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Jim Stoneham
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Portfolio Success
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Jim Stoneham

Operating Partner

Jim joined SignalFire in 2022 and leads the Portfolio Success team, which enables the firm to discover the best founders through innovative marketing and sourcing, then partners to accelerate their success as they build and scale their companies.

Prior to joining SignalFire, he was CMO at Stripe, leading the rapid transformation and growth of the Marketing team. He was previously CMO and Head of Growth at New Relic, using a range of data-driven practices to drive developer adoption and enterprise customer scaling. He joined New Relic through the acquisition of Opsmatic, a SaaS infrastructure startup where he was the CEO and co-founder. Prior to Opsmatic, he was CEO of Payvment, a pioneering social commerce platform acquired by Intuit.

He has spent his career creating and scaling businesses at companies such as Apple, Yahoo, and numerous high-growth startups.

Pets
Finnegan and Franklin

Jim Stoneham's Posts

The marketing hire startups often get wrong—and how to get it right
Advice
People Management
February 4, 2025

The marketing hire startups often get wrong—and how to get it right

Startups often make the wrong first marketing hire—focusing on growth before solidifying their positioning. Learn why product marketing should come first and how the right hire can set your company up for scalable success.
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Generative AI tools for startup marketing: A practical guide
Advice
May 30, 2024

Generative AI tools for startup marketing: A practical guide

Discover all the latest tools and tips to create high-quality marketing assets courtesy of AI thought leader Ross Simmonds.
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Modernizing VC marketing with a data-driven strategy
SignalFire
April 2, 2024

Modernizing VC marketing with a data-driven strategy

SignalFire has invested in the necessary infrastructure to take a truly data-driven approach to marketing.
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The Quarterly Sit-Down: How to run more efficient performance reviews
Advice
November 9, 2023

The Quarterly Sit-Down: How to run more efficient performance reviews

Learn how to make continuous feedback a habit with QSD. Streamline your review process and improve collaboration. Boost productivity today!
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Designing free trials that close deals
Advice
November 6, 2023

Designing free trials that close deals

Learn how to design free trials that close deals. Identify decision-makers, set success criteria, establish timing, and provide ROI for maximum conversions.
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How CMOs say AI is changing content, sales, and event marketing
Advice
September 11, 2023

How CMOs say AI is changing content, sales, and event marketing

Which jobs AI could replace, what tools CMOs are using, and how to keep marketing authentic while personalizing at scale.
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How disqualifying customers can actually boost sales
Advice
August 2, 2023

How disqualifying customers can actually boost sales

Learn how to emphasize practical use cases, predictability, and auditability to show safe, immediate ROI when you sell AI to enterprises
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You know you need a customer success team when…
Advice
June 28, 2023

You know you need a customer success team when…

Discover how your startup can prevent customer churn and improve sales by splitting customer success from sales.
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I was Stripe’s CMO. Here’s why I’m joining VC firm SignalFire
SignalFire
March 23, 2022

I was Stripe’s CMO. Here’s why I’m joining VC firm SignalFire

Ex-Stripe CMO Jim Stoneham says "I'm thrilled to be joining VC firm SignalFire as an Operating Partner to help our portfolio with marketing."
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All Team
Portfolio Success