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Brennan Spellacy

Co-founder & CEOPatch

San Francisco Bay Area

Member Since August 2022


Problem Analysis


Brennan is the CEO & Co-Founder of Patch, the platform for negative emissions. Prior to founding Patch with co-founder Aaron Grunfeld, Brennan worked in a range of product & engineering roles at Sonder and Shopify. He received a degree in chemical engineering from McGill University.

Published content

13 steps to keep companies on track to fulfill their mission

expert panel

Is your establishment still on the right path to achieve its original objectives? As the business starts to pick up its momentum in the marketplace through brand recognition and new partnerships, it's sometimes easy for founders or leadership teams to get sidetracked away from their original goals and why the company was launched in the first place. While it's important for entrepreneurs and business owners to task on certain risks and close in on the right deals, it's also crucial to maintain your core values and business integrity in the process as the company grows. Below, a panel of experts from Fast Company Executive Board shares 13 ways for business owners and executives to ensure that their current and future business practices still align with their organization's original mission and vision.

Company details


Company bio

Patch is building the infrastructure for a sustainable economy by enabling gigatonne scale carbon removal. With Patch, companies can embed climate action into their own products, neutralizing the carbon impact of everyday transactions like shipping, travel and financial services. From an API-integration to direct purchase, Patch is the carbon removal platform for businesses and consumers to seamlessly contribute to trusted removal and reduction projects at any scale.



Area of focus

Financial Services

Company size

51 - 200

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