About Us
E.H. SISON Engineers, Co.
is a professional partnership consultancy firm registered with the Security Exchange Commission (SEC) engaged in multi-disciplinary technical services.
It was established in 1989 as E.H. Sison and Associates, converted to partnership as E.H. Sison Associates, Co. in 1992, and amended to E.H. SISON Engineers, Co., in 1993 to emphasize the nature of services it offers. The firm’s initial activity involved in the design and supervision of the construction of numerous industrial and commercial projects in the country. The firm is also registered under the Professional Regulation Commission’s (PRC) Board of Civil Engineering with certificate of registration number 11-003 to practice Civil Engineering in accordance with the requirements prescribed by Section 24 Article 5 of RA544 “Civil Engineering Law”.
Today, the company is one of the leading Filipino consultancy firms based in Makati City, Philippines which has grown steadily both in terms of staff and expertise. It has drawn its strength from the experience of more than three (3) decades of consultancy services in industrial, commercial, and institutional projects including infrastructure both in the government and private sectors.
Our Core Values
Meet Our Team
THE PARTNERS

EFREN H. SISON
MCE, F.PICE, F.ASEP, F.SPAC, ISSEP,
APEC, ASEAN, FACPE, GREEEN ADP+AA
Engr. Efren H. Sison is the Managing Partner of E.H. SISON Engineers, Co. He also acts as a:
- Sr. Structural/Bridge Engineer
- Sr. Highway/Pavement Engineer
- Sr. Water Resources Engineer
- Project Manager

ROBERTO H. CABRERA
MCM, M.PICE
Engr. Roberto H. Cabrera is a Partner of E.H. SISON Engineers, Co. He plays a big role in Construction Management and also acts as a:
- Sr. Quantity/Cost/Specifications Engineer

FREDERICK FRANCIS M. SISON
MSCE, F.PICE, F.ASEP, ISSEP, FACPE, GREEEN ADP+AA
Engr. Frederick Francis M. Sison is a Partner of E.H. Sison Engineers, Co. He also acts as a:
- Sr. Structural/Bridge Engineer
- Sr. Geotechnical Engineer
- Sr. Highway/Pavement Engineer
- Contract Specialist
- Disaster Risk Reduction Management Specialist
- Project Manager
SR. ASSOCIATE ENGINEERS

FATIMA JOY CAMARTIN
Engr. Fatima Joy Camartin is a Civil/ Structural Engineer of E.H. SISON Engineers, Co. She also acts as a:
- Highway Engineer
- Water Resources Engineer

JAYVEE S. SANCHEZ
Engr. Jayvee Sanchez is a Civil/ Structural Engineer of E.H. Sison Engineers, Co. He also acts as a:
- Quantity/ Cost/ Specifications Engineer
ADMINISTRATIVE AND FINANCE

NORA M. SISON
Ms. Nora M. Sison is the Chief of the Administrative and Finance department of E.H. SISON Engineers, Co.

JENNIFER ROSLYN S. DE LEON
Ms. Jennifer S. De Leon is the Administrative Manager of E.H. SISON Engineers, Co.

CHARLENE M. BIENES
Ms. Charlene M. Bienes is the Deputy Administrative and Finance Manager of E.H. Sison Engineers, Co.