Exhibit 99.1
MDC PARTNERS INC.
SCHEDULE OF CURRENT AND POTENTIAL MARKETING
COMMUNICATIONS COMPANY OWNERSHIP
| Company | | % Owned at 9/30/09 | | Year of Initial Investment | | Put/Call Options |
| | | | | | | 2009 | | Thereafter |
| | | | | | | (See Notes) |
| Consolidated: | | | | | | | | | | |
| Strategic Marketing Services | | | | | | | | | | |
| Allard Johnson Communications Inc. | | | 75.9 | % | 1992 | | | 88.5 | % | Note 1 |
| Colle & McVoy, LLC | | | 95.0 | % | 1999 | | | — | | Note 2 |
| Crispin Porter & Bogusky, LLC | | | 94.0 | % | 2001 | | | — | | Note 3 |
| Company C Communications LLC | | | 90.0 | % | 2000 | | | — | | Note 4 |
| Fletcher Martin, LLC | | | 85.0 | % | 1999 | | | 100.0 | % | |
| HL Group Partners, LLC | | | 64.9 | % | 2007 | | | — | | Note 5 |
| kirshenbaum bond & partners, LLC | | | 100.0 | % | 2004 | | | — | | |
| Mono Advertising, LLC | | | 49.9 | % | 2004 | | | — | | Note 6 |
| Redscout, LLC | | | 60.0 | % | 2007 | | | — | | Note 7 |
| Skinny NYC, LLC | | | 50.1 | % | 2008 | | | — | | Note 8 |
| Vitro Robertson, LLC | | | 79.8 | % | 2004 | | | — | | Note 9 |
| Zig Inc. | | | 74.1 | % | 2004 | | | 86.1 | % | Note 10 |
| Zyman Group, LLC | | | 94.1 | % | 2005 | | | — | | Note 11 |
| Customer Relationship Management | | | | | | | | | | |
| Accent Marketing Services, LLC | | | 100.0 | % | 1999 | | | — | | |
| TargetCom, LLC | | | 100.0 | % | 2000 | | | — | | Note 12 |
| Specialized Communication Services | | | | | | | | | | |
| Accumark Communications Inc. | | | 55.0 | % | 1993 | | | — | | Note 13 |
| Bruce Mau Design Inc. | | | 50.1 | % | 2004 | | | — | | |
| Bryan Mills Iradesso Inc. | | | 62.8 | % | 1989 | | | 88.2 | % | Note 14 |
| Computer Composition of Canada Inc. | | | 100.0 | % | 1988 | | | — | | |
| Hello Design, LLC | | | 51.0 | % | 2004 | | | — | | |
| henderson bas partnership | | | 65.0 | % | 2004 | | | 100.0 | % | |
| Northstar Holdings Canada Inc. | | | 72.4 | % | 1998 | | | — | | Note 15 |
| Onbrand | | | 89.0 | % | 1992 | | | — | | Note 16 |
| Source Marketing, LLC | | | 83.0 | % | 1998 | | | — | | Note 17 |
| Veritas Communications Inc. | | | 64.1 | % | 1993 | | | 78.4 | % | Note 18 |
| Yamamoto Moss Mackenzie | | | 100.0 | % | 2000 | | | — | | |
| Equity Accounted: | | | | | | | | | | |
| Adrenalina, LLC | | | 49.9 | % | 2007 | | | — | | Note 19 |
Notes
| (1) | MDC has the right to increase its ownership interest in Allard Johnson Communications Inc. through acquisition of an incremental interest, and the other holders have the right to put to MDC the same incremental interest up to 89% of this entity in 2009 and 100% only upon termination. |
| (2) | MDC has the right to increase its economic ownership in Colle & McVoy, LLC through acquisition of an incremental interest, and the other interest holder has the right to put to MDC the same incremental interest, up to 100% of this entity in 2012. |
| (3) | MDC acquired the remaining 6% equity interest in Crispin Porter & Bogusky, LLC (“CPB”) on October 5, 2009, and currently owns 100% of the equity interests in CPB. |
| (4) | MDC has the right to increase its economic ownership in Company C Communications, LLC through acquisition of an incremental interest, and the other interest holder has the right to put to MDC the same incremental interest, up to 100% of this entity in 2012. Effective October 1, 2008, Company C is operated as a division of KBP. |
| (5) | MDC has the right to increase its ownership in HL Group Partners, LLC through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests, up to 72.41% of this entity in 2012, up to 82.62% in 2013 and up to 93.73% in 2014. |
| (6) | MDC has the right to increase its ownership in Mono Advertising, LLC through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests, up to 54.9% of this entity in 2010, up to 60.0% in 2011, up to 65.0% in 2012, up to 70.0% in 2013 and up to 75.0% in 2014. |
| (7) | MDC has the right to increase its ownership in Redscout, LLC through acquisition of an incremental interest, and the other interest holder has the right to put to MDC the same incremental interest, up to 80% of this entity in 2012. |
| (8) | MDC has the right to increase its ownership in Skinny NYC, LLC through acquisition of incremental interests, and the other interest holders have the right to put to MDC the same incremental interest, up to 60.1% of this entity in 2014, up to 70.1% of this entity in 2015 and up to 80.1% of this entity in 2016. |
| (9) | MDC has the right to increase its ownership in Vitro Robertson, LLC through acquisition of an incremental interest, and the other interest holder has the right to put to MDC the same incremental interest, up to 95% of this entity in 2011, up to 97.5% in 2012 and up to 100% in 2013. |
| (10) | MDC has the right to increase its ownership in Zig Inc. through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interest, up to 88.4% of this entity in 2010, and up to 90.45% of this entity in 2012. Effective July 1, 2008, ACLC was merged into Zig. |
| (11) | As of December 31, 2008, MDC’s economic interest in Zyman Group, LLC was 100% of profits as its priority return is not expected to be exceeded. In January 2009, MDC called 32% of incremental equity interests in exchange for a contractual formula purchase price equal to $0. Effective with this additional equity purchase Zyman Group, LLC has become an operating division of kirshenbaum bond & partners, LLC. |
| (12) | Effective January 1, 2009, TargetCom, LLC is operating as a division of Accent Marketing Services, LLC. |
| (13) | MDC, has the right to increase its ownership in Accumark Communications Inc. through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests up to 61.7% of this entity in 2010, up to 68.3% in 2011 and up to 75.0% in 2012. MDC’s current economic interest is 42%. |
| (14) | MDC has the right to increase its ownership in Bryan Mills Iradesso, Inc. through acquisition of an incremental interest, and the other interest holders have the right to put to MDC the same incremental interest, up to 100% of this entity in 2012. |
| (15) | MDC has the right to increase its ownership in Northstar Research Holdings Canada Inc. through acquisitions of incremental interests, and the other holders have the right to put to MDC the same incremental interests up to 100% only upon termination. |
| (16) | MDC has the right to increase its ownership in Onbrand through acquisitions of incremental interests, and the other holders have the right to put to MDC the same incremental interests up to 100% only upon termination. |
| (17) | MDC has the right to increase its ownership in Source Marketing, LLC through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests up 87.1% of this entity in 2011 and 91.3% in 2012 and 100% in 2013. |
| (18) | MDC has the right to increase its ownership in Veritas Communications Inc. through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests, up to 78.4% of this in 2010, up to 81.5% in 2011, up to 95.1% in 2012 and up to 100% in 2013. |
| (19) | MDC has the right to increase its ownership in Adrenalina, LLC through acquisitions of incremental interests, and the other interest holders have the right to put to MDC the same incremental interests, up to 61% of this entity in 2013, up to 72% in 2014 and up to 82% in 2015. |
