Best Nonprofit Software for Google Tag Manager

AuctionMethod is a customizable auction platform designed specifically for auction businesses since its inception in 2012. It features a flat-rate pricing structure that is ideal for nonprofits conducting fundraising auctions. You can host various types of events—including timed online, live simulcast, silent, and hybrid auctions—on a fully branded website under your own domain, ensuring that donor focus remains on your organization instead of a third-party marketplace. Use the Auctioneer Toolbox mobile app, available for both iOS and Android, to catalog donations, oversee bidder registration and qualifications, and streamline post-event invoicing and receipt processes. With integrated payment options through Fiserv, Stripe, Authorize.net, and others, funds flow directly into your merchant account without any commissions or percentage deductions, allowing nonprofits to retain more of their fundraising efforts. Enjoy unlimited access to auctions, lots, images, and bidders as part of the standard offering. Mailing list integrations with Mailchimp and Constant Contact facilitate effective promotion of your events. The platform boasts a remarkable 100% uptime, a 94% renewal rate, and has earned the 2026 Top Performer Award in Auction Software from SourceForge.

Bonterra DonorDrive is an industry-leading peer-to-peer and event fundraising platform designed to help nonprofits create personalized supporter experiences at scale. The platform empowers supporters to fundraise for shared causes through intuitive fundraising pages, mobile tools, social sharing, flexible payments, and express checkout. DonorDrive helps organizations activate more fundraisers while reducing staff time through a highly configurable event builder and streamlined campaign tools. Its supporter engagement engine includes personalized coaching, built-in fundraising guidance, corporate fundraising, personalized communications, gamification, leaderboards, livestreaming, activity tracking, and social media integrations. Nonprofit teams can build unique fundraising events with clicks instead of code using event import, templating, configurable branding, participant and team types, and content management. DonorDrive also supports CRM integration so organizations can connect fundraising activity with broader supporter data and deepen donor relationships. The platform is designed to support in-person, hybrid, and virtual fundraising events. Bonterra Premier Support adds proactive platform reviews, priority support, data and project management services, hands-on training, and coaching. By combining peer-to-peer fundraising, event management, supporter engagement, CRM integration, mobile tools, and expert support, Bonterra DonorDrive helps nonprofits grow participation, revenue, and long-term donor value.