▁chair ▁Joe ▁Andrew ). ▁ ▁Pol ling ▁ ▁Results ▁ ▁Notes ▁ ▁References ▁ ▁External ▁links ▁The ▁Green ▁Pap ers ▁delegate ▁allocation ▁summary ▁Maryland ▁Democratic ▁Party ▁delegate ▁selection ▁plan ▁ ▁Maryland ▁Democratic ▁Democratic ▁primary ▁ 2 0 2 0 ▁Maryland ▁Democratic <0x0A> </s> ▁D PR ▁Const ruction ▁is ▁a ▁commercial ▁general ▁contract or ▁and ▁construction ▁management ▁firm ▁based ▁in ▁Red wood ▁City , ▁California . ▁The ▁priv ately - h eld , ▁employee - owned ▁company ▁has ▁ 2 8 ▁offices ▁throughout ▁the ▁United ▁States ▁and ▁special izes ▁in ▁techn ically ▁complex ▁and ▁sust ain able ▁projects ▁for ▁the ▁advanced ▁technology / mission ▁critical , ▁life ▁sciences , ▁health care , ▁higher ▁education ▁and ▁commercial ▁office ▁mark ets . ▁ ▁International ▁offices ▁are ▁located ▁in ▁Europe ▁and ▁Asia . ▁ ▁The ▁company ▁has ▁ranked ▁among ▁the ▁top ▁ 5 0 ▁general ▁contract ors ▁in ▁the ▁United ▁States ▁by ▁Engineering ▁News - Record ▁( EN R ) ▁since ▁ 1 9 9 7 . ▁Its ▁overall ▁ 2 0 1 9 ▁ranking ▁was ▁No . ▁ 1 0 ▁in ▁the ▁nation . ▁By ▁market ▁sector , ▁D PR ▁also ▁ranked ▁# 4 ▁in ▁tele communic ations , ▁# 3 ▁in ▁industrial , ▁# 1 0 ▁in ▁domestic ▁building / man ufact uring ▁and ▁# 1 1 ▁in ▁new ▁contract s ▁in ▁Engineering ▁News - Record ▁in ▁ 2 0 1 9 . ▁ ▁History ▁▁ ▁In ▁July ▁ 1 9 9 0 , ▁D PR ▁Const ruction ▁was ▁co - f ounded ▁in ▁Red