Head-to-head · B2B data

Coresignal vs Diffbot

Coresignal wins 13 of 25 decided metrics across 2 shared suites; the loser still leads where its column is highlighted. Same frozen test sets, same run; the better value in each row is highlighted.

Coresignal live

Structured public-web B2B datasets (employees, companies, jobs) with API, MCP and agentic search, a real-time employee endpoint that fetches at request time, and gated contact enrichment.

★ 4.8 · 12 reviewsA

Access: MCP · API · CSV · Dataset · Batch · Webhooks · 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	Coresignal · #27 of 29	Diffbot · not in suite
Match rate	55.1%	-
Valid email rate	37.0%	-
Latency p50	928ms	-
Cost / valid email	$0.654	-
Invalid rate	25.9%	-
Catch-all share	33.3%	-
Business email	100.0%	-
Right-person rate	100.0%	-
Decoy hit rate	0.0%	-
Catch-all detection	11.1%	-
Confidence-score quality	-16.7 pts	-
Geographic coverage	3	-

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #5 of 24	Diffbot · #14 of 24
Profile match rate	98.0%	85.0%
Identity accuracy	97.9%	100.0%
Latency p50	928ms	7,232ms
Price / matched profile	$0.133	$0.022
Current employer accuracy	93.8%	68.6%
Move detection	100.0%	25.0%
Decoy hit rate	0.0%	20.0%
Job title accuracy	77.1%	49.0%
Seniority label accuracy	82.1%	-
Location accuracy	95.8%	86.3%
Work history completeness	7.0	6.2
Education completeness	87.5%	90.2%
Skills present	95.8%	72.5%
Social / profile URLs	100.0%	94.1%
Coverage by geo / function / seniority	83.3%	60.0%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #19 of 23	Diffbot · #10 of 23
Domain-to-company match rate	97.0%	99.0%
Company name accuracy	93.8%	94.9%
Latency p50	1,039ms	1,127ms
Price / matched company	$0.133	$0.022
Industry accuracy	78.4%	83.8%
Employee count ±20%	27.4%	69.9%
HQ / location accuracy	80.4%	82.8%
Description present	97.9%	100.0%
Founding year accuracy	59.8%	73.7%
Domains / social profiles	97.9%	94.9%
Coverage by country / size	94.3%	95.0%

Technographic Datacore + suite-specific metrics

updated 2026-09-25

Metric	Coresignal · #8 of 10	Diffbot · not measured
Coverage	86.0%	-
Detection accuracy	32.1%	-
Latency p50	1,039ms	-
Cost / lookup	$0.150	-
Live stack recall	14.6%	-
Technologies per domain	51	-
Dated results	100.0%	-
Coverage by geo / size	75.0%	-

Questions about Coresignal vs Diffbot

Which is better, Coresignal or Diffbot?

Coresignal wins 13 of the 25 metrics decided between them, across 2 benchmarks that measured both. Leaderboard ranks: People Data: Coresignal #5 of 24, Diffbot #14 of 24; Company Data: Coresignal #19 of 23, Diffbot #10 of 23.

Which is cheaper, Coresignal or Diffbot?

Measured on the list price of each provider's central self-serve pack, divided by what it actually returned: People Data, price per matched profile: Coresignal $0.133, Diffbot $0.022; Company Data, price per matched company: Coresignal $0.133, Diffbot $0.022.

How do Coresignal and Diffbot compare in user reviews?

Coresignal holds 4.8 / 5 across 12 reviews on Datarade; 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 Coresignal and Diffbot?

Coresignal offers an MCP server, an API, CSV export, dataset delivery, batch endpoints, webhooks 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, CSV export, dataset delivery, batch endpoints, webhooks and native integrations.