Something is happening beneath the polished surface of the email-SMS platform rivalry, and it’s making founders and agency operators deeply uncomfortable. Multiple sources inside DTC agency circles — including leadership at growth shops that collectively manage north of $400 million in annual client ad spend — tell Ecommerce Times that Klaviyo has been running what one source described as a “systematic extraction” of mid-market and enterprise account executives from Attentive, the SMS-first platform that has spent the last three years aggressively chasing Klaviyo’s email dominance from the other direction.
The alleged recruiting push, which sources say accelerated sharply between January and April 2026, reportedly targeted Attentive reps with established books of business in the health and wellness, apparel, and home goods verticals — precisely the Shopify-native categories where the two platforms overlap most aggressively on feature parity.
“It’s not subtle. We had two clients get cold-called by the same Klaviyo enterprise rep within a week of their Attentive account manager leaving. That’s not coincidence — that’s a playbook,” said one agency founder who asked to remain anonymous but whose firm manages retention programs for several nine-figure DTC brands.
What Is Klaviyo Allegedly Trying to Accomplish With This Hiring Push?
Sources close to the matter say the alleged talent acquisition isn’t purely defensive. Klaviyo’s SMS product, which the company has been building out aggressively since its 2023 IPO, has reportedly struggled to close the gap with Attentive on deliverability rates and conversational SMS features in the enterprise tier. Unconfirmed internal benchmarks circulating among agency operators suggest Klaviyo’s SMS click-through rates trail Attentive by as much as 18% in the $50M-and-above revenue band for apparel brands — a gap that no amount of dashboard consolidation fully papers over.
By recruiting Attentive’s most relationship-heavy sellers, Klaviyo allegedly gets something more valuable than headcount: it gets institutional knowledge of Attentive’s largest contract renewal timelines, pricing structures, and client pain points. Sources describe this as a form of competitive intelligence gathering that, while technically legal, sits in ethically murky territory.
Attentive CEO Amit Jhawar, who took the helm in 2023 after founder Brian Long stepped back, has not commented publicly. But sources reportedly close to Attentive’s executive team say the company has already initiated legal review of at least three departed employees’ non-solicitation agreements. Ecommerce Times could not independently verify whether any formal legal action has been filed.
Which Brands Are Caught in the Middle of This Platform Dispute?
Operators running dual-stack setups — Klaviyo for email, Attentive for SMS — are reportedly experiencing unusual levels of account team disruption. Sources say the instability is particularly acute among brands in the $10M to $75M annual revenue range, where both platforms compete most aggressively on pricing and where account manager relationships often determine renewal decisions more than feature lists.
- At least two operators in the pet supplements space reportedly had their Attentive account managers replaced twice within a six-month window, with one brand’s head of retention describing the situation as “trying to run a Q2 email-SMS strategy with a new account team every quarter.”
- A Shopify-native apparel brand doing approximately $40M in revenue reportedly received competing “consolidate to one platform” pitches from both Klaviyo and Attentive within the same 30-day window, with Klaviyo allegedly offering a 22% discount on its SMS tier if the brand migrated off Attentive entirely.
- Several agency operators say their Attentive client dashboards have shown anomalous data gaps in April and May 2026, which some attribute to backend instability during a reported internal restructuring — though Attentive has not confirmed any such changes.
“Our clients don’t care about the platform war. They care that their abandoned cart flow fired correctly on a Sunday night. When account teams churn, the first thing that breaks is institutional context — who approved what suppression list, why that segment was excluded,” said Cody Plofker, CMO at Jones Road Beauty, in a conversation at a recent DTC operators dinner in New York that sources say touched on the broader platform instability concern.
Is Attentive’s Enterprise Expansion Strategy Now at Risk?
The timing of the alleged poaching is particularly sensitive for Attentive, which has been in the midst of what sources describe as a deliberate push upmarket into enterprise retail accounts — a segment where Klaviyo has historically had deeper footholds through its Salesforce and BigCommerce integrations. Attentive reportedly brought on several enterprise sales leaders from Adobe and Salesforce Marketing Cloud in late 2025 precisely to accelerate this push.
If Klaviyo has indeed extracted Attentive’s mid-market account executive layer, the damage would be structural: Attentive’s enterprise ambitions rely partly on migrating its most successful mid-market relationships upward over 18-to-24-month cycles. Disrupting that relationship continuity at the mid-market level could create a gap in the pipeline that takes years to repair, sources say.
Industry analyst Andrew Lipsman, who covers retail media and owned-channel marketing, noted in a recent newsletter post that the email-SMS convergence war is entering what he called a “consolidation forcing function” phase — where platforms can no longer grow primarily through new merchant acquisition and must instead win by displacing the other platform entirely within existing accounts. That dynamic, he argued, makes aggressive competitive tactics increasingly likely across the board.
How Are Performance Agencies Responding to the Instability?
Several growth agencies that hold reseller or preferred-partner agreements with both platforms say they are quietly reviewing their partnership structures. Sources at two mid-sized agencies — both of which hold Klaviyo Master Partner status — say they’ve received informal pressure from Klaviyo’s partner team to “lean into” SMS consolidation conversations with clients who currently run dual-stack setups.
“Klaviyo has been very direct with us: they want to be the only platform in the stack. That’s not inherently wrong — consolidation can genuinely reduce complexity. But when they’re asking us to initiate those conversations right as a competitor’s account team is in flux, it starts to feel coordinated,” said the head of retention at a New York-based Shopify agency who requested anonymity to protect a partner relationship.
The alleged pressure on agency partners raises a separate concern in the operator community: whether platform-driven consolidation pushes are being designed around the platforms’ revenue interests rather than brand performance outcomes. In a retention marketing environment where Klaviyo-managed brands reportedly average $42 in revenue per email sent (according to Klaviyo’s own Q1 2026 benchmarks) but where SMS ROI remains harder to isolate from email halo effects, the “one platform” pitch is difficult to evaluate objectively.
- Agencies say Klaviyo’s alleged offer structures for SMS migration have included 90-day free SMS trials, guaranteed onboarding support, and in some cases co-marketing budget — terms that are reportedly more aggressive than anything Klaviyo offered as recently as 18 months ago.
- Attentive, for its part, has reportedly responded with extended contract lock-ins and enhanced SLA guarantees for brands willing to commit to 24-month agreements.
- At least one major agency reportedly paused new SMS platform recommendations entirely for 60 days while its leadership assessed the landscape — an unusual step that signals how unsettled the environment has become.
What Does This Mean for DTC Founders Making Platform Decisions Right Now?
For operators actively evaluating their owned-channel stack heading into Q3 and the early BFCM planning window, the alleged drama creates a genuinely difficult decision environment. Sources say the instability has pushed several brands toward a wait-and-see posture on platform consolidation — which carries its own risk, since dual-stack setups introduce data fragmentation that can blunt the performance of both platforms.
Klaviyo declined to comment for this story. Attentive did not respond to a request for comment by press time. Neither company has made public statements addressing the alleged recruiting activity or the legal review reportedly underway.
What is clear, regardless of which version of events proves accurate, is that the email-SMS convergence war has moved from a features-and-pricing competition into something considerably messier. Sources across the agency and operator community describe a market where the platforms’ competitive desperation is starting to generate instability that ultimately lands on the brands — and the founders — who can least afford it heading into the second half of 2026.
“At some point the platform that wins is the one that stops making their war our problem,” said one DTC founder, summarizing a sentiment that appeared repeatedly across conversations for this story. “We’re running businesses, not keeping score in someone else’s fundraising narrative.”
