Welcome to CDM Smith.

1940s — With the formation of the partnership, the firm grows a local client base, designing important water infra­struc­ture projects throughout New England.

In 1949, the firm expanded beyond New England and wins a pollution abatement report project on the Clarion River in Penn­syl­va­nia. 

 1950s – Using new, in­no­v­a­tive tech­nol­ogy to de­liver ex­cel­lent re­sults, CDM’s rep­u­ta­tion ex­pands be­yond New Eng­land.

In 1959, we de­signed the first dual-media, multiple-tray water treatment plant estab­lish­ing the firm as a water-treatment innovator and leader.

 1960s – We win our first inter­na­tional contract in Colombia, taking the firm outside of the United States.

In 1965, the firm became the public health engineering consultant for East Pakistan, now Bangladesh, es­tab­lish­ing the firm in the inter­na­tional arena.

 1970s – In 1973, The En­vi­ron­men­tal Pro­tec­tion Agency (EPA) re­tained the firm to prepare the coun­try’s first compre­hen­sive guidelines and subsequent updates for design, construc­tion and operation of U.S. water pollution control facilities.

Over the next few years, we made sev­eral ac­qui­si­tions that ex­panded our foot­print in New York and Florida.

1980s – The Com­pre­hen­sive En­vi­ron­men­tal Re­sponse, Com­pen­sa­tion, and Li­a­bil­ity Act – com­monly known as Su­per­fund – cre­ated a trust fund through a tax on the chem­i­cal and pe­tro­leum in­dus­tries and es­tab­lished a fed­eral au­thor­ity for the cleanup of haz­ardous waste sites.

In 1985, CDM Fed­eral Pro­grams Cor­po­ra­tion was cre­ated to work with the EPA and other fed­eral agen­cies.

1990s – We com­pleted sev­eral ac­qui­si­tions that ex­tended our ser­vices in the west and in Ger­many.

In 1999, we com­menced the largest sin­gle-sea­son as­bestos screen­ing study in the U.S., help­ing the EPA re­store a 180-square-mile com­mu­nity pol­luted with as­bestos in Libby, Mon­tana.

2000s – In 2005, the firm responded to Hurricane Katrina by assessing damage to wastewater treatment plants, collection and distri­b­u­tion systems, and aiding in recovery and protection against future natural disasters.

In 2009, fol­low­ing the dev­as­tat­ing earth­quake in Pak­istan, the firm provided design-build ser­vices for 61 earth­quake-re­sis­tant schools, 16 health cen­ters and seven uni­ver­sity im­prove­ments.

 2010s – In 2011, the firm provided design-build services for a sustainable LEED-Gold facility that sup­ports more than 2,000 Dept. of De­fense per­son­nel at An­drews Air Force Base in Mary­land.

In 2011, CDM and Wilbur Smith As­so­ci­ates - a suc­cess­ful trans­porta­tion and in­fra­struc­ture firm in South Car­olina - joined forces to be­come CDM Smith, a lead­ing global con­sult­ing, en­gi­neer­ing, con­struc­tion, and op­er­a­tions firm of more than 5,000 profes­sion­als delivering integrated so­lu­tions in water, en­vi­ron­ment, trans­porta­tion, en­ergy and fa­cil­i­ties.

2020s – In 2021, CDM Smith acquired Milestone Solutions, a North America-based firm and global leader in road usage charging and pricing, reinforcing CDM Smith’s standing as the premier orga­ni­za­tion for revenue policy development, partic­u­larly as it relates to helping federal, state, and local agencies establish new, sustainable trans­porta­tion revenues and systems.