Core Team & Advisors

Our team has been at the center of enterprise since the early days.

We know companies are successful because of the people who build them. Our extended team, including our Board of Advisors and Investment Advisory committee, include tech's most sought-after and respected leaders with deep functional expertise at iconic companies.

Our part-time Operating Partners are often the most-requested introductions we receive from our founders, and they're on tap to dedicate time each week to advise and make the right connections at the right time.

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Mallun Yen

Founder & CEO

Mallun has devoted the past 20 years to changing the status quo and shifting industry norms, as a founder, operator, investor, and category-creator. She founded Operator Collective in 2019, and serves as the CEO and General Partner.

OpCo Core Team
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Haley Daiber Brannan

Investing Partner

Haley is an investing partner at Operator Collective, focused on investing in early-stage founders of B2B software businesses and supporting founders post-investment. She joined OpCo in 2023 after leading business operations at a growth-stage startup, with prior experience as an investor and founder herself.

OpCo Core Team
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Claire Hughes Johnson

OpCo Board of Advisors & Operator LP

Corporate Officer, Stripe

Claire is a longtime advisor and founding LP to OpCo, and as a member of the Board of Advisors frequently supports PortCos on operational excellence. She is a corporate officer and advisor to Stripe, and was COO for 7 years where she helped the company grow from less than 200 to 8000+.

OpCo Board of Advisors
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Erica Ruliffson Schultz

OpCo Board of Advisors & Operator LP

President, Field Operations, Confluent

Erica is recognized as one of the most sought-after and effective enterprise revenue leaders. She's currently President of Field Operations at Confluent, the real-time data streaming platform. Erica was the first Operator LP check into OpCo and serves as a key member of the Board of Advisors.

OpCo Board of Advisors
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Anna Jacobson

Operations & Data Partner

Anna leads Operator Collective’s operations vertical, including investment ops, data analytics, team ops, investor relations, fundraising ops, and fund administration. She is a cross-functional business leader, data strategist, and operations veteran who is passionate about combining technology with process and design to ensure outstanding collaboration across technical, business, and creative teams.

OpCo Core Team
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Caroline Caswell

Marketing Partner

Caroline oversees content, social, PR/communications, and brand marketing at Operator Collective, and supports PortCo founders and teams on major moments and marketing inflection points. She has 15+ years of experience in marketing and comms strategy and execution, and has advised dozens of founders and CEOs across all sectors.

OpCo Core Team
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Tekedra Mawakana

OpCo Board of Advisors & Operator LP

Co-CEO, Waymo

Tekedra is the Co-CEO and former COO of Waymo, an autonomous driving technology company. She is widely known for her operating prowess and strategic thinking, and as a member of our Board of Advisors she helps portfolio companies plan for growth while remaining nimble.

OpCo Board of Advisors
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Elena Gomez

OpCo Board of Advisors & Operator LP

CFO, Toast

Elena is a highly respected CFO, currently at Toast and formerly at Zendesk. She has decades of senior finance experience and helps our portfolio companies as a member of our Board of Advisors think strategically and grow efficiently.

OpCo Board of Advisors
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Guergana Tomova

Fractional CFO

Guergana leads Operator Collective’s Finance function, focused on fund management, financial reporting, compliance, audit, tax, and management company accounting. She is a seasoned CFO with 20+ years of experience at top-tier venture capital firms and a passion for technology, innovation and excellence.

OpCo Core Team
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Dini Mehta

OpCo Operating Partner & Operator LP

Dini is an OpCo Operating Partner and former Chief Revenue Officer at Lattice, where she grew revenue from $5M to $100M+ and scaled the sales organization from 7 to 170 employees with almost no attrition. At OpCo, she coaches and advises our PortCo founders on critical issues, including building and scaling GTM engines.

OpCo Operating Partner
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Dana Marohn Spiliotis

OpCo Operating Partner & Operator LP

Dana is an OpCo Operating Partner and former SVP of Strategic Finance and Corporate Development at ZoomInfo (NASDAQ: ZI). She joined ZI after advising the company on its IPO while at Morgan Stanley. At OpCo, she advises companies on M&A and associated positioning, financial and strategic planning, budgeting, capital raising, and overall strategy.

OpCo Operating Partner
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Leyla Seka

OpCo Board of Advisors, Chair & Operator LP

Leyla serves as the Chair of the Board of Advisors, an integral leadership role helping to shape OpCo's fund strategy and support its portfolio. She was most recently COO of OpCo PortCo Ironclad, a digital contracting platform. Leyla spent nearly 12 years in multiple EVP roles at Salesforce, where she built and scaled iconic products like the AppExchange.

OpCo Board of Advisors
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Stacy Brown-Philpot

OpCo Board of Advisors & Operator LP

Board Director: Nordstrom, HP, Noom

Stacy is the former CEO of TaskRabbit, where she led the transformation of a fast-growing startup into a global business and its successful acquisition by the IKEA Group. In addition to OpCo’s Board of Advisors, she serves on the investment committee for the SoftBank Opportunity Fund.

OpCo Board of Advisors
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Pam Kostka

OpCo Operating Partner & Operator LP

Pam is an OpCo Operating Partner and former SaaS CEO and CMO. She is a recognized leader in building enterprise companies, strategy, category definition, and recruiting and building strong teams, and helps our PortCo CEOs navigate inflection points, including finding product-market fit, developing GTM motions, and driving efficiency.

OpCo Operating Partner
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Ambrosia Vertesi

OpCo Operating Partner & Operator LP

Chief People Officer, Ironclad

Ambrosia is an OpCo Operating Partner and Chief People Officer at Ironclad. She has been the people leader at a number of high-growth startups like Hootsuite and Duo Security and scaled teams from their early days to 800+. She has a strong record of partnering with Founders and CEOs on key workplace and people strategies.

OpCo Operating Partner
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Magdalena Yesil

OpCo Investment Advisory Committee & Operator LP

Board Director: SoFi, Zuora, Smartsheet

Magdalena is the founding board member and first investor of Salesforce. She’s been an early investor in over 30 companies and is the founder of Broadway Angels. She has been a part of OpCo since before its inception and is a member of the Investment Advisory Committee where she advises our fund strategy.

OpCo Investment Advisory Committee
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Dan Scheinman

OpCo Investment Advisory Committee

Board Director: Zoom, Arista, Sentinel One

Dan is a legendary angel investor who has seen two iconic companies, Zoom and Arista, from day 0 to IPO and beyond as the first check in and current board member. He has been a part of OpCo since the very beginning and continues to advise our fund strategy and support our portfolio companies as a member of the Investment Advisory Committee.

OpCo Investment Advisory Committee
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