Neustar, provider of real-time data analytics, authentication, and directory services to the global communications marketplace. Hired to implement local HR services for DC-based company, MarketShare. Develop and manage Corporate initiatives; HR Communications, Diversity and Inclusion, Policies & Procedures development, and labor compliance/research.

Phenomenon, an advertising/innovation agency responsible for Strategy, Branding, Web Design, App Development, and Social Media projects. Clients include Pepsi, Wilson Sports, Aetna, J Crew. Provide all Employee Relations, Performance Management, and Organizational Development support for 120 full-time employees, 20-40 contract/temporary employees. Responsible for the execution and development of all HR/Culture and Facilities functions. Conducted HR Audit, established paperless employee records protocol, and destruction schedule for all employee records.

Freelance Human Resources Consulting specializing in short term assignments with tech and media companies. Provided support in the following areas; Wage & Hour/ACA Benefit Compliance Assessment, Benefits plan design and implementation, Employee Relations management, Staffing.

Responsible for the creation and management of the first Human Resources and Facilities/Office Management-related functions for Rubicon Project. Replaced external HR function (Trinet PEO) to an internal People & Culture function including the creation of succession planning growth initiatives, employee engagement metrics, revamped Policies & Procedures, and a robust compensation and benefits platform. Hired People & Culture staff to support newly created function and employee services. Introduced market-based compensation/incentive standards and practices. Maintained 5% turnover during tenure in extremely competitive tech marketplace. Achieved growth initiatives by building recruitment platform. Facilitated the opening of Manhattan and San Francisco office locations with seating for 30+ employees at each location. Directly oversaw property selection, lease negotiations, design, and construction.

Oversaw all traditional Human Resources functions (Employment, Employee Relations, OD, Compensation, Benefits) for approximately 200 employees in the Entertainment Division at Reed Business Information based in Los Angeles. Reed Business is the largest business-to-business publisher in the U.S., offering B to B information in the media, manufacturing, electronics, construction and retail industries more than 80 market-leading business-to-business publications, 55 Webzines and Web portals, custom publishing, directories, research and direct-marketing lists. Among RBI's most notable publications are, Daily and Weekly Variety, Interior Design, Broadcast & Cable, Publishers Weekly and EDN. Mark reports directly to the President of Variety and is a member of the Variety Executive Management Team.

Michael Ovitz owned internet start-up. The predecessor to file-sharing pioneer Napster

Sub-prime mortgage banking company sold to Washington Mutual. Designed and implemented a nationwide staffing plan to hire 500 Account Executives in a 12 month period.

Served as first corporate head of Human Resources pre and post IPO. Built a ground-up HR function supporting corporate LA-based office and 12 call centers nationally.

Oversaw HR support for Columbia Pictures Television and Sony Pictures Studio backlot facilities.