G2 Vendor Directory

Impress.org vs. Zeffy

Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.

Impress.org

Lansing, Michigan

Zeffy

Montreal, CA

MetricImpress.orgZeffy
Avg. rating4.84.9
Total reviews613,532
Review growth (QoQ)—+790.0%
Products on G211
Categories covered23
Best category rank#31 in Donor Management#2 in Donor Management
Small Business93.1%94.1%
Mid-Market6.9%5.5%
Enterprise0.0%0.4%