Contact Us
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Our Team
Management
Michael Sewart
Chief Executive Officer
mikes@ocisi.com
414-247-7175
Brian Sewart
President
brians@ocisi.com
414-247-7174
Rick Miller
Vice President
rickm@ocisi.com
414-247-7164
administration & production
Marilyn Marriott
Production Manager
marilynm@ocisi.com
414-247-7194
Cathy Landwehr
Accounting Manager
cathyl@ocisi.com
414-247-7162
Sales
Eric Hafsoos
Business Development Manager
erich@ocisi.com
414-247-7180
Dale Kumlien
Business Development Manager
dalek@ocisi.com
414-247-7172
James Peterson
Sales Manager
jimp@ocisi.com
414-247-7169
Development
Jon Metzler
Software Engineering Manager
414-865-2330
Thomas Beck
Product Manager – Software
414-247-7167
