Name

Jurisdiction

1.

Marchex Paymaster, LLC

Delaware

2.

Marchex, LLC

Delaware

3.

Marchex Sales, LLC

Delaware

4.

Marchex CAH, Inc.

Delaware

5.

Telmetrics Corporation (formerly, Telmetrics Inc.)

Nova Scotia

6.

Marchex International, Ltd.

Ireland

7.

Archonic, LLC

Delaware

8.

Callcap, LLC (formerly, SITA Laboratories, Inc.)

Delaware

9.

DCCI Support Service, Inc.

Delaware

10.

Sonar Technologies, Inc.

Delaware