Custos Data Services 

About 

Custos Data Services was founded by Okeino McGowan, a data engineer and former educator with experience supporting non-profits, research teams, and community organizations.

Custos focuses on clarity, trust, and practical outcomes—helping teams spend less time fixing data and more time using it.

Services 

Data Cleanup & Single Source of Truth
We help consolidate spreadsheets and disconnected systems into clear, well-structured datasets your team can trust—reducing confusion and duplicated effort 

Automated Reporting & Analytics Support
We reduce manual reporting by building repeatable, documented data pipelines for monthly and quarterly reporting—saving staff time and improving consistency across reports. 

Data Quality & Validation
We implement checks and guardrails so data issues are caught early—reducing errors, increasing confidence in results, and protecting reporting credibility. 

Fractional Data Engineering Support
Ongoing monthly support for maintenance, improvements, and staff questions—providing reliable data expertise without the cost or complexity of a full-time hire. 

How We Work 

Custos Data Services offers flexible engagement models, from a free discovery consultation to project-based work and ongoing monthly support.

Pricing is designed to be transparent and right-sized for mission-driven organizations.