Bellwether Intel
Which brands sponsor which newsletters, how much reach they buy and how often they come back, across every platform. Every placement is checked by two models and a shepherd.
Verified brands and newsletters only · Approved by hand · 853 newsletters monitored across every platform
Sponsor Intel
Live · refreshed hourly · last issue captured
Sponsors tracked
1,843
seen at least once
Newsletters monitored
853
across 28 categories
Placements detected
11,365
all time, ≥85% confidence
Avg sponsors / newsletter
9.3
rotation density
Most-placed sponsors · last 30 days
| Sponsor | Placements | Last seen |
|---|---|---|
| HubSpothubspot.com | 80 | today |
| Salesforcesalesforce.com | 55 | today |
| Incogniincogni.com | 49 | today |
| BDObdo.com | 46 | 2w ago |
| Atlassianatlassian.com | 42 | yesterday |
| AWSaws.amazon.com | 39 | today |
| Wispr Flowwisprflow.ai | 39 | today |
| Gartnergartner.com | 34 | today |
| Lambdalambda.ai | 31 | today |
| CDWcdw.com | 30 | 4d ago |
The 10 most-placed of 1,843 tracked sponsors over the last 30 days. Members see the full list, categories, reach and every newsletter each sponsor runs in.
Get accessWhere the data comes from
For every newsletter we track, we check every email it sends for sponsor placements. Every sponsor in Bellwether was seen in a real email. None of it is estimated, modelled or taken from a sponsor list.
Every placement comes from a real newsletter email, with the sponsor, the date it was sent and the newsletter it ran in.
A placement only appears once we are at least 85% confident it is real. Anything uncertain is settled by a person, not shown to you.
Counts, trends and last-seen dates refresh hourly, so what you see is this month’s market, not last quarter’s.
What the sponsor database tracks
The brands running in the newsletters we monitor, with the ads they ran and when.
Which newsletters each sponsor buys across, so you see the shape of a category rather than one title.
Audience behind each placement, so a sponsor’s spending pattern is legible rather than anecdotal.
Placements per sponsor and per newsletter over the last 7 or 30 days, and when each one was last seen.
Which categories are drawing more sponsors this month and which have gone quiet, so timing is a decision rather than a guess.
New sponsorships surface as we spot them, rather than landing in a report at the end of the month.
Everyone has a profile
Publishers use it to see who to pitch and how crowded a rival title is. Sponsors use it to see where their competitors run and what gets rebooked. Same data, two doors.
HubSpot
hubspot.com · Marketing & Growth · Cambridge, MA, US · founded 2006
Sponsored issues · 30d
80
7-day view available
Newsletters · 30d
18
7-day view available
Est. reach
7,534,200
from 18 of 23 newsletters with a known audience
Last seen
today
latest monitored issue with the sponsor detected
Detection activity · 30 days
80 placements
Live figures for the most-placed sponsor of the last 30 days, refreshed hourly.
Browse by category · top 9 of 28 · active sponsors, last 30 days
The 9 categories with the most active sponsors right now, out of 28 we track. Inside Bellwether, each one opens into this month’s most active sponsors and the newsletters they run in.
Who uses newsletter sponsor data
If you publish
If you sponsor
The catch
A marketplace only works when both sides can price and plan with the same information. We are paid a commission when a booking happens, so members who know the market are the business model, not a cost to it. That is why Bellwether is free, and why it stays free.
Questions
Yes. It is free for every member of the marketplace, publisher or sponsor, with no trial window and no seat count. Comparable sponsor-intelligence tools charge in the region of forty to two hundred dollars a month.
Because a marketplace only works when both sides can price and plan with the same information. We make money on commission when a booking happens, so better-informed members are the business model rather than a cost to it.
We monitor a set of newsletters and record the sponsorships that run in them. It is observed placement data (what actually ran, and when), not estimates modelled from traffic.
No. Bellwether comes with any account. Publishers tend to use it to decide who to pitch and what to charge; sponsors use it to check a newsletter’s history before booking.
No, and we would rather say so. Bellwether covers the newsletters we monitor, and that set grows over time. It is a real sample of the market, not a census of it.
Seeing which sponsors already buy in your category, how often they return and how much reach they are buying gives you a market reference point, instead of setting a rate from scratch and hoping.
Bellwether comes with every SponsorSheep account, whether you are listing inventory or buying it. It takes about five minutes to set up.
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