Bullhorn — market share 2026

esp

According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Bullhorn is the email service provider (ESP) for 103 domains — 0.02% of 617,702 SPF-publishing domains. Its strongest TLD is .com (78.6% of its domains). Detection: include: mechanisms in the SPF record.

103domains

0.02%of SPF-publishing domains

16distinct TLDs

2026-07-13snapshot (updated daily)

Commonly used together with Bullhorn

What else the same 103 domains use — cross-tabulated from the same daily snapshot (2026-07-13).

Type	Service	Domains	Share of Bullhorn users
Mailbox	Microsoft 365	57	55.3%
Mailbox	Mimecast	16	15.5%
Mailbox	Google Workspace	12	11.7%
Mailbox	Proofpoint	7	6.8%
Mailbox	Cisco IronPort	3	2.9%
Mailbox	Unknown / Other	2	1.9%
ESP	HubSpot	46	44.7%
ESP	Salesforce	26	25.2%
ESP	SendGrid (Twilio)	20	19.4%
ESP	Amazon SES	15	14.6%

TLD distribution (top 16 of 16)

com — 81 (78.6%)

co.uk — 6 (5.8%)

org — 2 (1.9%)

com.au — 2 (1.9%)

ie — 1 (1.0%)

com.mx — 1 (1.0%)

care — 1 (1.0%)

ch — 1 (1.0%)

be — 1 (1.0%)

nl — 1 (1.0%)

law — 1 (1.0%)

it — 1 (1.0%)

in — 1 (1.0%)

net — 1 (1.0%)

com.ar — 1 (1.0%)

fr — 1 (1.0%)

Frequently asked questions

How many domains use Bullhorn?

103 domains in the Tranco top-1M use Bullhorn as their email service provider (ESP) as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.

What is Bullhorn's market share?

Bullhorn holds 0.02% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-13). The number is recomputed every day.

What are the biggest alternatives to Bullhorn?

The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-07-13).

Largest email service provider (ESP)s in this category

Amazon SES (6.21%) · SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.86%) · Mailchimp (3.69%) · Mandrill (3.36%) · HubSpot (3.18%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.80%)

ESP / mailing services portfolio → · Full daily report →

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Domain sample (top 100 by Tranco rank)

kornferry.commscdirect.comefinancialcareers.comcae.comkellyservices.comirco.commanpower.frsandyou.co.ukdayzim.comdhigroupinc.commanpower.comavenga.comepiqglobal.commanpower.itexclusivehouseholdstaff.comspherion.comairswift.comapexsystems.combrunel.netrandstad.com.arpridestaff.comfujitsu.com.auirissoftware.comvidaxl.com.audavies-group.comhudson.combbsi.comelwoodstaffing.comthemomproject.comapexsystemsinc.comcrosscountry.cominterimhealthcare.comoningroup.comtrinityconsultants.comfusionmedstaff.comtrilliumstaffing.comnorthhighland.comstaffline.co.ukbrookstreet.co.ukbrq.comclueylearning.combbsihq.comgideontaylor.comexperis.comkevala.caregdt.comoxfordcorp.comkldiscovery.compropharmagroup.commanpower.bevaco.combuchanan.combrainhunter.comkellyocg.comrcmt.comeliassen.compdstech.comchghealthcare.comgoodwillgreatermc.orgcellainc.comx-team.comalithya.comatlasnextwave.commanpowergroup.com.mxlinkstechnology.comwederm.comaghires.comjobvalley.commanpower.nlsoliant.comforcebrands.comsystemone.comabcconsultants.inlocatealocum.comprepaypower.ietransforce.comprosperoteaching.comwarrenaverett.comyoh.comhelloezra.comallianceoneinc.commanpower.chtulsaremote.commanpower.co.uksolidsolutions.co.ukproclinical.combluestonesg.comcatalay.comcoremedicalgroup.comdietitiansondemand.comdiversejobsmatter.co.ukedustaff.orgelevate.lawgrafton.comirwinandcolton.comkimco.comkinze.comlloydandcowan.comnscstaffing.comscionstaffing.com

Showing 100 of 103 domains.