Communication APIs & UCaaS rankings

The top companies, scored the same way on whether AI agents can read, place, trust and act with them. How we rank

Red under 36, Amber from 36. Green is 70 or more with no section held below Green.

Rank	Company	Score
1	JetEmail Held below Green because your homepage's Organization markup is too thin: add a description, at least three official profiles (sameAs) and three of contact, address, legal name, founding date and related organizations.	89
2	E-World Communication	68
3	Best VoIP Business Phone Service in North Carolina	63
4	VocPhone	62
5 tied	Die Schweizer Business Messaging Plattform	59
5 tied	Transactional Email API Service For Developers \| Mailgun	59
7	imo.im	59
8	UComtel	57
9	Authenticalls	56
10	Talking Platforms USA	55

68 companies measured in Communication APIs & UCaaS: 0 Green · 21 Amber · 45 Red · 2 Unreachable

How we rank

Every company gets the same checks on its public website, scored 0 to 100. We name the top 25 (the top 10 in a narrow view) and any company you search for. Scores as of 27 October 2026. How we score and rank.