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Apogee Components: General parts. Comprehensive inventory, up to mid-range high-power. Good experience, but significantly more expensive.
Madcow Rocketry: General parts. Less comprehensive inventory, but a good competitor.
Wildman Rocketry: General parts. Less comprehensive inventory, but also goes all the way up to "the big stuff". Also a good competitor.
Public Missiles: Especially good for tubes on tubes on tubes.
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Cesaroni Technologies, Inc.: Our main supplier for rocket motors. Usually AMW/ProX sells their stuff and is usually on-site for MA/ME-based launches, . They very polite, occasionally difficult to reach. Factory explosion occurred Spring 2016, unsure of current status.supply will be limited for 8+ months.
Important notes: Vmax warning and Forward closure warning
Aerotech: Less Aerotech: Much less common supplier of rocket motors for rocket team, mostly due to shipping times.
Loki Research: Less common motors, but lots of interesting projectproducts. Not a lot of team experience.
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Someone fill in here, I don't know much about this.
APC Composites
US Composites
X-Winder?
Electronics
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