portfolio organized into four service lines: (1) cloud hosting and infrastructure under the CPI brand (shared and dedicated servers, domain/SSL, WAF, automatic backup) supported by east-west redundant KDDI data centers, complemented by the new KWC Mail cloud email service and the SmartRelease U test-server/release management tool; (2) no-code website creation via JIMDO (Creator and AI Builder), which serves more than 2 million users in Japan and 32 million+ globally and now ships with AI Companion and Brand Monitoring as standard features; (3) communication platforms aggregated under the KWC PLUS umbrella, comprising Vonage CPaaS APIs, UJET smartphone-focused cloud contact center (with Google CCAI integration), MiiTel voice-analytics IP phone, and the V Call plugin for kintone; and (4) digital marketing services including CROSSRING influencer marketing (a wholly-owned subsidiary since March 2021) and the ANKA MART SSL coupon e-commerce store. The company sells through a hybrid GTM combining direct field sales to enterprises and government, inside sales for mid-market, self-serve online platforms for SMBs (JIMDO, ANKA MART, SmartRelease U), and channel partnerships with Japan's 254 shinkin banks, ISP/CATV operators, and developer communities. Revenue is generated primarily through recurring subscriptions (CPI, JIMDO paid plans, UJET, KWC Mail), freemium with paid upgrades (JIMDO, SmartRelease U), per-seat and usage-based pricing (Vonage, UJET, MiiTel), transaction fees (ANKA MART SSL), and professional services (CROSSRING), with pricing tiers ranging from JPY 550/month (V Call plugin) to dedicated enterprise servers and bundles priced on inquiry. The company is also the first ETOC-certified exemplary telephone operator in Japan (February 2025) and has held ISMS certification continuously since December 2012, and disclosed a material security incident in June 2026 affecting shared email infrastructure serving ISP partners.

Name

KDDI Web Communications

Legal name

KDDI Web Communications Inc.

Website

https://kddi-webcommunications.co.jp

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

101–250 employees

Short description

KDDI Web Communications is a Tokyo-based, KDDI-owned IT services subsidiary providing cloud hosting (CPI), no-code website creation (JIMDO), and communication platforms (Vonage, UJET, MiiTel) to Japanese SMBs, large enterprises, government, ISPs, and shinkin bank partners.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales, Others

Revenue model

1. Cloud/Hosting Services (CPI): Recurring subscription revenue from rental server plans (shared and dedicated) for businesses, government, and educational institutions. Plans range from shared hosting to high-performance dedicated servers, billed monthly/annually.
2. Web Services (JIMDO): Freemium model for JIMDO website creation: free tier available, paid tiers (Start/Grow) with advanced features. AI Companion and brand monitoring included at no additional cost on paid plans. Additional revenue from optional rankingCoach SEO tool.
3. Communication Platform (Vonage, UJET, MiiTel): Subscription and usage-based revenue from CPaaS APIs (Vonage), contact center solutions (UJET), and cloud IP telephony (MiiTel). Pricing per user/month for UJET; API usage-based for Vonage. V Call plugin for kintone billed per company at JPY 550/month.
4. Platform/VAS for ISPs: Platform services sold to ISP and CATV operators including virus protection, security, and spam filtering subscriptions (Virus Buster, Kaspersky, McAfee, etc.) with per-user or subscription billing.
5. SSL Coupon Sales (ANKA MART): E-commerce revenue from selling SSL certificate coupons at discounted prices to businesses, plus Adobe Creative Cloud enterprise license resale. Transaction-based product sales.
6. Influencer Marketing (CROSSRING): Fees for influencer marketing campaign planning, execution, and measurement services, including ad agency functions. Managed service / professional services revenue model.
7. KWC Mail Cloud Email Service: Monthly subscription revenue for dedicated cloud email service with DKIM/DMARC support. Contract terms of 3, 6, or 12 months with tiered pricing. Disk capacity and per-account capacity management included.
8. Website Release Management (SmartRelease U): Freemium (free plan with 1 test server, 5GB) and subscription (basic plan JPY 1,650/month with 5 test servers, 20GB) models. Additional paid options for extra test servers and capacity.
9. Agriculture IoT (てるちゃん): Hardware sales (router JPY 19,800, sensor JPY 4,950) combined with recurring monthly fees for system use (router JPY 880/month, sensor JPY 110/month), plus per-use monitoring and notification fees.

Pricing tiers

Go-to-market motion5 records

Distribution channels7 records

Marketing channels13 records

Core offering

KDDI Web Communications provides enterprise web hosting (CPI), a no-code website builder (Jimdo) for small businesses, communication platform APIs (Vonage, UJET, MiiTel), SSL certificate and software licensing resale (ANKA MART), influencer marketing services (CROSSRING), website release management (SmartRelease U), cloud email (KWC Mail), and agricultural IoT (Teru-chan). The company operates as a multi-product technology services firm within the KDDI Group, targeting both Japanese SMBs and large enterprises with digital infrastructure and software.

Product overview

KDDI Web Communications operates as a multi-product technology services company under the KDDI Digital Divergence Holdings DX umbrella, organized into four main service lines: (1) Hosting/Web Infrastructure: rental server brand CPI with 30+ years of history, test/release management tool SmartRelease U, and cloud email service KWC Mail; (2) Website Creation: Jimdo no-code platform (Creator + AI Builder with 2M+ Japan users) featuring AI Companion and Brand Monitoring AI tools; (3) Communication Platform: KWC PLUS umbrella covering Vonage CPaaS APIs (voice/SMS/video/messaging/AI), UJET smartphone-focused contact center (with Google CCAI), MiiTel voice analytics IP phone, V Call plugin for kintone, CLOUD FAX, and Video Conference for Garoon; (4) Marketing/Commerce: influencer marketing service CROSSRING, SSL coupon marketplace ANKA MART, and agricultural IoT Teru-chan. The company positions its portfolio around the philosophy of 'creating, supporting, and connecting' through technology.

Differentiator

Problem solved

Functional benefit

Brands

• CPI: Business-oriented rental server hosting brand serving enterprises, government agencies, and educational institutions.
• ジンドゥー (Jimdo)
• Vonage
• CROSSRING
• ANKA MART (アンカマート)
• SmartRelease U
• UJET
• MiiTel
• V Call for kintone
• てるちゃん

Products and services

• CPI Business-oriented rental server (shared and dedicated) brand serving enterprises and government agencies. Provides web hosting, email services, domain registration, SSL certificates, WAF, and automatic backup since 1997.
• Jimdo (ジンドゥー) No-code website creation service offering Jimdo Creator (manual design with templates) and Jimdo AI Builder (AI-generated websites in minutes). Japan user base exceeds 2 million with 18+ years of service history.
• Vonage Communication Platform Communication Platform as a Service (CPaaS) providing programmable APIs for voice, SMS, video, messaging, AI, and authentication. Enables businesses to embed communication functions into web and mobile applications. Includes Social Commerce via Jumper.ai technology.
• UJET Smartphone-optimized cloud contact center solution with mobile SDK enabling biometric authentication, image/video sharing, and location data during calls. Features Google CCAI integration for AI-powered sentiment analysis and call summarization.
• MiiTel Cloud IP phone and call center service with voice analytics AI. Speech-to-text transcription, talk-time analysis, and AI-generated conversation advice for sales and customer service quality management.
• V Call plugin for kintone Plugin enabling click-to-call and SMS sending directly from kintone management apps. Automatically records and transcribes calls, storing data in kintone. Built on Vonage infrastructure. Monthly fee from 550 JPY per company.
• SmartRelease U High-function test server service for website release management. Enables click-based release from test to production servers, automatic backup, and one-click restoration. Connects to any server via SSH key authentication. Free plan available; basic plan 1,650 JPY/month.
• ANKA MART (アンカマート) EC site for purchasing SSL coupons at discounted prices. Authorized reseller with over 23,000 sales (as of July 2023). Also offers Adobe Creative Cloud enterprise plans. Handles OV, DV, EV, wildcard, and VMC SSL certificates from DigiCert, GeoTrust, Sectigo, and GlobalSign.
• CROSSRING Influencer marketing service leveraging top-tier industry expertise. Supports full-cycle from planning and execution to effectiveness measurement for social media awareness building and brand creation.
• KWC Mail Cloud-based email-only plan for CPI business customers. East-West redundant data centers, DKIM/DMARC support for domain authentication, per-account capacity settings (1-100GB). Starting at 3,080 JPY/month (12-month contract).
• Teru-chan (てるちゃん) Agricultural IoT service using sensors to detect temperature, humidity, and light abnormalities in farm fields, notifying producers via phone, email, or SMS. Minimum kit from 24,750 JPY plus 990 JPY/month system fee. Developed with Okinawa farmers since 2018.

Quantifiable outcome

• JIMDO AI Companion increased first inquiries/orders by 50% within 30 days of activation, and overall inquiry/transaction counts by 40% (based on JIMDO Germany pilot data)
• +8 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration18 records

AI capability21 records

Feature6 records

Partnerships

Nine partnerships are on record, tiered core, significant and minor.

• KDDI Corporation (for KWC Mail Infrastructure)coreTechnology or Integration · 6 August 2025KWC Mail cloud email service runs on KDDI's east-west redundant data center infrastructure, with operations teams at each site. This provides high availability and disaster resilience for the KWC Mail service.
• UJET Inc.coreStrategic or Co-development Partner · 14 March 2024KDDI Web Communications partnered with UJET Inc. (San Francisco) in March 2024 to launch UJET mobile-first cloud contact center in Japan as the first Japanese provider. UJET provides the technology platform while KDDI Web Communications handles Japanese localization, sales, and support. UJET has an exclusive partnership with Google for CCAI-powered contact center solutions.
• Vonage Japan合同会社 (Vonage Japan LLC)coreStrategic or Co-development Partner · 18 May 2023KDDI Web Communications entered a memorandum of understanding with Vonage Japan LLC in May 2023 to provide Vonage communication platform (VCP) in Japan. The company launched Vonage as Japan's first partner in February 2024, offering CPaaS APIs for voice, SMS, video, and AI to Japanese enterprises and developers. KDDI Web Communications provides localized sales, support, and pricing for the Japanese market.
• 信金中央金庫 (Shinkin Central Bank)significantChannel Partner/ Reseller/ Distributor · 25 July 2022Partnership with Shinkin Central Bank and Japan's 254 regional shinkin (credit unions) to provide JIMDO AI Builder to shinkin member small businesses. Includes dedicated partner landing page, 20% first-order discount coupon, and dedicated inquiry support. Aimed at accelerating DX among small businesses served by regional financial institutions.
• Google (for UJET CCAI Integration)coreTechnology or Integration · 1 January 2022UJET has an exclusive partnership with Google for Contact Center AI (CCAI) integration. The CCAI platform provides AI-powered sentiment analysis, conversation summarization, and post-call report generation for UJET contact center users. KDDI Web Communications provides this integrated service in Japan.
• 株式会社クロスリング (CROSSRING Inc.)coreStrategic or Co-development Partner · 1 March 2021KDDI Web Communications made CROSSRING a subsidiary in March 2021 and merged it into the company in December 2023. CROSSRING provides influencer marketing campaign services including planning, execution, and measurement across social media platforms. Integrates with KDDI Web Communications' digital marketing portfolio.
• Jimdo GmbHcoreTechnology or Integration · 1 January 2009KDDI Web Communications has provided JIMDO website creation services in Japan since 2009 under a partnership with Jimdo GmbH (Germany). The company holds exclusive/primary rights for the Japanese market, localizing the platform and providing Japanese-language support. JIMDO has 32M+ websites globally and 2M+ users in Japan.
• KDDI株式会社 (KDDI Corporation)coreStrategic or Co-development Partner · 1 October 2007KDDI Web Communications became a consolidated subsidiary of KDDI Corporation in October 2007. KDDI provides underlying telecommunications infrastructure (east-west redundant data centers, network backbone) for KWC's hosting and email services. KDDI Web Communications operates independently while leveraging KDDI's infrastructure, brand association, and enterprise sales channels. In 2022, KWC moved under KDDI Digital Divergence Holdings (DX-focused holding company within the KDDI group).
• Cloud ON OKINAWA ConsortiumminorStrategic or Co-development PartnerCloud ON OKINAWA is a regional digital innovation consortium in Okinawa Prefecture. KDDI Web Communications participates alongside Okinawa Cellular, CAMPFIRE, Square, freee, BASE, Life is Tech, RAKUSUL, and Ryukyufrogs to promote IT-driven regional revitalization. The initiative supported てるちゃん agriculture IoT pilot programs.

Scale indicators12 records

Recent moves9 records

Expansion highlights5 records

Others

• Jimdo GmbH: German parent company of the Jimdo website builder product that KDDI Web Communications has exclusively distributed in Japan since 2009. Not a competitor per se but the underlying product owner and strategic dependency for the JIMDO business.

Emerging players

• STUDIO: Japanese-founded no-code website builder with strong design focus and growing presence among SMBs and creators. Emerging direct competitor to Jimdo in the Japanese market with design-forward positioning.
• MessageBird: Global CPaaS challenger offering omnichannel communication APIs. Emerging competitor in the CPaaS market where Vonage (now distributed by KDDI Web Communications in Japan) competes.

Direct peers

• Squarespace: Premium no-code website builder targeting SMBs and creators globally. Direct competitor to Jimdo Creator, particularly for design-oriented small businesses and solopreneurs in Japan.
• Sakura Internet: Japanese hosting and cloud services provider offering rental servers, VPS, and dedicated hosting to SMBs and enterprises. Direct competitor to KDDI Web Communications' CPI brand in the Japanese B2B hosting market.
• Twilio: Global CPaaS platform leader offering voice, SMS, video, and authentication APIs. Direct competitor (and historical partner of 10 years until May 2023) to the Vonage CPaaS offering now distributed by KDDI Web Communications in Japan.
• Xserver (Xnet): Japanese hosting provider offering shared, VPS, and dedicated hosting with strong brand recognition among SMBs and individual developers. Direct competitor to CPI in the Japanese rental server segment.
• Wix.com: Global no-code website builder with AI design features. Direct competitor to Jimdo in the website creation market, including a Japanese-localized product competing with Jimdo's 2M+ Japanese user base.

Broad incumbents

• GMO Internet Group: Large Japanese internet conglomerate providing hosting (Onamae.com, Lolipop), domains, SSL, e-commerce, and digital marketing services. Broad incumbent across multiple categories where KDDI Web Communications competes (hosting, SSL via ANKA MART, payment processing).
• Internet Initiative Japan (IIJ): Major Japanese internet and network services provider offering hosting, cloud, security, and connectivity solutions to enterprises. Broad incumbent with overlapping enterprise hosting and managed services offerings with KDDI Web Communications.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/kddiwebcom

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about KDDI Web Communications