STEFANIE G. ROUMELIOTES, Founder and CEO of SGR Consulting, is a senior strategist, high-caliber fundraiser, and seasoned political operative. A native to the San Francisco Bay Area, Stefanie has parlayed her passion for supporting political candidates and causes, and enhancing the welfare of others into a highly productive career as a business development strategist. Recognized nationally as a leader in her field, Stefanie prides herself on the ability to facilitate and build meaningful relationships, and has established an admirable reputation for handling each enterprise she manages with expertise and success.

Stefanie founded her firm, SGR Consulting, in San Francisco in 2004 to provide strategic fundraising and development services to political campaigns and non-profit organizations. As CEO, Stefanie has led SGR Consulting to the forefront of the field through her expertise in identifying new opportunities and navigating partnerships through solution-driven communications strategy and engagement at the intersection of public, private, and non-profit sectors. 

Under Stefanie's leadership, SGR Consulting has raised nearly two billion dollars for its numerous clients, which have included US President Joe Biden, US Vice President Kamala Harris, US Secretary of State Hillary Clinton, California Governor Gavin Newsom, California Attorney General Rob Bonta, California Lieutenant Governor Eleni Kounalakis, California Assemblymember Catherine Stefanie, US Senator Dianne Feinstein, US Senator Alex Padilla, US Representative Lateefah Simon, San Francisco Mayor Ed Lee, and San Francisco District Attorney Brooke Jenkins.

Stefanie most recently served as the National Senior Advisor on Technology and Business Development for the Harris Walz 2024 Presidential Campaign.

Over the last decade, SGR Consulting has played an integral role in the success of many civic and CA state-wide bonds and initiatives that have unlocked millions of dollars in government funding that has benefited the community at large. Her portfolio includes, but is not limited to, the Democratic Senatorial Campaign Committee (DSCC), Democratic Governors Association (DGA), United Nations Foundation, William Jefferson Clinton Foundation, the Foundation for AIDS Research (amfAR), FWD.us, Futures Without Violence, and the California Democratic Party. 

In 2010, Stefanie was appointed by CA Governor Gavin Newsom to be a San Francisco City and County Commissioner for the Golden Gate Park Concourse Authority. In 2017, she was appointed by the late San Francisco Mayor Edwin Lee as Chair of the San Francisco-Thessaloniki Sister City Association and served until 2023.

Stefanie was the 2021 Success Honoree of Dress for Success, an organization that helps women achieve economic independence by providing a network of support, professional attire, and development tools that help women thrive. Stefanie remains deeply committed to empowering women in the professional world.

Stefanie is a UCLA graduate and a proud Greek-American. She is married to Dr. John Costouros and is a devoted mother to her ten-year-old twins.

Contact Stefanie at Stefanie@sgrconsultants.com or 415 402 0303.

Marisa is a fifth generation San Franciscan with experience in political communications, strategic planning, and campaign management.

Marisa has worked for a wide range of elected leaders in Washington D.C. and California, including Vice President Kamala Harris, Senator Alex Padilla, Congresswoman Anna Eshoo, Congresswoman Jackie Speier, and Mayor London Breed.

In 2018, Marisa joined a Congressional campaign as a field organizer in rural Virginia for Democratic nominee Vangie Williams. There she managed a large network of volunteers and organized and led campaign events.

Post-midterm election, Marisa began working in the United States Senate. For three years, she worked for then-Senator Kamala Harris and Senator Alex Padilla. Marisa started off as a Staff Assistant and worked her way up to Deputy Press Secretary over the course of her time in the Senate. In both offices, Marisa led the communications teams in writing press releases, managing social media accounts, and pitching reporters on various letters and legislation. She did all this during pivotal moments in our country’s history, including impeachment, Supreme Court nomination hearings, the COVID-19 pandemic, and police reform protests.

In August 2021, Marisa moved back home to San Francisco for graduate school. While in school, Marisa worked on various local San Francisco campaigns and initiatives before joining SGR Consulting.

Marisa received her bachelor’s in Political Science and History from Loyola Marymount University and her master’s in Public Administration from the University of San Francisco. At Loyola Marymount, Marisa had various internships in both the United States House of Representatives and Senate, where she began her career in politics.

Contact Marisa at marisa@sgrconsultants.com or 415 402 0303.

Eric was born and raised in the Bay Area, and is now returning to Northern California to join SGR as Deputy Political Director of State and National Development.

He was most recently the Southern California Finance Director for Katie Porter’s Senate campaign, where he oversaw all Southern California events, meetings, and major donor relationships.

Prior to Katie Porter’s campaign, he was an Assembly Fellow in Sacramento for Assemblymember Chris Ward. He staffed 3 bills that were signed into law and 1 constitutional amendment, ACA 13. ACA 13 was placed on the November 2024 ballot after passing both the State Assembly and State Senate with a 2/3 vote just 4 weeks after being introduced.

Eric serves as an Assembly District-elected delegate for the California Democratic Party. He is also the elected Treasurer of the California Democratic Party’s Progressive Caucus. Eric co-founded Project Super Bloom PAC in 2021 to create a pathway for more students to get involved in state legislative campaigns via paid opportunities. Project Super Bloom helped elect 6 new California State Assemblymembers and State Senators in the 2022 cycle.

Eric received his bachelor’s degree in Environmental Analysis and Public Policy from Claremont McKenna College. During college, he interned at national fundraising firm Left Rising, the California Environmental Justice Alliance, and Candace Valenzuela’s congressional campaign in Texas. He got his start in politics as a climate organizer on campus, founding a chapter of the national Sunrise Movement to generate political momentum behind renewable energy and climate justice policies.

Contact Eric at eric@sgrconsultants.com or 650-380-5102

Graham Derfner is a native New Yorker and graduate of Trinity School. He earned his Bachelor of Arts in English, Creative Writing from Northwestern University.

In 2018, Graham joined the JB for Governor campaign as the field organizer for Rock Island County, a role that culminated in coordinating a Get Out the Vote effort of 100 canvass shifts and 3,300 doors knocked on Election Day. He then returned to Chicago to lead the field operation for Marianne Lalonde’s 46th ward aldermanic race in the 2019 municipal elections, helping increase vote share from 18.1% to 49.9% between the general and run-off elections.

Later that year, Graham joined the digital organizing team at Biden for President in the Philadelphia HQ. He finished the 2020 election cycle at the DNC, working to organize the largest distributed calls program in political history - 88 million calls to voters in sixteen battleground states to help elect President Biden and Vice President Harris.

Before joining SGR, he spent more than two years at the White House in the Office of Presidential Correspondence. As Associate Director of Engagement, he managed department staff to respond to Americans’ concerns, amplify meaningful letters to principals, invite the general public to White House events, and create content for social media. He also led all policy letter template drafting and worked closely with White House stakeholders to clear language and ensure consistent messaging.