From Business: Hiser Engineering, Inc. is a civil engineering firm founded in 1993 with over 70 years of combined employee experience. Our office is located 30 minutes north of Pittsburgh in…

32 Years

in Business

5. TH Portajohn

814-371-7705Call Now

Directions

Civil Engineers

Rr 1, Falls Creek, PA 15840

6. HD Engineering, Inc.

814-441-1850Call Now Visit Website

Directions

Civil Engineers Oil & Gas Exploration & Development Petroleum Engineers

112 S Main St, Du Bois, PA 15801

CLOSED NOW:7:30 am - 6:00 pm

12 Years

in Business

7. Lee-Simpson Associates Inc

814-371-7750Call Now Visit Website

Directions

Civil Engineers Consulting Engineers Business Coaches & Consultants

203 W Weber Ave, Du Bois, PA 15801

8. GAI Consultants

814-371-7750Call Now Visit Website

Directions

Civil Engineers Consulting Engineers

203 W Weber Ave, Du Bois, PA 15801

From Business: Established in 1918, Lee-Simpson Associates provides a range of civil, environmental and electrical engineering services. The company maintains a more than 11,500-square-foot…