Kleinfelder
About
Kleinfelder is an engineering, science and construction services firm with an office in Boston, part of a national practice that has been operating since 1961. Its engineers, scientists and construction professionals work on transportation, water, energy and other infrastructure for public and private clients. Services include design, construction management, program management, construction materials engineering and testing, and environmental work, from stream restoration and floodplain reconnection to abandoned mine drainage treatment.
The company describes an ecosystem mindset, collaborating with partners to deliver solutions across five core services and four major markets. Recent work includes a statewide railroad asset inventory and construction management platform, a mining impacts remediation program in Schuylkill County, and design engineering and funding help for a community and evacuation center. Kleinfelder ranks consistently in Engineering News-Record’s industry lists, including the Top 50 construction management firms and the Top 500 design firms.
What to Know
- Forbes named Kleinfelder among its 2026 Top 175 employers for engineers in North America, based heavily on employee feedback.
- ENR also ranks it #26 among Top 100 Professional Services Firms and #76 among Top 200 Environmental Firms.
- The firm publishes guidance on climate risks, such as preparing projects for a strong El Niño.
- Kleinfelder highlights its health and safety culture and corporate social responsibility work.
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