Vetted Chief of Staffs in the NYC Metro

Yoni Rubin

Screened

Executive business operations leader specializing in FinTech and high-growth technology

New York, NY14y exp

“Operations leader with 15 years spanning IPO support, startup business operations, M&A integration, and founder/CEO experience. He has built management systems from scratch, cut burn by 40% through ERP and governance implementation, and led an acquisition integration that tripled revenue by opening a new market.”

Nancy Meyer

Screened

Executive Chief of Staff specializing in healthcare operations and cross-functional execution

New York, NY29y exp

“Healthcare administration and executive operations leader with 15+ years at Mount Sinai Health System, operating as a strategic partner to senior leadership in a complex academic medical environment. She has evolved into chief-of-staff-style work focused on executive enablement, enterprise coordination, and strategic execution, and recently earned a Certified Chief of Staff credential. Notably, she led the buildout of a centralized administration team that improved executive support, operational efficiency, and cross-department collaboration.”

Marcus Benayon

Screened

Executive Chief of Staff and organizational psychologist specializing in family offices and healthcare

New York, NY17y exp

“Chief of Staff/operator-advisor with an unusual blend of healthcare operations, behavioral psychology, family office advisory, and ethical AI investing. Has led operational stabilization that drove ~70% revenue growth at a healthcare business, co-founded the North American arm of an ethical AI investment platform, and now advises UHNW families across governance, succession, philanthropy, and cross-border strategy.”

Matthew Knecht

Screened ReferencesStrong rec.

Executive Chief of Staff / Legal Operations leader in nonprofit public defense

Neptune, New Jersey11y exp

“Former attorney turned senior operations/Chief of Staff-style leader with ~20 years balancing strategy and day-to-day execution. Led multi-office expansions (e.g., launching a new Detroit office) and built a professionalized finance function with audit-ready controls to free up CEO bandwidth. Also led an emergency COVID-era shift to remote operations while safeguarding safety, morale, and revenue.”

“Chief of Staff at clinical-stage immunotherapy startup Tevogen Bio who grew from operations administrator into a senior executive support role as the company transitioned from pre-public to public. Brings hands-on experience with NASDAQ IPO support, SEC 10-Q coordination, ERP implementation, and acting as a proxy for the CEO across executive discussions.”

“Operations/program leader with experience supporting CEOs and scaling organizations through rapid expansion and multi-team initiatives. Implemented RACI + Asana-based execution systems and built board/KPI reporting cadences that improved executive decision speed and visibility across departments. Has worked across startups and in a foundation environment in C-suite-adjacent roles.”

“Chief of Staff at Molecular Affinities and former Investor Relations & Operations manager at JCAM Investments, with hands-on experience supporting capital raising while simultaneously tightening operations (website, investor onboarding, back office). Strong operator who implements and drives adoption of systems like HubSpot, Asana, and Slack to improve executive productivity and team accountability.”

“Chief of Staff/operator who joined venture-backed startup Blockless at the pre-seed stage and built the operating system from scratch while acting as the founder’s right hand. Combines startup execution, fundraising support, and deep Web3/DeFi domain fluency, including helping close a $3.5M seed round ahead of schedule with clean diligence materials.”

“Chief of Staff and public-sector leader who has stood up new functions from scratch—hiring 26 people and building governance/processes across 8 locations—while navigating high-stakes regulatory stakeholders. In industry, implemented OKRs and performance systems (Leapsome) and led change communications to improve executive productivity and cross-team accountability.”

Hadar Bar-zakai

Screened

Executive Chief of Staff specializing in strategic operations for SaaS startups

New York, NY8y exp

“Operations, project management, and QA leader at ColdTrack, a logistics tech company serving the cold chain and perishables industry. Progressed from operations/PM into QA leadership, where they built structured QA and release processes, cut defects by ~80%, and led 15 legacy-to-in-house client migrations with minimal disruption. Strong fit for fast-moving environments that need operational rigor, cross-functional execution, and customer-sensitive delivery.”