About Us
Laying firm foundations.
Have values, to add value
The Firm holds fast to the following core values and strives to embody them in all its undertakings.
We are firmly committed to striving for excellence, professionalism and leadership in every task we perform for the businesses that we are privileged to serve.
Sound solutions for sustainability.
As a Firm, our Mission is to provide trustworthy solutions that drive healthy and sustainable business growth, with the Vision of becoming the leader in providing businesses with financially and economically sound public accountancy solutions.
To lead is to serve: The MAC Management Team
Mark Jefferson Mariano
Managing Partner
Jeff has specialized in external audits, financial and transactional advisory services, project accounting, and financial planning and analysis since 2008.
He was a senior auditor with Sison Corillo Parone & Co. (SCP) for almost 4 years, working with businesses in various industries including logistics, construction, real estate, architectural consultancy, manufacturing and distribution, telecommunications, advertising, healthcare, pharmaceuticals, casino, manpower, hearing aids distribution, social media marketing, aviation, and computer systems.
Jeff obtained his Bachelor’s degree in Accountancy from the Philippine School of Business Administration (PSBA) and is a Certified Public Accountant.m.
Thelma B. Abueme-Gracia
Partner, Tax Services
Thelma was a senior tax associate of the Tax Consulting Group at SCP. She specializes in cases at the Bureau of Internal Revenue which include protests, refunds and requests for rulings. Her clients include companies in mining, automotive sales, information technology, construction, real estate, manpower, manufacturing and trading.
Thelma graduated with a Bachelor in Accountancy from St. Louis University in 2007. She is a Certified Public Accountant.
Warren Dy
Partner, Advisory Services
Warren has been an audit associate and, business process outsourcing head at SCP, as well as a a finance officer, general accountant and senior accountant for Philippine and Emirati companies in tourism, industrial equipment, and building regulatory and engineering. His experience involves general accounting, financial statement reporting, audit, taxation and payroll services. He is also proficient in cloud accounting software such as Peachtree and QuickBooks.
Warren graduated magna cum laude from the Masters Technological Institute of Mindanao in 2007. He is a Certified Public Accountant, US Certified Management Accountant (CMA), Certified Internal Control Auditor (CICA), Public Accountant (Australia) and Financial Accountant (UK), and has passed the Officer-in-Charge and civil service professional licensing examinations in the Philippines.
Honey Rose Ann G. Barretto-Mariano
Partner, Accounting Services
Honey has over 10 years of experience as internal auditor and tax consultant in the healthcare industry. She is a former quality control associate of the Internal Audit Division of SCP, where she also handled various engagements in industries such as manpower agency, not-for-profit organizations, automotive, aviation, manufacturing and distribution, cold storage, pharmaceuticals, and printing.
Honey graduated cum laude from the Polytechnic University of the Philippines in 2008 with a degree of Bachelor in Accountancy. She is a Certified Public Accountant.