🎉 HPC Announces Strategic Acquisition of SEI — Expanding Our Bridge Engineering Capabilities

Learn More
Both HPC & SEI
DBE/MBE Certified
30+
Team Members
3
Office Locations
10+
States Certified

Our Services

Comprehensive engineering and consulting solutions for transportation, infrastructure, and development projects.

Ready to Start Your Next Project?

Contact us today to discuss how our expanded capabilities can serve your engineering needs.

Contact

Serving Greater Philadelphia and the Northeast Corridor

Main Office — Center City

1628 JFK Blvd, Philadelphia, PA 19103
(215) 560-0876
inquiry@hnjengineers.com

Specialty Engineering Headquarters

422 Mill Street, Bristol, PA 19007
Tel: 215-785-5350

Blue Bell Office

1777 Sentry Parkway West
VEVA 12, Suite 203
Blue Bell, PA 19422
Tel: 215-785-5350

Knowledge-Based Engineers & Management Consultants

H & J International, PC
8 Penn Center, 1628 JFK Blvd
Ste 401
Philadelphia, PA 19103
Email: inquiry@hnjengineers.com
Phone: 215-560-8176
Fax: 215-940-9851

© 2025 H & J International, PC. All rights reserved.