Updated Nov 1, 2026 · events checked weekly, newsletters and podcasts daily · how we get this data
Company · On all three
Customer.io
The events, newsletters and podcasts Customer.io sponsors, with dates and sources.
Customer engagement platform
“Fueled by first-party data, create personalized journeys across all channels with our AI-powered customer engagement platform.”
Where it ran, last 12 months
On 2 event sponsor lists, with booth space at 1 event, 14 newsletter ads in 6 newsletters and 7 podcast ads in 1 podcast.
Based on 3,084 newsletters, 5,221 podcasts and 2,177 event sponsor lists.
Up against
Where its rivals ran
35 outlets with a rival on record and nothing on record for Customer.io.
| Outlet | Rivals on record |
|---|---|
| Shoptalk Europe | Klaviyo, Braze |
| Shoptalk Spring | Klaviyo, Braze |
| Pivot | Klaviyo |
Last 24 months
Each square is a month. Darker means more sponsorships that month. Events sit in the month the event usually starts. We read many more newsletters from September 2026 and podcasts from October 2026, marked with a line, so later squares run darker. That alone doesn't mean a company bought more.
Recent ad copy
| “Customer.io - Send smarter messages using your product data”Product Growth, Oct 20 |
| “Sponsored By Customer.io”Morning Brew, Sep 18 |
| “Heard, chef.”Marketing Brew, Sep 11 |
| “Don’t shoot the messaging.”Marketing Brew, Sep 9 |
| “The Customer Engagement Platform Founders Trust”TLDR Founders, Jun 15 |
| “Customer.io —The customer engagement platform for human messaging”The Skip, May 20 |
Connections Where Customer.io shows up.
Events2 sponsor lists, 1 with booth space, 0 as a partner. Biggest lists first, counting the level held. The bar shows how many companies are on each list.3
NewslettersMost ads first. Bar: ads we’ve found.6
- Product Growth7 adsAug 2026 – Oct 2026
- Marketing Brew2 adsin Sep 2026
- The Skip2 adsApr 2026 – May 2026
- Morning Brew1 adin Sep 2026
- TLDR Founders1 adin Jun 2026
PodcastsMost ads first. Bar: ads we’ve found.1
Full record Click a heading to sort.
| Web Summit Rio | Listed | 2026 · read Oct 25 ↗ Report | ||
| Twilio SIGNAL | Listed | 2026 · read Oct 17 ↗ Report | ||
| SXSW Expo | Exhibitor | 2025 · read Oct 25 ↗ Report | ||
| No rows match. Clear the search or filters. | ||||
- Sponsor level
- The level the organizer lists Customer.io under. Where the event names two or more levels, its place in the organizer’s own order on the page. Exhibitor: booth space. Partner: media or community partner, not counted as a sponsor.
- On the list
- Every company on that edition’s list, a measure of its size.
- Source
- The organizer’s page, the edition (or the year we read it) and the day we read it.
| Product Growth | 7 ads | Oct 2026 | 2026 · read Oct 20 ↗ Report | |
| Marketing Brew | 2 ads | Sep 2026 | 2026 · read Sep 11 ↗ Report | |
| The Skip | 2 ads | May 2026 | 2026 · read May 20 ↗ Report | |
| Morning Brew | 1 ad | Sep 2026 | 2026 · read Sep 18 ↗ Report | |
| TLDR Founders | 1 ad | Jun 2026 | 2026 · read Jun 15 ↗ Report | |
| The Code | 1 ad | Feb 2026 | 2026 · read Feb 11 ↗ Report | |
| No rows match. Clear the search or filters. | ||||
- Ads found
- Ads for Customer.io we’ve found there.
- Sponsors there
- Every sponsor we’ve found in that newsletter, a measure of its size.
- Source
- The issue we read the latest ad in, and its date.
| The Dave Gerhardt Show (from Exit Five) | 7 ads | Oct 2026 | 2026 · read Oct 30 ↗ Report | |
| No rows match. Clear the search or filters. | ||||
- Ads found
- Ads for Customer.io we’ve found there, from show notes and transcribed ad reads; ads read only in the audio may be missing.
- Source
- The episode (or the show’s site when the episode has no page) we read the latest ad in, and its date.
Recent ad copy
| “Customer.io - Send smarter messages using your product data”Product Growth, Oct 20 |
| “Sponsored By Customer.io”Morning Brew, Sep 18 |
| “Heard, chef.”Marketing Brew, Sep 11 |
| “Don’t shoot the messaging.”Marketing Brew, Sep 9 |
| “The Customer Engagement Platform Founders Trust”TLDR Founders, Jun 15 |
| “Customer.io —The customer engagement platform for human messaging”The Skip, May 20 |
Open source
Sponsors 6 open-source maintainers on GitHub, including LabStack LLC, OpenCore.
Foundation members from each foundation’s own member list; CNCF and other Linux Foundation tiers from their landscapes (CNCF Landscape, CC BY 4.0). GitHub: public sponsorships only; maintainers who are people are counted, not named.
Next stops
Alerts
These are the ads and sponsor listings we’ve found. They don’t show spend. If a channel is empty, we haven’t seen Customer.io there, which doesn’t mean it doesn’t buy there. Updated Nov 1, 2026. How we read sponsor lists. Something wrong? Tell us.