diff --git a/conf/distro/include/phosphor-defaults.inc b/conf/distro/include/phosphor-defaults.inc
index 3cff3f6..601275e 100644
--- a/conf/distro/include/phosphor-defaults.inc
+++ b/conf/distro/include/phosphor-defaults.inc
@@ -9,3 +9,11 @@
 OBMC_FAN_INSTANCES ?= ""
 
 PREFERRED_PROVIDER_virtual/obmc-wsgihost ?= "phosphor-gevent"
+PREFERRED_PROVIDER_virtual/obmc-event-mgmt ?= "obmc-phosphor-event"
+PREFERRED_PROVIDER_virtual/obmc-user-mgmt ?= "obmc-phosphor-user"
+PREFERRED_PROVIDER_virtual/obmc-host-ipmi-hw ?= "host-ipmi-hw-example"
+PREFERRED_PROVIDER_virtual/obmc-chassis-mgmt ?= "obmc-phosphor-chassisd"
+PREFERRED_PROVIDER_virtual/obmc-fan-mgmt ?= "obmc-phosphor-fand"
+PREFERRED_PROVIDER_virtual/obmc-flash-mgmt ?= "obmc-phosphor-flashd"
+PREFERRED_PROVIDER_virtual/obmc-sensor-mgmt ?= "obmc-phosphor-sensord"
+PREFERRED_PROVIDER_virtual/obmc-system-mgmt ?= "obmc-phosphor-sysd"