Turning Data into Results.
A Marketing Company
for the Digital & AI Era
SOKAI Inc.
Our Business
What We Do
AI & Data-Driven Strategy
Every winning strategy starts with a deep understanding of data. Combining AI with a specialized team, we analyze vast data on customer interests, values, and behavior to shape personalized initiatives grounded in market trends.
Brand Strategy & Definition
To be chosen again and again, you need a brand concept that sets you apart. We decode customer insights from data to define the brand value your company should communicate — a consistent foundation for every initiative.
Digital Ad Operations
From search ads to app campaigns, we run every kind of digital advertising by combining AI-powered automation with human expertise. Guided by phase-specific KPIs, we balance volume and efficiency while avoiding budget risk.
Social Media Marketing
From Instagram, TikTok, and X to full YouTube channel management, we communicate your brand’s appeal on every platform and nurture long-term fans — designing campaigns that look beyond follower counts to conversions.
SEO & AI Search Optimization
Search now extends beyond Google to AI-powered search such as ChatGPT. With content strategies grounded in business and customer analysis, we make sure you can be found — through both traditional SEO and optimization for the AI search era.
Web Design & Production
We don’t just build beautiful websites — we design customer experiences that drive results. Experienced creative directors give shape to your brand’s world, combining creativity with data-driven improvement to transform your business.
Work Process
Research & Analytics
We start by understanding your business as it stands, clarifying challenges and your position in the market. Using AI and data analysis, we research markets, competitors, and customers from every angle to lay the groundwork for the shortest path to results.
Communication & Planning
Based on the challenges we clarify, we propose multiple solutions, budgets, and schedules designed to deliver. We segment audiences around target insights and refine the strategy through ongoing dialogue with our clients.
Management & Creativity
Experienced marketers, data scientists, and creators team up to execute each campaign. Having worked inside operating companies ourselves, we think from the client’s perspective and move as one team — that is SOKAI’s strength. We combine AI-driven efficiency with human creativity to deliver precise results.
Adjustment & Results
We measure performance, then repeat analysis and improvement at speed. By setting realistic, measurable KPIs and acting on data, we keep growing results sustainably.
Our Marketing Team
Toshiaki Ueno
In 2007, joined Rakuten, Inc. Was put in charge of budget development in digital marketing, and operations in the Rakuten marketing department.
In 2014, assigned to Rakuten Malaysia for a short period to improve marketing ROI.
In April 2015, in the New Service Development Office directly under the supervision of the CEO’s office, supported user acquisition and customer development for new services.
In September 2016, established “Sokai”, a digital marketing company that solves customer issues and provides strategy development, planning and implementation of new measures.
A graduate of Globis University (MBA).
Nariaki Tsuji
In 2010, joined i-Prospect Japan. Engaged in listing advertisements, and conducted the management, analysis, reporting, and improvement cycle for up to 30 companies per month.
In 2014, moved to NTT DATA Smart Sourcing Corporation. Was involved in planning and implementing advertising campaigns for major clients with annual budgets of 300 – 500 million yen.
Places great importance on communication and making well thought-out suggestion based on client needs. By eliciting, organizing, and visualizing the client’s thoughts and ideas, goals can be clarified and implemented.
Yoshiaki Kosaki
Started professional career as a PG/SE in a software development venture.
Performed technical analysis, identified business procedures and requirements, created requirement documents and system specifications, and was involved in basic system design and development.
In 2006, joined Bayer, a German pharmaceutical company. In the R&D department, worked as PM and CSV leader (Computerized System Validation) in major projects (including global projects). As a team leader in the IT department, managed IT quality assurance, auditing and regulatory activities and provided training (project management, quality management, innovation.)
With a strong foundation of IT experience, competent in handling global project management.
Yuzi Kakizaki
In 2013, became interested in the Web industry and changed careers from working as an airline employee of ANA.
Aided e-commerce sites in improving their sales with focus on SEO. Has been involved in SEO for web media with over 500,000PV and 1,000,000PV, as well as improving the websites of national clients and listed companies.
Based on interviews, has been successful in quickly setting up daily processes that in some cases increased annual sales by 150% or in other cases increase monthly sales 10-fold. Manages several blog sites, has gained much experience and many skills, and has a motto not to give advice based on theories.
Takeru Kitamura
Studied architecture for seven years, from technical high school through university. While still a student, he joined a staffing company as head of marketing and PR, winning a ¥2 million contract on his very first project.
He went on to build a wide-ranging marketing track record, including social media management for major clients — developing web strategies with a management perspective, solving numerous client challenges, and maintaining a project retention rate of over 90%.
In video, he handles everything from planning and filming to editing and distribution: short-form content for YouTube, TikTok, and Reels, ad creative, interview / event / product and store videos, seminar recordings, and live streaming. He oversees direction, production, and cost management, delivering improvements in both retention and conversion rates.
Yusuke Ichimura
Began his career at a systems company in the Panasonic (Matsushita Electric) Group, building and maintaining e-commerce infrastructure, driving corporate sales, and supporting EC business launches across Japan.
In 2008, he became an executive officer at Image Solutions, leading an end-to-end solutions business spanning web production, system development, data analysis, and logistics.
In 2011, he founded Coolas Inc. and, as CEO, led e-commerce and web marketing for major apparel brands — driving merchandising analysis, UI/UX improvement, advertising, and business process reform.
From the late 2010s, he served as a board director at growth-stage startups, overseeing app business strategy, UI/UX, data analysis, and marketing.
More recently, he has advised a sharing-service company in the SDGs space on business strategy and municipal partnership projects. He also serves as a part-time lecturer at Digital Hollywood University Graduate School.
Moto
In 2012, moved to the US and started working in numerous SNS/Digital marketing projects mainly connected to Europe, South America, and Japan.
With extensive digital marketing experience has been able to support projects for more than 30 companies as a DX/Digital Marketing Consultant.
Joined Sokai in 2020.
From 2022, started working as a marketing researcher with MBA professors in the US to conduct research on “Advertising clutter”.
Trilingual in Japanese, English and Spanish, and has lived in the U.S., Mexico, and Peru.
Graduate of The University of Minnesota (Twin Cities) majoring in Business and Marketing.
Naoki Hirokawa
In 2008 joined ValueCommerce. Was responsible for advertising sales, media sales, and business development, and is familiar with the overall mechanism of affiliate advertising.
In 2014, joined CyberZ (a subsidiary of CyberAgent). As a consultant, launched a group in the SNS marketing area for Facebook and Twitter ads, while developing internal operations.
In 2015, joined Geniee, Inc. As a member of the operations staff, managed the planning and operations of in-house DSP, SSP & trading desk. Also served as the head of DSP / overseas cross-border business and as a member of the management committee.
Hiroyuki Yokomura
Has worked for Dentsu Group, Hakuhodo, and Universal Studios Japan. Provides support for various domestic and global businesses.
Specifically, has marketed for “avex” entertainment, sports distributor Alpen Group, and theme park USJ, creating a major re-branding movement. With a strong grasp of the fundamentals of market insight, guides clients in the desired direction through a combination of real and holistic digital development.
Resist the Usual. Master of ASAS (Dentsu Y&R Global Ad-Marketing Skills)
A graduate of Keio University, Faculty of Economics.
University of Tokyo, Economics Certificate (Game Theory: Strategic Planning.)
Rika Hayashi
After joining Tokio Marine & Nichido Fire Insurance as a new graduate, switched jobs and spent 10 years with transcosmos inc.
Was engaged in SNS advertising, both B2C and B2B, and is especially good at PR and operational marketing on Instagram.
Furnishes suggestions that take into account not only the number of followers but also engagement, subsequent purchase and loyalty actions.
Sticks to the goal of ensuring SNS is used correctly and effectively as a medium to attract customers.
A graduate of Keio University, Faculty of Economics.
/ We generate Marketing & Inovation ideas / We generate Strategy & Inovation ideas
BUSINESS
CENTER
For Professionals Pursuing High-Impact Growth
SOKAI Inc. runs the “SOKAI Business Center,” an initiative that centralizes the skills and knowledge of experts across every field. By joining the Business Center, professionals gain universal insights and skills for creating value across generations. We look forward to hearing from ambitious professionals ready to redefine their careers.
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