Finance outsourcing · M&A advisory · business revival · venture support. Carionaire is a comprehensive business consulting firm committed to walking alongside ambitious leadership at every stage.
About Us
Carionaire — a fusion of Career
and Pioneer — embodies our conviction that
every enterprise deserves an unwavering co-pilot.
From start-ups seeking their footing to established businesses navigating succession or revival,
we cross the boundaries of finance, legal, HR, and M&A to deliver integrated,
high-calibre support — without the overhead of a large in-house team.
Services
From finance and legal to HR, M&A and business revival — a single partner for every function your management needs. The right solution at every stage of growth.
Deliver professional finance capability to growing companies that lack an in-house CFO. Monthly closing, cash-flow management, and management accounting — all covered.
View service details → →From business-plan development to fundraising and investor relations, we stand beside entrepreneurs as they break through every growth barrier.
→One intake window for every professional need. Through our network of attorneys, CPAs, and labour specialists, we connect you with the right expert for every challenge.
→Neutral, end-to-end advisory for both buyers and sellers. Company valuation, negotiation, and closing support — handled with integrity from start to finish.
→Even in crisis, we do not give up. Together with management, we map the path to recovery through financial restructuring, operational reform, and debt resolution.
→Strategy design to execution support. We provide 360° assistance for sustainable growth — unifying organisational, financial, and business dimensions.
→Why Carionaire
Finance, legal, HR, and M&A — all under one roof. No more managing multiple specialist firms. We protect the time and focus of management.
We collaborate with attorneys, CPAs, and labour specialists. For every mandate, we assemble the optimal team — delivering top-tier quality without fixed overhead.
From seed fundraising to IPO preparation, our advice is grounded in hands-on experience at every growth stage — pragmatic, not theoretical.
To be the right arm
of every ambitious enterprise.
Carionaire Co., Ltd. · CEO Ikuya Yamada
Company Info
| Company | Carionaire Co., Ltd. (株式会社キャリオネア) |
| CEO | Ikuya Yamada |
| Capital | ¥23,000,000 |
| Services | Finance Outsourcing / Venture Support / M&A / Business Revival / Comprehensive Consulting |
| Address |
Head Office
Jingumaekorporasu 1201, 6-25-8 Jingumae, Shibuya-ku, Tokyo 150-0001, Japan Shinjuku Branch 1-9-14 Hyakunincho, Shinjuku-ku, Tokyo |
| Tel | |
| Fax | |
| Web | carionaire.co.jp |
Contact
Reach out for an initial consultation — no obligation.
Our team will respond promptly.
Finance, M&A, business revival, venture support —
whatever the challenge, we welcome your enquiry.
Initial consultations are complimentary.
