You could always change the mixer...
Just kidding! I know what you mean, its nice to have all the same equipment next to each other. Its not just the logo's that match; certain companies often try to make control knob tops match, styles, colours etc all match too.
Obviously, theres a point where virtually no single manufacturer makes ALL the gear you need, eg: Pioneer dont make amps suitable for continuous Disco use, nor speakers etc. But we match what we can.