Our Vision & Mission
Our Philosophy
Why do we exist? This is the meaning we have placed in “Lasting peace of mind, today and always.”
Lasting peace of mind,
When we dig deep into what business success truly means, we arrive at one word: “freedom.” And what underpins that freedom — what people truly seek — is “peace of mind.” Mattering only today, or only this year, is not enough. Five years from now, ten years from now, twenty years from now. We believe that true value lies in peace of mind that lasts.
A partner who co-creates
a sustainable future with you.
We are not your “teacher.” We aim to be a partner who faces the same direction as you — thinking together, struggling together, and growing together.
Building expertise
of hospitality.
No matter how much knowledge we have, we cannot make truly good proposals unless clients feel free to speak their true feelings. Only when a relationship of trust exists does expertise become real “value.”
Expertise
Tax, accounting, inheritance, business succession, corporate restructuring, and management support. As professionals, we keep learning and evolving.
Hospitality
Listening, understanding, and standing alongside you. Above all, we value building relationships where you feel free to speak openly.
Message
Message
In July 2026, Sustaina Management & Accounting Office and Mate Accounting Office became one, taking a new step forward as Sustaina Mate Tax Corporation.
When you run a company, questions you want to ask come up one after another. Yet all too often, you end up carrying them alone, wondering, “Who could I even ask about something like this?”
What we value most is being the very first place our clients can turn to for advice. Beyond the tax procedures themselves, we want to face even the small anxieties that come before them, seeing things from the same perspective as you.
Beyond the numbers, there is always a person’s daily life and the life still to come. That is why we place not just immediate profit, but lasting “peace of mind” at the center of every judgment. This is the promise embodied in our vision, “Lasting peace of mind, today and always.”
Please come and relax — there is no need to feel tense. Everything begins with hearing what is on your mind. We look forward to a long and lasting relationship with you.
Sustaina Mate Tax Corporation
Co-Representatives Hisamasa Ito ／ Atsushi Nomura
Office Profile
Firm Overview
Senri-Chuo Office: 2F Osaka Monorail Senri-Chuo Building, 1-1-5 Shin-Senri Higashi-machi, Toyonaka 560-0082
Senri-Chuo Office: TEL 06-6832-0315 / FAX 06-6832-0321
Reception: Weekdays 10:00–18:00 (closed weekends and holidays)
Character
Meet Our Mascot
SasutenanSASUTENAN
- Features
- Gently warm and wonderfully stretchy
- Personality
- Doesn’t sweat the small stuff
- Home
- A 20-minute walk from Namba
- Special Skill
- Fortune-telling by char marks
- Weakness
- Runs away at the sight of curry
- Favorite Food
- Bread
Story
A mysterious talking naan, baked to be served at the reception party for Sustaina Mate Tax Corporation. The moment they were handed out to guests, the hall erupted in chaos: “The naan just spoke!?” A frantic recall ensued. To get to the bottom of it, Representative Ito sat down for a long chat with the recovered naan — and discovered they were surprisingly good sports. Since then, they have taken on a part-time gig as the firm’s mascot.
but I’m confident we can
Free Consultation
First, feel freeto reach out.
“Is it okay to ask