Nicole Cornish
Nicole Cornish

Subject Matter promotes Nicole Cornish to CEO. Cornish came to the agency in 2017 as president and chief operating officer. She previously held a number of leadership positions, including U.S. chief operating officer at Burson-Marsteller and Direct Impact. John Buckley, who has been the agency’s CDO since 2016, will now serve as senior advisor. “There is no one better prepared or qualified to take the reins of Subject Matter as CEO than Nicole,” said co-founder Paul Frick. “She has helped what once was two founder-led organizations evolve into one integrated firm and design a path for long-term sustainability and success.”

Tiffany Darmetko
Tiffany Darmetko

Inkhouse ups Tiffany Darmetko to executive VP, client services, and interim general manager of the agency’s New York City office. Darmetko has spent the last four years as a senior vice president in the firm’s cyber security practice. She was previously vice president, client services and IT security practice lead at PAN Communications. In her new role, Darmetko will oversee client services agency wide, and continue to evolve Inkhouse’s measurement capabilities. “Her strategic mind places her clients at the epicenter of their markets. Tiffany is grace under pressure, and one of the most thoughtful PR practitioners in the business,” said Inkhouse chief executive officer and founder Beth Monaghan.

Mackenzie Leahy
Mackenzie Leahy

Gatesman elevates Mackenzie Leahy to VP, associate media director. Before coming to Gatesman in 2019, Leahy was senior marketing manager at clothing retailer Akira. She has also been brand media manager at Reebok. As Gatesman’s digital performance and marketing lead, Leahy works with a diverse roster of clients across the higher education, transportation, home and building, grocery and nonprofit sectors. In her new post, she will continue to serve as part of Gatesman’s Emerging Leaders group to identify key areas of opportunity for business generation, team development and cultural initiatives. “In just under two years at Gatesman, Mack’s efficiency, knack for problem-solving and sheer talent have made a lasting impression—not just on the media team, but across the entire agency,” said Gatesman SVP, media director Kathy Oldaker.

Clark Nesselrodt
Clark Nesselrodt

Brilliant PR & Marketing, which serves brands and products marketed to parents, kids and families, promotes Clark Nesselrodt to executive vice president. Nesselrodt has been with the agency since May 2017. Prior to joining Brilliant, he co-founded HyperPower Game Group, a startup that developed branded mobile games. He has also served as a vice president at MSLGroup, vice president, consumer products at Bullfrog + Baum and founder of Caged Bull PR. At Brilliant, Nesselrodt has helped lead the agency’s ongoing development of integrated marketing services with an emphasis on social and digital media, SEO, creative and branding. “Our clients often speak about the ‘magic’ that Clark brings to their strategic conversations and planning,” said Brilliant PR & Marketing president and founder Kathleen Tomes.

Greg Fox
Greg Fox

Moore hires Greg Fox as chief strategy officer, based in the agency’s Washington headquarters. Fox comes to Moore from Merkle, where as vice president, nonprofit vertical strategy, he helped establish the company as a technology-enabled, data-driven strategic fundraising agency. Prior to joining Merkle, he was a founding partner in TheraCom, a provider of full-service specialty pharmacy solutions and marketing strategies. “We are looking forward to putting Greg’s vast experience and knowledge of creating strategic world-class solutions to work on our clients’ complex programs,” said Gretchen Littlefield, chief executive officer at Moore.