<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>BRINKS CO</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>109696104</cusip>
			<value>14808</value>
			<shrsOrPrnAmt>
				<sshPrnamt>358974</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2,3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>358974</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>BROADSOFT INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>11133B409</cusip>
			<value>33000</value>
			<shrsOrPrnAmt>
				<sshPrnamt>800000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2,3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>800000</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>GP STRATEGIES CORP</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>36225V104</cusip>
			<value>104086</value>
			<shrsOrPrnAmt>
				<sshPrnamt>3639367</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2,3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>3639367</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>PROS HOLDINGS INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>74346Y103</cusip>
			<value>23093</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1073093</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2,3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>1073093</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TANGOE INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>87582Y108</cusip>
			<value>9857</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1250865</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2,3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>1250865</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
