The highest Proven Scores in Marketing automation & email are Customer.io (73/100, Established), Braze (73/100, Established) and Brevo (formerly Sendinblue) (66/100, Established). They are ranked on the Proven Trust Index using Proven marketplaces, Member redemption clicks, Client quality, Operating tenure, Market standing, Connected relationships and Connected data. Inputs without data are left out and the score is scaled to 100. Vendors cannot pay to change a score.
| Rank | Name | Proven Score | Band | Best for |
|---|---|---|---|---|
| 1 | Customer.io | 73 | Established | Stage: Series A · Team size: 420 employees · Region: Portland, United States · Use case: Marketing automation & email |
| 2 | Braze | 73 | Established | Team size: 2,000 employees · Region: New York, United States · Use case: Marketing automation & email |
| 3 | Brevo (formerly Sendinblue) | 66 | Established | Stage: Debt Financing · Team size: 1,000 employees · Region: Paris, France · Use case: Marketing automation & email |
| 4 | Sprout Social | 59 | Established | Team size: 1,400 employees · Region: Chicago, United States · Use case: Marketing automation & email |
| 5 | Beefree | 56 | Established | Team size: 110 employees · Region: San Francisco, United States · Use case: Marketing automation & email |
| 6 | Qualified.com, Inc. | 53 | Established | Stage: Merger / Acquisition · Team size: 260 employees · Region: San Francisco, United States · Use case: Marketing automation & email |
| 7 | Constant Contact | 52 | Established | Stage: Venture (Round not Specified) · Team size: 1,500 employees · Region: Waltham, United States · Use case: Marketing automation & email |
| 8 | CleverTap | 52 | Established | Stage: Series D · Team size: 550 employees · Region: San Francisco, United States · Use case: Marketing automation & email |
| 9 | Klaviyo | 45 | Emerging | Team size: 2,400 employees · Region: Boston, United States · Use case: Marketing automation & email |
| 10 | Attentive | 42 | Emerging | Stage: Series E · Team size: 1,800 employees · Region: New York, United States · Use case: Marketing automation & email |
| 11 | Mixmax | 40 | Emerging | Stage: Series A · Team size: 140 employees · Region: San Francisco, United States · Use case: Marketing automation & email |
| 12 | Tofu | 35 | Emerging | Stage: Series A · Team size: 31 employees · Region: San Mateo, United States · Use case: Marketing automation & email |
| 13 | Wunderkind | 33 | Emerging | Stage: Series C · Team size: 410 employees · Region: New York, United States · Use case: Marketing automation & email |
| 14 | Navattic | 31 | Emerging | Stage: Seed · Team size: 62 employees · Region: New York, United States · Use case: Marketing automation & email |
| 15 | Drift | 23 | Emerging | Stage: Merger / Acquisition · Team size: 800 employees · Region: Atlanta, United States · Use case: Marketing automation & email |
| 16 | beehiiv | 17 | Emerging | Stage: Series B · Team size: 270 employees · Region: New York, United States · Use case: Marketing automation & email |
| 17 | Okara | 15 | Emerging. Provisional score | Use case: Marketing automation & email |
| 18 | Buffer | 14 | Emerging. Provisional score | Use case: Marketing automation & email |
| 19 | WebEngage | 9 | Emerging. Provisional score | Use case: Marketing automation & email |
| 20 | Acumbamail | 5 | Emerging. Provisional score | Use case: Marketing automation & email |
Vendors in Marketing automation & email are ordered by Proven Score. Data updated 2026-10-27. Inputs without data are left out and the score is scaled to 100. A score without client quality is marked Provisional score.
| Input | How it is measured | Max |
|---|---|---|
| Proven marketplaces | Investor, bank and government marketplaces on Proven that list the vendor. Log scale, full marks at 150. | 15 |
| Profile views | Member views of the vendor profile across Proven marketplaces. Log scale, full marks at 10,000. Added once the data feed is live. | 15 |
| Member redemption clicks | Clicks by verified members on the vendor's offers. Log scale, full marks at 5,000. | 15 |
| Client quality | Clients the vendor names on its own website, case studies or press releases, weighted by caliber. Full marks at 4. | 20 |
| Operating tenure | Years since founding, from a public record. Full marks at 15 years. | 10 |
| Market standing | Publicly traded or owned by a public company 10. Private company valued $1B+ or established partnership 6. | 10 |
| Connected relationships | Client relationships confirmed by CRM sync or Crossbeam. Log scale, full marks at 500. | 10 |
| Connected data | Crossbeam connected 3, CRM syncing 2. | 5 |
Vendors cannot pay to change a score. Scores can't be bought. About the data.
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