RubyKaigi 2015, 11-13 Dec. #rubykaigi

Cookpad Inc.

http://cookpad.com/

Cookpad is a global technology company whose mission is to make cooking fun! Our services help people enjoy cooking daily across the world, including Japan, the USA, Spain, and Indonesia. To help us continue to deliver value to our users as fast as possible, we’re exploring ways to split up our service with techniques such as microservices architecture and the development of a global recipe platform.
Money Forward, Inc.

https://moneyforward.com/

Money Forward, Inc. is a fintech startup serving both individuals and SMEs.

Our BtoC service is "Money Forward", largest personal financial management service in Japan.
We provide our service through our web, smartphone and tablet applications. Money Forward is designed to visualize what is going on with your money by automatically integrating data from over 2,500 financial institutions and currently has more than 3.0 million users.

Our BtoB service is a SaaS based solution, "MF Cloud" series, a cloud-base service for accounting, invoice and payroll operations for SMEs. MF Cloud accounting connects to many devices, including smartphone and tablets. Currently we serve more than 400,000 businesses.
pixiv

http://www.pixiv.net/

Since 2007, pixiv has built an online community for creators around the mantra “It’s fun drawing”. pixiv has since used Ruby on Rails to build BOOTH (a C2C e-commerce service), pixiv comic (a site offering online digital comics/manga) and WorldCosplay (a cosplay community platform). Engineers all around the world have adopted Ruby - not just because Ruby is a superior language, but because of the immensely attractive community behind it. Just as the art on pixiv transcends language, so too does the Ruby community. We will continue to support the creators of the world, regardless of medium - code or canvas.
Speee, Inc.

http://speee.jp/

Speee has a mission to "Contribute to growth of society by creating new service which has an impact on our world" and deliver high added value through both Business-to-Business and Business-to-Consumer services.
In August 2015, we invited Mr.Yukihiro Matsumoto, who invented Ruby, as an engineering adviser and Mr.Masahiro Ihara, who had been working for Cookpad as an engineering manager, to reform our engineering department's system and organization structure.
We are now aiming to become "Speee as a technology company".

Minnano Wedding

http://www.mwed.jp/

Minnano Wedding provides accurate and reliable information about 'wedding' as a customer generated media. Wedding is like once-in-a-lifetime event for everyone. So, we focus on user's true voice. To improve quality and speed in development aspect, we've been using Ruby on Rails since 2012. Now we need more 'Rubyist' to push forward our project. Come and join us!

Tabelog

http://tabelog.com/

Tabelog is the best way to find restaurants and review them in Japan. From 2005, we have accumulated over 7 Million Reviews and date for about 800k restaurants. We help "Over 70 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. Now you can use Tabelog in United States too! http://www.tabelog.us/.
DWANGO Co., Ltd.

http://dwango.co.jp/

We, DWANGO Co., Ltd., are an entertainment company striving to create the next generation of network communication throughout various genres such as gaming and music. Our products include online and packaged games, music services for mobile, and “niconico douga”—a service that has over 50 million registered users and is one of Japan’s largest video sites. We confide in our strength of innovative ideas and advanced networking technology to provide high quality content across various platforms.
Recruit Marketing Partners Co.,Ltd.

http://www.recruit-mp.co.jp/

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X-Flag Studio

http://xflag.com/

X-Flag Studio is the entertainment division of mixi, Inc. Working under the slogan, “Extraordinary Adventures,” we aim to bring excitement and joy to consumers through our entertainment content. X-Flag Studio focuses on exciting battle games and original animated content for a global audience.
Aiming

https://aiming-inc.com/

Aiming Inc. is a company that is striving to be the number one online smartphone games company in the world.
Since its inception in 2011, Aiming has been a proven leader in the field of producing high quality, real-time MMO, MO, and strategy games. Aiming's flagship title, “Logres of Swords and Sorcery: Goddess of Ancient”, is the most successful smartphone MMO game in Japan with a number one spot on the iOS sales charts.
It is the real-time communication and web technologies on the server side that make all of this possible. Those web technologies are written mainly in, and supported by, Ruby.
Akatsuki Inc.

http://aktsk.jp/

At Akatsuki Inc., we are focused on enriching the world around us with the power of games. We believe in the potential that games possess and our mission is to make the world a better place through the entertainment that they provide. We dream of a society where people do not work for money but work for personal satisfaction and reflect this in our company culture. From our office in Nakameguro, we are set out to change the world.

Wantedly

https://www.wantedly.com/

Wantedly is a Tokyo-based startup that uses the web to make work the most exciting it’s ever been.
To make this happen, we’ve created a platform where people and companies meet based on passion and values, rather than money or benefits. Everyday we work on adding new features that further enrich your work experience.

Eiwa System Management, Inc.

http://www.esm.co.jp/

ESM is one of the best company building Ruby/Rails application with agile way in Japan. We believe in Ruby and Agile because we believe in people. Our focus is to maximizing client's return on investment.

DeNA Co.,Ltd.

http://dena.com/

dena_loves_ruby

Bit Journey, Inc.

http://bitjourney.com/

Bit Journey was founded in 2015. We're developing a new web service for building a great company with Ruby and Rails. We really appreciate Ruby, Rails and open source communities!
Goodpatch, Inc.

http://goodpatch.com/

Goodpatch is a UI (user interface) design company. We've been helping businesses to design and develop digital products since 2011, with studios in Tokyo and Berlin. We are 65 talented developers and UI/UX designers with one vision: move hearts to move the world forward. In other words, we make heart-shaped design.
WebPay, Inc.

https://webpay.jp/

WebPay is a payment platform that simplifies accepting payments in websites and mobile apps.
Integration is a cinch with our simple API and integration libraries available in several languages including Ruby.
We have a transparent pricing table, and a secure system where our customers don't need to process, transfer, or store credit card information.
GMO Pepabo, Inc.

https://pepabo.com/

GMO Pepabo, Inc. is a Tokyo and Fukuoka-based leading tech company that has strong advantages in technologies including Ruby-related ones such as Ruby, Rails, and mruby. Not only are we a prolific Web service provider using Rails, but we also have contributed to the Ruby world for years; we employ a CRuby committer and many prominent Ruby hackers.
Fastly

https://www.fastly.com/

Fastly is the only content delivery network that gives businesses complete control over how they serve content, unprecedented access to real-time performance analytics, and the ability to cache frequently changing content at the edge. Our secure, global network allows enterprises to increase revenue and improve customer experiences across their websites and mobile applications while maintaining fast, consistent, and reliable performance. Learn more at Fastly.com and follow us at @fastly.
Degica

https://www.degica.com/

Degica is a leading provider of Japanese digital commerce solutions. Our e-commerce and digital payment technologies provide global businesses and developers the access they need to penetrate and succeed in the Japanese market.
Forkwell Jobs

https://jobs.forkwell.com/

This is a job board made for engineers by engineers with special consideration of skill and preference. in the listings, you can observe the progression of projects and the tools used in at the workplace, as well as the technology utilised. Engineering output information is also available.
Enigmo Inc.

http://www.enigmo.co.jp/

BUYMA, launched in 2005 by Enigmo Inc., has grown into one of Japan's largest social online fashion services. This year, we've released the English version of BUYMA for a global audience, as well as a new fashion media service, STYLE HAUS. We're developing these services using Rails, so we're looking for passionate Rubyists to change the world with us!
MediWeb, Inc.

http://www.mediweb.jp/

MediWeb is a leading provider of medical cloud solutions, with a mission to improve healthcare services through cutting-edge ICT. Always on the lookout for the best tools and agile processes to deliver outstanding applications, MediWeb's multinational team uses Ruby not only in Rails backends, but also in embedded devices that connect to other medical systems, and in our native mobile apps.
GitHub, Inc.

https://github.com/

GitHub is the best way to build software together. Whether it's your company's app, your favorite open source library, or a weekend side project, GitHub helps everyone work better by providing tools for easier collaboration and code sharing on any device. Start collaborating today—open source project hosting is free!
Pivotal Labs

http://pivotal.io/

Pivotal Labs is a product consulting practice that has been at the leading edge of agile, XP, and Lean for over 20 years. We practice full time pair programming, disciplined test driven development, and a lean approach to product definition that enables us to teach our clients a new way of working while we create amazing products with them.
Travis CI GmbH

https://travis-ci.com/

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