What is a Professional Services Organization (PSO)?
Many things, including:
Consulting | Onboarding | Implementation
Training | Enablement | Best practices | Operations
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A Professional Services Organization (PSO) is the team that helps customers successfully implement, configure, and get value from the products. They make sure, usually in a paid and project-based way, that customers are realizing value, adopting products deeply, and on-track to renew.
Think of it as a strategy and technology consulting organization within the company... your own personal implementation Geek Squad.
If the product is the what, PSO is the how. They can exist either inside or alongside the Customer Team, but they are very distinct - not to be confused with Support or Customer Success.
CS & Support are relationship-based & ongoing. It behaves like a subscription.
PSO is project-based & time-bound. It behaves like a project.
In simple terms:
Why do companies create Professional Services teams?

In the journey:
Sales → PSO → Customer Success → Support
PSO is the bridge between purchase and long-term value.
They make sure the customer starts off strong so CS doesn’t inherit a mess.
Roles commonly seen in the PSO org:
Depending on the company, PSO might handle some or all of the following:
1. Implementation & onboarding
A good example here is the company Gainsight which uses a methodology they call Accelerate. It reduces T-t-V by focusing the best practices they've learned from over 1,200 clients over the years.
2. Customization & integration
3. Technical consulting
4. Data migration
5. Training & enablement