Creating Enduring Value & Trust Since 1984

Over four decades of rich experience providing comprehensive professional solutions across domestic and international markets.

Get in Touch

About The Firm

42+

Years of Excellence
ESTABLISHED IN 1984

Building Trust Through Professional Excellence

Iyer Thomas & Sunney (ITS) is a leading Chartered Accountancy firm delivering Audit, Taxation, Advisory, Corporate Finance, and Compliance solutions for businesses and individuals across India and international markets.

For over four decades, we have built long-lasting client relationships by delivering practical business solutions, maintaining the highest ethical standards, and providing strategic financial guidance that drives sustainable growth.

✔ 42+ Years of Professional Excellence
✔ Audit & Assurance Services
✔ Taxation & Regulatory Compliance
✔ Corporate Finance & Advisory
✔ Domestic & International Expertise
✔ Client-Centric Professional Support
Schedule a Consultation
42+

Years of Excellence

Delivering trusted audit, taxation, and advisory services since 1984.

28+

Corporate Engagements

Serving diversified business groups across multiple industries.

100%

Professional Integrity

Committed to ethics, transparency, and regulatory compliance.

Global

Business Advisory

Supporting domestic and international business operations.

OUR PROFESSIONAL EXPERTISE

Comprehensive Financial & Advisory Solutions

Delivering integrated audit, taxation, advisory, compliance and financial consulting services for businesses, institutions and individuals.

01

Audit & Assurance

Independent audit services ensuring financial transparency, regulatory compliance and business confidence.

  • Statutory Audits
  • Internal Audits
  • Bank Audits
  • Tax Audits
  • Due Diligence
02

Taxation Services

Strategic domestic and international tax advisory with complete regulatory compliance.

  • Income Tax
  • GST Advisory
  • Transfer Pricing
  • Tax Litigation
  • International Taxation
03

Corporate Advisory

Helping organizations achieve sustainable growth through strategic financial planning and business advisory.

  • Business Consultancy
  • Fund Raising
  • Virtual CFO
  • Risk Management
  • Business Restructuring
  • Investment Advisory
04

Accounting & Compliance

Reliable accounting, payroll and statutory compliance solutions for growing businesses.

  • Bookkeeping
  • Payroll Processing
  • ROC Compliance
  • Financial Reporting
  • Accounting Outsourcing

Industry Expertise

We have been delivering comprehensive business solutions across a wide range of regulated and high-growth sectors:

Manufacturing Trading & Retail Software Development Educational Institutions Charitable & Religious Institutions Healthcare Hospitality & Tourism Banking & Financial Services

Specialized Domain Expertise

Equipped with specialized capabilities to fully support clients operating in regulated environments including EHTP (Electronics Hardware Technology Park), SEZ (Special Economic Zones), and STP (Software Technology Parks).

Leadership Team

Meet Our Partners

Experienced Chartered Accountants delivering strategic financial, audit, taxation, and advisory services with integrity and excellence.

SS

CA. Sunney Sebastian, B.Com, FCA

Founder Partner

In professional practice since 1984, with over four decades of rich experience, he is the Founder and Senior Partner of Iyer Thomas & Sunney. An alumnus of Deloitte Haskins & Sells, he has been instrumental in the firm's growth and continues to lead client relationships, strategic advisory and overall practice management. He has served as a Virtual Vice President (Finance) for a diversified business group for over 40 years, overseeing the financial management of multiple companies. His areas of expertise include Virtual CFO services, SEZ, STPI and EOU advisory, project financing, direct taxation, financial and business advisory, company incorporation, corporate restructuring, strike-off and winding-up engagements.

CT

CA. Catherine Theresa Sunney, B.Com, FCA

Partner

A Chartered Accountant since 2013, she completed her articleship with KPMG, gaining specialised experience in statutory audits of corporate entities. She joined Iyer Thomas & Sunney as a Partner in November 2013 and currently leads statutory audits, tax audits and assurance engagements for corporate and non-corporate entities. Over the years, she has developed extensive experience in direct and indirect taxation, financial reporting, regulatory compliance, internal controls, company incorporation, business structuring, corporate compliance, and management consultancy. She also plays a key role in client relationship management, practice development, team building, and the firm's transformation into an advisory-led professional services practice.

JG

CA. Jude George Manavalan, B.Com, ACA

Partner

Qualified as a Chartered Accountant in 2024, he began his career with PwC Acceleration Center in the Asset & Wealth Management sector, contributing to audit and assurance engagements for US-based clients. He later served as Assistant Manager – Finance at Aster DM Healthcare Ltd., gaining valuable experience in internal financial controls (IFC), internal audits and statutory audit support. As a Partner at Iyer Thomas & Sunney, he combines strong professional training with industry experience to deliver practical, value-driven solutions across audit, taxation, accounting, regulatory compliance and business advisory. He has a keen interest in supporting startups and growing businesses with financial structuring, compliance and strategic advisory for sustainable growth.

CONTACT US

Let's Discuss Your Business Needs

Connect with our experienced Chartered Accountants for audit, taxation, GST, company registration and financial advisory services.

Get In Touch

Office Address

14/664, Reccaa Valley Road
Mavelipuram, Kakkanad
Kochi, Kerala - 682030

Office Phone

+91 484 4032789

WhatsApp

+91 9249034728

Email

mail@caits.in

Request a Consultation