NextMinute and Buildertrend are both built specifically for builders and construction trades. They are designed for managing the more complex projects common to builders, carpenters and construction trades.
Buildertrend features really suit the larger building companies with 30+ staff, whereas NextMinute is perfect for building businesses with 5 to 50 staff. NextMinute is much more cost effective while providing the core features of Buildertrend and more.
NextMinutes job planning features stand out and the supplier invoice import integration makes back costing easy and effective. Buildertrend has a good customer portal whereas NextMinute does not, yet (roadmap priority item).