Open Data · CC BY 4.0 · Updated Annually

B2B Cold Email
Benchmark Dataset 2026

The open benchmark dataset for B2B cold email campaign performance. 74 countries, 14 industries, 4 decision-maker seniority levels. Aggregated from real campaign data across verified B2B lists. Machine-readable JSON, embeddable HTML cards, live API. Attribution required under CC BY 4.0.

74
Countries
14
Industries
4
Seniority Levels
2.0
Dataset Version

Dataset Contents

by_geography — 74 Country Markets
Per-country cold email performance benchmarks covering open rate (low/median/high), reply rate, click rate, hard bounce target, soft bounce rate, unsubscribe rate, compliance tier, best send days, best send time, language, and personalisation index.
open_ratereply_rateclick_ratehard_bounce_targetcompliance_tierbest_daysbest_time_locallanguagepersonalization_indexdata_year
View JSON →    Browse countries →
by_industry — 14 Industry Verticals
Per-industry cold email performance including open rate, reply rate, click rate, buying cycle length in days, hard bounce target, best send days and times, decision maker titles, and subject line approach.
open_ratereply_rateclick_ratebuying_cycle_dayshard_bounce_targetbest_send_daysbest_send_timedecision_maker_titlessubject_approach
Browse industries →
by_job_level — 4 Seniority Levels
Performance benchmarks by decision-maker seniority: C-Suite, VP/Director, Manager, Owner/Founder. Includes optimal sequence length, sequence cadence, personalisation requirements, copy length guidance, and volume recommendations.
open_ratereply_rateclick_rateoptimal_sequence_lengthsequence_cadencepersonalization_requiredcopy_lengthvolume_recommendation
composite_scenarios — 6 Combined Scenarios
Pre-computed benchmark combinations for the most common outreach scenarios (e.g., USA × Technology × C-Suite × Verified List). Includes blended open rate, reply rate, and campaign notes.
idlabelopen_ratereply_ratenote

Access Methods

Static JSON Download
benchmark-data.json
Complete dataset as a single JSON file. 98+ data points. No authentication required. Served via Cloudflare CDN.
Download JSON
Live API
api.b2bdataindex.com
Cloudflare Workers API. Every response includes a _citation field. Rate limited, no API key required for public endpoints.
API Docs
Embeddable Cards
HTML Snippets
74 country cards and 14 industry cards. Static HTML, no JavaScript, no CDN. Copy and paste into any article or newsletter. Attribution included.
Get embed codes
Open Dataset Registry
HuggingFace Datasets
Published as a citable, versioned open dataset. Permanent dataset ID for academic and technical citations. Machine-learning pipeline compatible format.
Dataset card

Methodology

Aggregated from campaign data across 74 markets. Benchmarks reflect well-targeted campaigns to verified decision-maker lists unless noted. Ranges represent 10th-90th percentile performance. Data updated annually.

All ranges represent 10th-to-90th percentile performance across well-targeted campaigns run on verified decision-maker lists. Campaigns with bounce rates above 3% or poor targeting are excluded from aggregation. Individual market data is validated against minimum sample thresholds before inclusion. See full methodology →

Citation

APA

B2B Data Index. (2026). Cold Email Benchmark Report 2026. B2B Data Index Research. https://b2bdataindex.com/benchmarks/cold-email-2026/

All citation formats CITATION.cff cite.json
License

This dataset is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0). You are free to share and adapt the data for any purpose, including commercial use, as long as you give appropriate credit to B2B Data Index (b2bdataindex.com) and indicate if changes were made. Attribution must be visible in any public-facing use of the data.

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