TL;DR. For decades, event sponsors have invested five and six figures in a presence at a major show, then walked out with a CSV. By the time that spreadsheet reaches their CRM, the context that actually moved deals has gone. A new wave of platforms is closing that loop. Three of them, taking three very different routes, are worth understanding now.
Most enterprise events end on a Friday. The Monday after, somewhere in a marketing operations team, a CSV arrives. By Tuesday it has been reformatted. By Wednesday it has been uploaded to Salesforce or HubSpot as a list of event attendees. By Thursday a sales rep is staring at a row that says X, Y, Z attended your booth, with no record of who they spoke to, what was said, or which accounts the event actually moved.
The leak is not in the scan. It is in the translation between the room and the CRM. That distinction has become the most interesting problem in event tech, because the tools now appearing to solve it are not all coming from the same place.
For an event of two thousand attendees with twenty sponsors, the back-of-the-envelope is sobering. At an average sponsorship spend of $25,000 to $50,000 per partner, that is $500,000 to $1m of marketing budget concentrated in a single room. Renewal of those packages does not depend on whether the event was good. It depends on whether each sponsor’s CFO can connect the line item to pipeline. A spreadsheet does not make that connection. Nothing about the surrounding stack does either.
What is the relationship layer, and why is it appearing now?
The relationship layer sits between the event platform and the CRM, capturing context that neither has been built to hold. It records who introduced whom, which conversations led to a follow-up, and how each touchpoint maps to pipeline. It is appearing now because AI agents acting on CRM data alone are working from half the picture, and marketers can finally see the gap.
The technical condition for it has changed too. MCP, the Model Context Protocol, makes it possible for a vendor to deliver attribution into a customer’s stack without ever connecting to the CRM directly. That changes the procurement conversation. An event tool that needs CRM access has historically faced months of security review. A tool that delivers signal through the customer’s own AI faces a configuration step. For marketers who have spent years waiting for IT to greenlight integrations, that shift is not cosmetic.
Which three companies are closing the loop, and how do they differ?
Three companies are coming at the same gap from very different angles. heyBTW addresses the post-event pipeline question. Boost.Express addresses the in-event advertising question. Premagic addresses the post-event brand exposure question. Each one is solving for a different definition of what a sponsor is paying for in the first place.
I have spent the past month in conversations with all three. The most useful way to understand the category is to read each one against the type of proof their target sponsor needs.
heyBTW: the post-event pipeline angle. Founded by Ben Roodman, who spent eight years at AppsFlyer in attribution and partnerships before building this, heyBTW positions itself as the relationship layer for B2B. The product gives each sponsor a scoped, real-time view of the slice of attendee data their tier includes, with attribution wired through to their own CRM. Sponsors can see which target accounts attended, which relationships turned into pipeline, and how their event spend maps to revenue.
The architecture is deliberate. heyBTW does not try to replace the event platform or the CRM. It connects to the event platforms and CRMs each side already uses. Pricing is unusually transparent for enterprise event tech: a Free tier where partners always join free, a Growth tier at $149 per month, and Enterprise pilot programmes from $500 to $1,000 per month, with Sponsor Mode accessible across plans. The defensibility argument is that the data itself is earned, not bought, and only exists because two companies chose to collaborate.
Boost.Express: the in-event advertising angle. Founded by Danis Nova, Boost.Express treats the event organiser’s first-party audience data as a media asset and lets exhibitors run targeted ad campaigns against it. Exhibitors publish landing pages on the event’s own domain and serve attendees personalised ads before, during and after the show. Audience segments are built from attendee role, intent and other registration data, gathered with attendee consent.
For organisers, the model is a revenue share with no upfront cost. For exhibitors and sponsors, it inverts the usual sponsorship logic. Rather than buy presence and hope for incidental attention, they buy precise reach against an audience that has already raised its hand for the show. HLTH and other large enterprise events have adopted it as their official advertising partner. The minimum exhibitor budget is $200, which puts it within reach of smaller exhibitors as well as headline sponsors.
Premagic: the post-event brand exposure angle. Founded by Anup Mohan, Premagic addresses a different definition of sponsor value: organic reach beyond the room. Its AI photo distribution uses facial recognition to deliver personalised galleries to each attendee, with sponsor branding integrated into the gallery experience. In-gallery video and static ads, branded watermarks and social sharing prompts turn each attendee into a distribution channel for sponsor exposure long after the event has closed.
The platform reports more than 700,000 events powered to date and a facial recognition accuracy of 99.9%. The mechanism that matters is the conversion of attendee enthusiasm into measurable sponsor interaction. For a brand sponsor whose package is more about awareness than pipeline, that data, impressions, geographic reach, downloads and shares, is harder to ignore than a logo on a backdrop.
Where do the established platforms sit in all of this?
Cvent, Bizzabo, Stova, Rainfocus and Swoogo own the capture surface, and that surface is where exhibitor and attendee trust lives. None of the three companies above is trying to replace it. Each one positions itself as a layer underneath, accepting webhooks, reading forms and increasingly reading and writing through MCP. The capture surface took years to earn, and is not theirs to take.
That is the right strategic answer for category formation. Co-marketing and sponsorship were never going to be solved inside a single platform, because no two partners share a tech stack. The work has to flow across two CRMs, two event platforms, and two definitions of a qualified lead. The platforms that own a stack on each side have a structural disincentive to build a layer that bridges the gap. Independent layers are filling that space, and the platforms benefit from richer signal flowing back through their own integrations.
What does this mean for the smaller exhibitor?
The frameworks scale down. A company running four or five events a year does not need 25 programmes’ worth of pattern data to extract value, but it does need to know which event mattered, why, and what to do differently next time. The shape changes from breadth to precision.
heyBTW‘s argument for smaller exhibitors centres on regional expansion, account mapping ahead of executive dinners, and customer experience activations such as a suite at a sporting event. Boost.Express makes its case through a low minimum budget and the ability to test campaign performance event by event. Premagic makes its argument through reach amplification on a per-event basis, with social shares and impressions captured at attendee level.
The common thread is that none of these tools requires the smaller exhibitor to abandon the event platform they already trust. They sit alongside Luma, Splash, Zuddl, Cvent and the rest, and add the loop that the platform itself is not built to close.
What changes when AI agents enter the conversation?
The promise of agents inside event platforms is real but bounded. The Cvent agent only sees what Cvent sees. The Salesforce agent only sees what Salesforce sees. Events almost always cross both, plus the partner running the booth or co-hosting the panel. No platform-specific agent is going to connect those rooms back to revenue on its own.
The MCP-first approach reshuffles that picture. An event marketer can ask Claude, ChatGPT or an internal copilot a question such as which sponsors got pipeline from last quarter’s roadshow, and get an answer that draws on cross-company event signal joined to the customer’s own CRM data inside the customer’s own stack. The vendor never sees the pipeline. The procurement conversation moves from another integration to a configuration step.
That is a meaningful change for marketers who have spent years waiting for security to approve event tech. It is also the strongest reason to take the relationship layer seriously now rather than wait for the platforms to catch up. The platforms will catch up, but they will catch up inside their own walls. The relationship layer is being built to live across them.
Where does this go next?
Sponsorship renewal is the metric that decides the future of every B2B event. Sponsors are already making renewal decisions on gut feelings and partial spreadsheets. The companies in this piece are offering different definitions of proof. The smart organiser does not pick one and dismiss the others. The smart organiser thinks about which type of proof each sponsor in each tier actually needs, and matches the layer to the package.
That is a more honest conversation about value than any of us have been having until very recently. It also happens to be a better story to tell when next year’s renewal email goes out.
Frequently asked questions
What is the relationship layer in event tech?
A category of tools that sits between the event platform and the CRM, capturing context about who attended, who introduced whom, and how each touchpoint maps to pipeline. The category is forming now because AI agents acting on CRM data alone work from half the picture.
Does heyBTW replace my event platform?
No. heyBTW positions itself as a layer underneath the event platform and the CRM. It integrates with Luma, Splash, Zuddl and others by reading forms, accepting webhooks, and reading and writing through MCP.
How does Boost.Express differ from a standard advertising platform?
Boost.Express uses event organisers’ first-party audience data, gathered with attendee consent, to target exhibitor advertising. Exhibitors run campaigns on the event’s own domain rather than on a generic ad network, which is why the targeting is sharper than open-web alternatives.
What does Premagic do for sponsors specifically?
Premagic distributes personalised AI-curated photo galleries to each attendee, with sponsor branding, in-gallery ads and social sharing prompts integrated. For brand-led sponsorship packages where awareness matters more than direct pipeline, it converts the event experience into measurable post-event reach.
What is a typical sponsorship spend that needs proving?
Enterprise sponsorship packages commonly run from $25,000 to $50,000 per partner for a major show, with headline placements running considerably higher. Renewal decisions are made on whether that line item can be connected to pipeline, advertising performance or branded reach, not on whether the event itself was good.
What is MCP, and why does it matter for event tech procurement?
MCP, the Model Context Protocol, lets a vendor deliver signal into a customer’s AI tools without connecting to the customer’s CRM directly. That removes the months-long security review that has historically slowed event tech adoption inside large organisations.
