Mission Statement

Letterle is a professionally managed family oriented environmental consulting company that will continuously strive to exceed expectations and nurture long-term relationships with its stakeholders including:

  • Our Clients - we will provide cost-effective, innovative solutions to our clients’ environmental problems and tirelessly work to earn and maintain their trust and respect.
  • Our Employees - we will create a safe and stable work environment with challenging career growth and will provide positive recognition for exceptional service.
  • Our Community – we will remain active and responsible members of the communities in which we work and live.
  • Our Founders – we will continue to capitalize on opportunities to expand and diversify as we hire new employees, develop new services and expand our geographic reach.
Main Office
2859 Oxford Boulevard
Allison Park, PA 15101
Phone: 412-486-0600
Fax: 412-486-0674
Email: tjennewine@letterleassociates.com
Franklin Office
191 Howard Street, Suite 108
Franklin, PA 16323
Phone: 814-432-2167
Fax: 814-432-2632
Email: tkier@letterleassociates.com
Bellefonte Office
629 East Rolling Ridge Drive
Bellefonte, PA 16823
Phone: (814) 355-2241
Fax: (814) 355-2410
Email: streschow@letterleassociates.com