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Brennan Stang

@brennanstang

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Client Success Director at InnerSpace who built the function and led adoption of two AI-driven products.

Canada

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At InnerSpace, I built the Client Success function from the ground up and now lead post-sales across enterprise clients including Microsoft, LinkedIn, KPMG, PepsiCo and UnitedHealth. The operating model I built drove 620% NRR in 2023, 143% in 2024 and 180% in 2025.

I led client enablement for two AI-driven product launches, guiding adoption from launch and deployment into day-to-day workflows. I also partnered with client executives on adoption roadmaps and led change-management programs to replace manual processes with AI-driven workflows.

Previously, I managed Account Management at PatSnap, improving team GRR from 65% to 84% while maintaining 105% NRR. At FrontStream, I helped raise team retention to 90% and negotiated a key contract expansion that generated $250K in new annual revenue.

Experience

Work history, roles, and key accomplishments

Current

Director, Client Success

Current

InnerSpace

Sep 2023 - Present (3 years 1 month)

Built Client Success from the ground up and led the post-sales organization, driving 620% NRR in 2023, 143% in 2024, and 180% in 2025. Led AI adoption and enablement for enterprise clients including Microsoft, LinkedIn, KPMG, PepsiCo, and UnitedHealth.

Client Success AI Adoption Change Management NRR GRR Customer Health QBR Executive Engagement Data Analysis Salesforce HubSpot Notion Metabase Retool

Senior Manager, Client Success

InnerSpace

Jan 2023 - Sep 2023 (8 months)

Client Success AI Adoption Change Management NRR GRR Customer Health QBR Executive Engagement Data Analysis Salesforce HubSpot Notion Metabase Retool

Manager, Account Management

PatSnap

Feb 2021 - Nov 2022 (1 year 9 months)

Led a team of 8 Account Managers across SMB, mid-market, and enterprise segments, overseeing a $6.1M book of business and 375+ accounts. Improved team GRR from 65% to 84% and maintained 105% NRR while generating an average of $650K in quarterly upsell and cross-sell pipeline.

Account Management GRR NRR Upselling Cross Selling QBR LinkedIn Sales Navigator Customer Success Team Leadership Salesforce HubSpot

Manager, Customer Success

FrontStream

Jan 2020 - Feb 2021 (1 year 1 month)

Managed a blended team of 8 CSMs supporting enterprise, mid-market, and SMB clients. Raised team retention to 90% and negotiated a 1,100% increase in a key client contract, generating $250K in new annual revenue.

Customer Success Team Leadership Retention QBR Onboarding Customer Journey Mapping NPS Salesforce HubSpot

Team Lead, Customer Success

FrontStream

Jul 2019 - Jan 2020 (6 months)

Led a team of Customer Success Managers, maintaining 95% personal retention and shifting the operating model from reactive to proactive. Designed onboarding frameworks and customer journey maps to shorten time-to-value.

Customer Success Team Leadership Retention Onboarding Customer Journey Mapping QBR Salesforce HubSpot

Customer Success Manager

FrontStream

Jun 2017 - Jul 2019 (2 years 1 month)

Managed customer success for enterprise, mid-market, and SMB clients, consistently meeting or exceeding KPIs including 90% retention. Built CSM training and enablement programs and dashboards tracking account health and risk signals.

Customer Success Retention Onboarding QBR NPS Salesforce HubSpot