Rimini Street names Costello chief operating officer
Rimini Street appointed Keith Costello as Chief Operating Officer and Alexander Guasch as Chief Delivery Officer to expand its senior leadership. Costello will oversee product strategy, professional services sales, and global operations. Guasch will lead end-to-end delivery of Rimini Street products and services worldwide. The changes are intended to support global growth and execution.
How this was made

The 30-second read
Why it matters
The COO role now covers product strategy, professional services sales, and global operations, while the Chief Delivery Officer leads end-to-end development and delivery worldwide. This could improve execution discipline, but the article does not quantify expected outcomes.
Market read
This is a leadership and operating-structure update that may affect expectations for service delivery quality and scaling execution, but it lacks financial or operational metrics.
What to watch
Investors may focus more on customer retention, renewal rates, and delivery performance metrics than on titles; the article does not provide new KPIs or guidance.
Background
Rimini Street provides third-party support for Oracle, SAP, and VMware software and is expanding its broader software support and services business.
Market effects
May modestly influence sentiment toward enterprise software third-party support and services providers via perceived delivery-execution strength.
No specific region disclosed, but the appointments are described as supporting international delivery consistency.
Global delivery and 24/7 service claims could matter for multinational clients, but no measurable KPI change is provided.
Counterpoint
The appointments may be largely organizational, with limited incremental impact on revenue or margins without accompanying product or commercial changes.
Key entities
- companyRimini Street
Appointed Keith Costello as Chief Operating Officer and Alexander Guasch as Chief Delivery Officer, reshaping product strategy and delivery responsibilities.
- executiveKeith Costello
New Chief Operating Officer, previously held enterprise applications and SAP leadership roles at DXC and IBM/SAP.
- executiveAlexander Guasch
New Chief Delivery Officer, with 30+ years in global IT service delivery leadership across HPE, IBM, VMware, and others.
- executiveSeth Ravin
CEO whose responsibilities are reshaped as product strategy and services sales move to the COO.



