DeNA Co., Ltd.,
DeNA (pronounced “D-N-A”) develops and operates a broad range of services including games, automotive, healthcare, sports and other diversified offerings. Founded in 1999, DeNA built a core competency in internet technology, but as that becomes increasingly commodified, DeNA is now developing a core competence in AI, and making use of this technology across its businesses.
DeNA’s mission is to Delight and Impact the World, and DeNA aims to, as an eternal venture, bring delight to the world using the internet and AI.
We are developing a SaaS which is mounted a cutting edge AI which can review contracts. LegalForce aims to help enterprises cut legal costs, while improving quality, and better compete in a globalized world.
We leverages machine learning algorithms to analyze contracts, ranging from NDAs to outsourcing agreements, extract data, organize & manage contract databases, and even suggest revisions. Under the hood, Matz is advising, and it’s (almost) all Ruby!
We are a technology startup that optimizes communication between companies and users.
The Customer Engagement Platform “Repro” has the largest share of mobile apps in Japan.
The platform can collect more than 1 billion user behaviors and attributes each day, segment users through AI and analytics, and execute marketing actions (such as personalized pushes, messages, and ad serving) at the right time.
Recently, we have established a branch in Singapore and are expanding our service to APAC.
Repro is a company that has grown up with Ruby and Rubyist, and we are very honored to be able to sponsor RubyKaigi.
Shopify is a leading global commerce company, providing trusted tools to start, grow, market, and manage a retail business of any size. Shopify makes commerce better for everyone with a platform and services that are engineered for reliability. Now powering 1 million businesses globally, Shopify is using Ruby to ship at scale.
"Timee" is a "gig work" app that allows you to work immediately and get paid immediately.
Just select the job you want to work on the app at your time. No interviews or resumes are required.
When you finish working, you can get paid immediately without having to wait for paydays.
At the same time as working style is free, such as double work and freelance,
In Japan, serious problems.
So, with the vision of "enriching your time", we launched a work sharing service that can be used without direct application.
Focusing on "time" and "technology", we aim to promote diversification of workforces and solve problems.
Timee hopes the development of technology as a tech company and is willing to help.
Our mission is "Making your local life smarter and more fun". Tokubai has been grown up since we started the service in 2013 and became one of the largest digital flyer and bargain information service in Japan. More than 51,000 retailers from all over Japan deliver valuable information to the customer through our platform.
We support the development of the Ruby community as it continues to enable us to deliver our value to users quickly and safely.
[We renamed our company Locoguide inc. from Tokubai in Aug 2019.]
GMO Internet Group
Internet for Everyone
Since the GMO Internet Group began its Internet related business in 1995, we have striven to offer services that make the internet easier to use, richer, and more enjoyable under our corporate slogan "Internet for Everyone." Our goal through these services is to create a new internet culture and industry, to inspire and bring smiles to the faces of our customers, and to contribute to both society and people everywhere.
Drecom Co., Ltd.
With the aim to be an incubation center for new services that would bring fun and surprise to the world, Drecom Co., Ltd. has been challenging to produce new services that bring new lifestyle and value into the world since the foundation.
We designs, develops and offers various services that center around smart device communication, as exemplified by our entertainment content for smart device and online advertisement service, and our business focus lies in the following three areas: social gaming, ad solution/media.
Since 2005, we have applied Ruby for many of our applications and services and have been successfully drawing wide attentions for our services. As a way to appreciate and giving back, we continue to contribute to the Ruby community, through applying Ruby for our services and increasing engagement to the community.
Ruby Committers' & Wi-Fi Sponsor
Cooking isn’t just a matter of putting together ingredients.
When you cook, you choose. You choose what to buy, what to eat, and how to nourish yourself, your family, and friends. You choose how to give back to communities, both local and global. When you cook, you choose to become a maker of tomorrow’s world.
Here at Cookpad, each day is about inspiring more people to make these choices.
Our work is about making everyday cooking fun for all, because we see a brighter future. And we believe that the power of cooking will get us there. That is the Cookpad mission.
Since March 1998, Cookpad has provided online recipe sharing and search services. It’s a global platform used by over 90 million people every month across the world. Over 6 million recipes have been created by people in 74 countries/region (as of September, 2019).
Hack Cafe Sponsor
Our mission is to "Think through every problem with depth and clarity". To bring the future a little forward. We solve various issues in our society with technology. Based on our core competence "Data Intelligence", we develop businesses in Marketing Intelligence field and Digital Transformation fields such as Native Ads Platform and Online Real Estate service.
We will be continuing to bring the future forward by thriving technology and developing businesses.
SmartHR is a software solution that focuses on increasing productivity for the backoffice.
We take care of boring paperwork by putting everything on the cloud.
No more handwriting. No more waiting at government offices. Just fill out a simple online form and SmartHR generates digital versions of pension, employment/health insurance, and other HR-related documents – which can then be submitted to the appropriate offices through the e-Gov API by the click of a button.
As a big fan of Ruby, we're excited to become a sponsor of this Kaigi.
Turning encounters into innovation.
Our world is built on encounters; they are the very basis of society. We want to change the way people do business by revealing the potential of every encounter. We aim to foster encounters that will bring about innovation in all areas, and in doing so develop innovative functionality in our products. We will change the way people think about their business encounters, and even change the way those encounters take place.
MedPeer, Inc. is a "HealthTech" company founded by a doctor. We operate MedPeer, one of the largest online community for doctors where 1 out of 3 doctors in Japan participate. We also provide other healthcare services. Our development language is Ruby, and we actively adopt useful tools. We aim to reinvent healthcare with a "collective intelligence" of 120,000 doctors accumulated on our platform and technology.
ANDPAD is No.1 product for home builders and renovators to have the site-work efficient and manage the gross profit of construction.
We have various features of products such as chat communication, ERP(Enterprise Resource Planning), chart management of work schedule, EDI(Electronic Data Interchange), cloud storage for all business-related documents, and report generating so we deliver integrated efficiency for making the industry work happier.
Our mission is “Make Creation Start Easily, and Carried On.“Launched in 2014, “note” is a media platform that enables creators to post texts, manga, photos, audios, and movies, and users to enjoy the contents and support them. We have over 20 million monthly active users and five million works posted on the platform.note will support the creative activities of all types of people and all types of organizations, and will continue to support them so they continue to create.
Tabelog is the best way to find restaurants and review them in Japan.
From 2005, we have accumulated over 34 Million Reviews and data for about 900k restaurants. We help "Over 100 Million People" find their best restaurant with scores based on the reviews. Along with our Search Service, we also provide a Booking Service, Credit Card Payment Service and so on. Since 2007, we have been developing Tabelog with Ruby. We're hiring Rubyists! Help us build further splendid service.
Get job offers from top 100+ tech companies.
Automatically analyze and visualize your contributions on GitHub, certify your programing skills.
Following the corporate philosophy of "User Surprise First," mixi Group is always working to exceed the imagination and expectations of users. Since 1997, mixi Group has created communication services for friends and family to enjoy together, including the social network mixi and the multiplayer mobile app Monster Strike. The group will continue to work toward enriching lifestyles of the future under the mission of "For Communication" by developing new businesses and services via IT to inspire communication around the world.
TenshokuDRAFT powerd by LIVESENSE
TenshokuDRAFT is recruitmennt service. Companies put out the job offer with annual income based on their skills and experience to IT engineers, just like the professional baseball draft.
Akatsuki dreams of a society where emotion develops into rewards. People are content and act voluntarily in the society.
For the mainstay mobile gaming business, we develop and operate games to provide exciting user experience.
We also want to provide the world with excitement and connection through several businesses including the Live Experience business, where we provide real fun experiences.
ZOZO Technologies, Inc.
The mission of ZOZO Technologies, Inc. is to operation services and to develop technology that will help improve the entire ZOZO Group. ZOZO Technologies is a collection of those who are currently involved in technical productions, such as engineers, designers and analysts of the ZOZO Group companies.
ZOZO Technologies will also be in charge of operating “ZOZO Research”, which is our research institute. By applying the Strat Today Technologies’ expertise in innovation, we aim to achieve ZOZO Research’s mission of “Scientifically defining and predicting fashion”.
STORES makes it easy for anyone to create an online store with a professional look and feel. We enable creative and passionate entrepreneurs to enjoy long lasting business success though design and technology.
Keiken System CO.,LTD.
Keiken System is an independent software developer in Nagano. We have been working on software development and various services that meet the needs of the times.
We have built a deep trusting relationship with many users and developed the history of computer spread in Our Homeland.
We focused on Ruby early on and was certified "Ruby System Integrator Gold" in 2012 as the first software company in Nagano pref.
With the knowledge we have cultivated so far, we have achieved good results for customers nationwide.
We will continue to challenge evolving IT technology.
Forkwell is the Japanese largest portfolio service for engineers to measure and track their skill growth. Forkwell also provides job search/recruiting platform based on the portfolio so engineers can prove their skill by their work.
giftee is a Tokyo-based eGift company. We provide eGift services to both consumer and business clients to empower their communications with the power of eGift. Nearly 80% of Japanese eGifts are provided via our service, which is all built by Ruby. And now, we are enhancing our services to Southeast Asia from 2019.
Linkers Corporation provides the business matching platforms, focused on manufacturing.
Our mission is supporting to create good collaborations for manufactural proposals.
Linkers and LFB(Linkers For BANK), our services, are the platforms designed to extend customers' scope to find more suitable partners.
SMS CO., LTD.
SMS is a global company whose mission is to create values and contribute to society by providing an "information infrastructure for an aging society." We have developed over 40 services based on infromation technology which are targeting those who are associated with aging society in Japan and Asia Oceania since our founding in 2003.
Being Co., Ltd is a software development company, established in 1984. We have been
developing and distributing various software for business use, one of which is
dedicated for construction industry and a best seller in this field. In addition,
we were successfully able to develop a first Japanese origin project management tool
based on Theory of Constraint, which has been helping to improve efficiency of
operation of manufacturing field mainly.
Our subsidiary company called Luxiar Co., Ltd has been engaged in developing software
with Ruby on Rails in particular and has been providing a lot of solutions
for its customers by using earned intelligence and experiences.
Money Forward, Inc.
Money Forward is a fintech startup delivering tools to visualize and improve both individuals’ and SMEs’ financial health.
Our BtoC service “Money Forward ME”, is the largest personal financial management application in Japan.
Through web, smartphone and tablet, we automatically integrate data from over 2.6K data sources and deliver the service to more than 9.0M users.
Our BtoB service “Money Forward Cloud” is a SaaS based solution for back office optimization.
In return to the power of open source we have benefited since launch of our product, we have employed a fulltime committer to further enhance the Ruby community.
Simply put, Money Forward moves your life forward, and Ruby further.
Fastly helps the world’s most popular digital businesses keep pace with their customer expectations by delivering fast, secure, and scalable online experiences. Businesses trust Fastly’s edge cloud platform to accelerate the pace of technical innovation, mitigate evolving threats, and scale on demand. Founded in 2011, Fastly powers online destinations including Airbnb, GitHub, Alaska Airlines, Pinterest, Vimeo, The Guardian, and The New York Times. Learn more at Fastly.com and follow us on Twitter @FastlyJapan and @fastly.
We are Ruby specialists developing mainly original products such as plug-in for Redmine and meeting minutes software with voice recognition in a stress-free and flexible environment (remote work, full-flex, MacBook Pro, wide sub-displays, comfortable PC chairs, height-adjustable desks, free choice of editor/library/flamework).
ESM is one of Japan's premier companies building Ruby/Rails applications in an agile way. We believe in Ruby and Agile because we believe in people. We build applications which work well and make customers happy.
GA technologies Co., Ltd.
GA technologies is a PropTech (Property Technology) company.
We run an integrative PropTech brand call RENOSY.
We striving to transform real estate dealings into a more familiar course of action through application of artificial intelligence and other advanced technologies.
Our motto is “Real And Tech.” We make effective use of AI and other technologies for house-hunting that is done by visiting each property on foot, and are attempting to transform business in property purchase and investment, which has been a daunting task for most people, into a more familiar course of action.
Bit Journey, Inc.
Bit Journey, Inc. was established in 2015. We are using Ruby on Rails to develop Kibela, an information sharing tool for building powerfully creative teams. We are truly grateful to the Ruby and open source community.
"mybest" seeks to provide an answer to the process of "selection." We envision a world where making choices online is more simple and enjoyable.
i³ Systems, Inc.
i³ Systems based in Fukuoka and Tokyo is working on service development under the mission, “Making IT more familiar”. One of our products, CLOMO MDM, provides an EMM (Enterprise Mobility Management) service for many companies.
Rakuten / Rakuma
Rakuma is CtoC flea market where anyone can buy & sell. Our mission is "Re:valuation". We create various values by synergy with the Rakuten ecosystem. For example, we released features such as charging feature for users' sales deposit to Rakuten Cash. To grow further, We're hiring Rubyists!
TORETA is a SaaS-based restaurant reservation platform built with Ruby. Combining POS Connect—for seamless connections with POS systems—and Media Connect—a real-time reservation and seating management system—TORETA delivers comprehensive reservation solutions to facilitate efficient restaurant operations and ensure that diners experience true hospitality and service.
Under our corporate mission, "New trends that will change the world.", Enigmo is aiming to create unprecedented services through the internet.
Enigmo's core business, BUYMA, is uniquely positioned to offer a broad range of retail products and the latest fashion items from all over the world.
Degica is a leading provider of Japanese digital commerce solutions. Our Ruby-powered e-commerce and digital payment technologies provide businesses and developers the access they need to succeed in the Japanese market. We are active supporters of the Ruby community and our engineers are prominent contributors to the Ruby ecosystem.
Wovn Technologies, Inc.
"WOVN.io" is SaaS service that realizes multilingualization of online services like websites, apps, etc. Our mission is to make it possible for people around the world to access all data in their native language.
Monstar Lab, Inc.
Headquartered in Shibuya-ku, Tokyo, Monstar Lab, Inc. provides access to top talent and specialists around the world as the foundation for all of the group’s activities. The company consists of more than 1200 engineers and creators in offices in 26 cities and 15 countries worldwide.
Since 2007 we have been supporting our clients' Rails app development, focusing on modern development methods and having good communication at all times. We assist developer's happy lives with their family and friends.
Machimachi is the largest private social network for neighborhood in Japan.
We are providing a matching service “Crassone” between Clients (house owners) and Partners (construction companies) in the field of home building.
Free software is important in ClearCode. We develop/support software with our free software development experiences. We feed back our business experiences to free software.
Learnings SNS “Studyplus"
Studyplus is a free learning management mobile application which also offers SNS features and various process visualisation.
Ruby Development Inc.
Ruby Development Inc.'s main activity is the rapid implementation of web services which are deployed on cloud platforms with a development that follows the agile method.
PIXTA is an online marketplace of stock images and footages. We develop the backend using Ruby. For technical details, please see our blog: https://texta.pixta.jp
We are Fintech company based in Nagoya, and are providing a cloud invoicing service for SMBs.
Our mission statement is "Simplify business operation by code".
We are developing and selling sales and inventory management systems for midsize and small businesses. The advantage is the approach from both "real" and "web".
esa is a SaaS in which you can share documents with your teammates in Markdown.
More than 3,000 teams already have been using esa (\( ⁰⊖⁰)/)
Saeloun is a Ruby on Rails and ReactJS Consulting and Development Company.
We help scale teams and build Web and Mobile Applications.
Network Applied Communication Laboratory Ltd.
Network Applied Communication Laboratory (NaCl) is made up of many members developing open source software including Yukihiro "Matz" Matsumoto, Ruby developer and NaCl fellow.
ZENET Co., Ltd.
13 years in Rails system development and operations. We provide a wide system range, from financial and public systems to the latest web services for startups.
BPS Co., Ltd.
We've been developing Rails apps and iOS/Android apps since 2007, and also publishing tech articles on our blog "TechRacho": https://techracho.bpsinc.jp/
“Distributors of Wisdom” – We provide online learning service “StudySapuri” in Japan, and “Quipper” in Indonesia, the Philippines, and Mexico.
Supporting creators around the world, pixiv Inc. provides various services which are visited by more than 40 million creators and their fans.
Sider (renamed from SideCI) is a GitHub integrated tool that automatically analyzes pull requests against custom per-project rulesets, as well as general best practices.
bosyu Co., Ltd.
bosyu is the simplest place to make “something you are good at” as your work.
Everyone can find a new work and help each other.
SMARTCAMP CO., LTD.
We provide BtoB SaaS platform "BOXIL", inside sales consulting and outsourcing service "BALES" and inside sales management SaaS "Biscuet" with our vision "Small Company, Big Business."
Opt, Inc. is an "Innovation Agency" in Japan.
While running parallel with the vision and mission of various customers, innovate business and create new value.