Sononym - Finally, a sample browser that understands audio
Samplism - Feature-packed, audio asset manager for Mac.
Resonic Player - Resonic is the planet's fastest audio and music player, browser, and sample manager, built around a big waveform view and a frequency analyzer.
Soundly - Functional music for better sleep, focus and relaxation
AudioFinder - Audio asset management system & music production hub for Mac
Soundminer - Professional digital audio asset manager and search engine.