Circleback vs Grain

Grain has a Proven Score of 58/100 (Established). Circleback has a Proven Score of 37/100 (Emerging). Grain ranks higher in Video & meetings. Both are in Video & meetings on the Proven Trust Index. Vendors cannot pay to change a score. Scores can't be bought.

Score inputs

Input	Circleback	Grain
Proven marketplaces	5.4 / 15	11.8 / 15
Member redemption clicks	4.5 / 15	8.3 / 15
Client quality	20 / 20	20 / 20
Operating tenure	2 / 10	5.3 / 10
Market standing	0 / 10	0 / 10
Connected relationships	0 / 10	4 / 10
Connected data	0 / 5	0 / 5

Best for

Shared

Use case: Video & meetings

Different

Stage — Circleback: Seed; Grain: Venture (Round not Specified)
Team size — Circleback: 7 employees; Grain: 97 employees
Region — Circleback: McLean, United States; Grain: San Francisco, United States

Pages

Circleback · Grain · Best Video & meetings for startups, ranked by the Proven Trust Index

Data updated 2026-10-27.

Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Scores can't be bought. Data updated 2026-10-27. About the data · Proven