Tinuiti

Key points

• Category: Agencies: eCommerce retention
• Pricing: Paid
• Best for: Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.
• largest independent performance agency, enterprise CRM/email
• Based in US

What Tinuiti is

Tinuiti is one of the largest independent full-funnel performance marketing agencies in the US, offering Email & SMS as one of its core service lines alongside paid search, paid social, Amazon/marketplaces, TV/streaming and creative. Its email and SMS practice, powered largely through Klaviyo, focuses on lifecycle engagement across the customer journey (lead activation, nurture, conversion, reactivation) with an emphasis on first-party data and privacy-conscious personalization.

Because Tinuiti operates at enterprise media-agency scale, its email/SMS work is typically bundled into broader account relationships spanning multiple channels, drawing on a large bench of strategists and its proprietary measurement tooling to connect email performance to overall media spend and attribution.

It sits in the agencies: ecommerce retention part of an email stack - klaviyo-led retention, lifecycle and sms teams for dtc brands. In practice it is the right pick when your priority is: brands looking for an agency partner for klaviyo-led retention and lifecycle work for dtc and ecommerce brands.

What it does well

The capabilities teams rely on most are largest independent performance agency, enterprise crm/email, based in us. Taken together these cover the day-to-day work in this category, and they are the features worth testing during a trial rather than reading about.

Tinuiti's scale as a full-funnel agency lets it tie email and SMS lifecycle strategy directly into paid media, streaming/TV and Amazon strategy under one roof, which suits large brands wanting single-agency coordination across channels.

In real use the strongest points people report are specialist team rather than a generalist marketing shop; hands-on execution: strategy, creative and campaign delivery.

Key features

• largest independent performance agency, enterprise CRM/email
• Based in US
• Specialist team rather than a generalist marketing shop
• Hands-on execution: strategy, creative and campaign delivery

Pricing tiers

Tinuiti is a paid product. Enterprise retainer pricing scoped to overall media budget and channel mix; not publicly published and negotiated per account.

Pricing pages move often, so confirm the current figures with the vendor before you budget. The number worth modelling is not the licence fee on its own but the cost per delivered email once bounces, suppressed contacts and spam-foldered sends are taken out.

Ideal customer profile

• Best fit: Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.
• Where it sits in the stack: Agencies: eCommerce retention - klaviyo-led retention, lifecycle and sms teams for dtc brands.
• Budget profile: Paid - suited to teams comfortable with this commercial model.
• Probably not for you if: retainer pricing - not a self-serve tool would block your team.

What it connects to

Tinuiti is commonly wired into Klaviyo, Meta Ads, Google Ads, TikTok Ads, Amazon Advertising, Data warehouses/CDPs and Attribution/analytics platforms. Check that the specific objects and events you rely on are covered, not just that a logo appears on the integrations page - shallow connectors are a frequent source of rework.

Where it falls short

No tool in this space is complete on its own. With Tinuiti the trade-offs to plan around are retainer pricing - not a self-serve tool; deliverability and sending reputation usually stay your responsibility. None of these are reasons to avoid it - they are the gaps another layer of your stack needs to fill.

Its size and full-funnel structure mean email/SMS is one line item among many services; brands seeking a boutique, email-only specialist with concentrated senior attention may find a smaller agency more focused.

A useful test before committing: send a real campaign through your intended setup, then check where it actually lands across Gmail, Outlook, Yahoo and your customers' corporate filters. Tooling that looks identical on a feature list often behaves very differently once reputation and authentication are involved.

The essentials

Category

Agencies: eCommerce retention

Pricing model

Paid

Vendor

tinuiti.com

G2 rating

Not listed

Best for

Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.

Works alongside Warmy

Yes - warm-up, placement, DMARC

How it fits a deliverability stack

Deliverability is decided by four things: the reputation of the sending domain and mailbox, the quality of the list, correct SPF, DKIM and DMARC authentication, and proof of where mail actually lands. Tinuiti covers part of that picture. The mistake most teams make is buying four separate products for those four jobs and still having no single place that tells them whether the last campaign reached the inbox.

Warmy runs warm-up, inbox placement testing, email verification and DMARC monitoring as one platform, which is why Tinuiti usually sits alongside it rather than against it: it keeps doing what it is good at, while reputation, placement and authentication are handled in one loop.

Deliverability is addressed within its broader ESP management and migration services as part of the email/SMS practice rather than marketed as a standalone offering.