Head-to-head · B2B data

Cognism vs Diffbot

No suite in this run measured both Cognism and Diffbot; each block below shows one of them alone.

Cognism

Compliance-first sales intelligence with strong European coverage and phone-verified mobiles.

★ 4.5 · 1,628 reviewsB

Access: MCP · API · Dataset · CSV · Batch · Integrations

Diffbot

Web-scale Knowledge Graph built by crawling the public web: Enhance matches people and organizations, DQL searches entities including job posts, with an optional re-crawl of sources.

★ 4.9 · 29 reviewsA

Access: MCP · CLI · API · Dataset · CSV · Batch · Webhooks · Integrations

Email Datacore + suite-specific metrics

updated 2026-09-25

Metric	Cognism · #24 of 29	Diffbot · not in suite
Match rate	66.1%	-
Valid email rate	-	-
Latency p50	-	-
Cost / valid email	-	-
Invalid rate	-	-
Catch-all share	-	-
Business email	-	-
Right-person rate	-	-
Decoy hit rate	-	-
Catch-all detection	-	-
Confidence-score quality	-	-
Geographic coverage	-	-

Phone Datacore + suite-specific metrics

updated 2026-09-25

Metric	Cognism · #5 of 24	Diffbot · not in suite
Match rate	73.5%	-
Valid / reachable rate	-	-
Latency p50	-	-
Cost / mobile number	-	-
Right-person rate	-	-
Mobile coverage	-	-
Disconnected rate	-	-
Low-activity share	-	-
Landline / mobile classification	-	-
Country accuracy	-	-
Geographic coverage	-	-

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	Cognism · not measured	Diffbot · #14 of 24
Profile match rate	-	85.0%
Identity accuracy	-	100.0%
Latency p50	-	7,232ms
Price / matched profile	-	$0.022
Current employer accuracy	-	68.6%
Move detection	-	25.0%
Decoy hit rate	-	20.0%
Job title accuracy	-	49.0%
Seniority label accuracy	-	-
Location accuracy	-	86.3%
Work history completeness	-	6.2
Education completeness	-	90.2%
Skills present	-	72.5%
Social / profile URLs	-	94.1%
Coverage by geo / function / seniority	-	60.0%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	Cognism · not measured	Diffbot · #10 of 23
Domain-to-company match rate	-	99.0%
Company name accuracy	-	94.9%
Latency p50	-	1,127ms
Price / matched company	-	$0.022
Industry accuracy	-	83.8%
Employee count ±20%	-	69.9%
HQ / location accuracy	-	82.8%
Description present	-	100.0%
Founding year accuracy	-	73.7%
Domains / social profiles	-	94.9%
Coverage by country / size	-	95.0%

Questions about Cognism vs Diffbot

Which is better, Cognism or Diffbot?

No benchmark in this run measured both, so they have no metric in common. Cognism is ranked on Email Data and Phone Data; Diffbot is ranked on People Data and Company Data.

How do Cognism and Diffbot compare in user reviews?

Cognism holds 4.5 / 5 across 1,628 reviews on G2 and Capterra; Diffbot holds 4.9 / 5 across 29 reviews on G2. Ratings belong to their platforms and play no part in the benchmark grades.

How can you get data out of Cognism and Diffbot?

Cognism offers an MCP server, an API, dataset delivery, CSV export, batch endpoints and native integrations; Diffbot offers an MCP server, a command-line tool, an API, dataset delivery, CSV export, batch endpoints, webhooks and native integrations. Both offer an MCP server, an API, dataset delivery, CSV export, batch endpoints and native integrations.