Digital marketing and DX
for companies growing in India.

Digital marketing and DX for companies growing in India.
The Mumbai arm of Quartet Communications — 15 years, 5,000 clients, 1,500 agency partners and 30+ awards from Google and Yahoo! Japan.

15 Years

in digital marketing

5,000+

clients supported

30+

awards from Google and Yahoo! Japan

1,500+

agency partners

More companies, thriving.

Our work does not end at bringing customers to a client's door. It ends when the problems on the other side of that door are solved too — when the people inside the company can do their work without friction, without waste, and without dreading it.

That is what we mean by a company that is thriving, and we are serious about increasing the number of them. Including our own: we hold ourselves to the same standard, in the service we deliver and in the way we work.

What we do

Performance Marketing

— Search, Meta and Google advertising, managed to the number that matters to your business.

SEO, AIO and Social

— Visibility across search engines, AI assistants and social platforms.

DX and CRM

— Salesforce, marketing automation and the systems that turn leads into revenue.

Japan Market Support

— For Indian companies selling into Japan, and Japanese companies building in India.

Who we work with

01

Companies growing in India

that want digital marketing held to a measurable standard, and the systems behind it built properly.

02

Indian companies entering Japan,

who need advertising, search and messaging executed in Japanese by people who do it every day.

03

Japanese companies operating in or entering India,

who need local execution without building a team from scratch.

Why Quartet

01

We manage by numbers, not by narrative.

We began as a pure advertising operations company, serving advertisers other agencies would not take. That forced a discipline most agencies never develop: every account judged on measurable outcomes, every month. Nothing about that changes as budgets grow.

02

Efficiency is the product.

Proprietary tools and standardised operations let a small team deliver work that normally requires a large one. In Japan this let us serve advertisers spending a few hundred dollars a month, profitably. You are paying for outcomes, not for overhead.

03

A real bridge between Japan and India.

Our Managing Director, a Japanese Certified Public Accountant, is resident in Mumbai full time. Decisions are made here — not routed through a head office in another time zone.

インド進出をご検討の日系企業様へ

当社は、名古屋に本社を置く株式会社カルテットコミュニケーションズのインド現地法人です。取締役CFOの岩井が現地法人代表としてムンバイに常駐し、進出準備段階の市場調査から、現地でのデジタルマーケティング、DX支援、パートナー企業のご紹介までを一貫してご支援しています。

日本 本社サイト