Appian Corporationhttps://pcaobus.org/form-ap-filings/7493/7493Appian Corporation74935/5/2017 2:16:20 PM2016deb0eb1f-a5fe-46fc-b240-f88dcdc02f7b243BDO USA, LLP430638Appian Corporation1441683APPN; 8132B0024311604Anthony Joseph Ricciardella0024311604True
GSE Systems, Inc.https://pcaobus.org/form-ap-filings/4698/4698GSE Systems, Inc.46983/30/2017 7:02:20 PM2016a2efa7f3-aa1a-47a5-81be-129060b3360b243BDO USA, LLP64698GSE Systems, Inc.944480GVP0024311604Anthony Joseph Ricciardella0024311604True