This document lists 10 IT leaders to follow on Twitter for their expertise and insights in data science, business intelligence, data quality, big data, analytics, and startups. They include data scientists, analysts, and executives at companies like IBM, Constellation Research, and Startup Professionals Inc. Following these IT experts on Twitter can provide valuable information from leaders in fields like data, analytics, and emerging technologies.

1. 10 IT Leaders We Follow on Twitter

2. Carla Gentry @data_nerd
Data Scientist

3. Yves Mulkers @YvesMulkers
Business Intelligence Professional

4. Rich Northwood @TheDataGeek
Data Quality & Control Expert

5. R Ray Wang @rwang0
Principal Analyst, Founder & Chairman Constellation

6. Hilary Mason @hmason
Data Scientist @accel

7. James Kobielus @JamesKobielus
Big Data Evangelist @IBM

8. Kirk Borne @KirkDBorne
PhD Astrophysics & Computational Science

9. Martin Zwilling @StartupPro
Founder & CEO at Startup Professionals Inc.

10. Eric Kavanagh @eric_kavanagh
CEO @thebloorgroup

11. Jeff Kelly @jefferyfkelly
Analyst and Journalist @Wikibon