CALX international was formed with an to provide quality services to its clients and become long-term business partners in their growth. CALX offers Auditing, Tax Agency, Accounting and a host of financial services CALX international was formed with an to provide quality services to its clients and become long-term business partners in their growth. CALX offers Auditing, Tax Agency, Accounting and a host of financial services under one roof. As approved auditors from Ministry of Finance, approved Tax Agents from the Federal Tax Authority and with a team of accounting experts we endeavour to be a one-stop solution for our clients. We at CALX believe that your financials are more than just numbers; they are your operations quantified. We believe that understanding them is of paramount importance in order to form a comprehensive guide to your business and ensure its progress. Get in touch now and let us handle the complicated and tedious side of running your business.one roof. As approved auditors from Ministry of Finance, approved Tax Agents from the Federal Tax Authority and with a team of accounting experts we endeavour to be a one-stop solution for our clients. We at CALX believe that your financials are more than just numbers; they are your operations quantified. We believe that understanding them is of paramount importance in order to form a comprehensive guide to your business and ensure its progress. Get in touch now and let us handle the complicated and tedious side of running your business.