Engineering and construction companies need a joint venture logo designed

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This customer received 93 logo designs from 38 designers. They chose this logo design from monstersox as the winning design.
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My company, ECM, a construction company, has partnered with an engineering firm, CPC, to form a joint venture called Mining Process Engineering and Construction (MPEC). I need a logo designed that incorporates elements of both our logos (the swirl and the triangle - see below images) and I was thinking of a logo where the swirl sits in the triangle. I designed something in Canva but wasn't happy with the colour. I have also attached that logo so you can see what I was trying to do. Both parties would like to keep the colours from their logos but there is so much a mix I am not sure it would be compatible so feel free to play around with them.
Target Market(s)
for one client only
Industry/Entity Type
Construction
Logo Text
MPEC - A CPC & ECM Joint Venture
Logo styles of interest
Pictorial/Combination Logo
A real-world object (optional text)



Font styles to use
Colors
Designer to choose colors to be used in the design.
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- see above
Nice to have
- see above
Should not have
- see above