Best Email & SMS Marketing Agencies for Ecommerce (2026)

Quick answer: The best email and SMS marketing agency for an ecommerce brand is one that runs both channels under a single, coordinated program — so flows, segments, and timing work together instead of competing. Strong options include dedicated done-for-you agencies like Excelohunt, premium lifecycle firms like Chronos Agency, full-service teams like InboxArmy, focused Klaviyo specialists like Optimite, and marketplaces like Mayple. This guide compares the best email and SMS marketing agencies by platform, ICP, and pricing so you can shortlist by fit.

Key takeaways

• The best email and SMS marketing agency runs both channels together, not as siloed services that double-message your customers.
• Platform fit matters — Klaviyo now unifies email + SMS, while some agencies pair Klaviyo email with Postscript or Attentive for SMS.
• Pricing spans a wide range — from Chronos’ ~$10k/mo minimum to marketplaces from ~$1,280/mo and transparent mid-market retainers.
• Group by use case: dedicated done-for-you, premium lifecycle, production capacity, focused email, or marketplace.
• SMS is usually priced on volume on top of the management fee — always clarify how each agency handles it.

For ecommerce brands, email and SMS together drive a large share of retention revenue — but only when one team coordinates them. This is an honest comparison of the best email and SMS marketing agencies, grouped by who they genuinely suit. Excelohunt is included alongside the named competitors; the selection criteria do the ranking.

Why combine email + SMS under one agency

Running email and SMS under one agency keeps messaging coordinated, so customers get the right channel at the right moment instead of overlapping blasts. When two teams own the two channels, you get cannibalized sends, inconsistent segmentation, and duplicated discounts. A single agency unifies the strategy: SMS handles urgency and time-sensitivity, email carries depth and storytelling, and both share the same customer data and suppression logic.

We weighed every agency below on four criteria:

• True email + SMS coordination — one strategy, shared data, not two silos.
• Platform fit — Klaviyo’s unified email + SMS, or Klaviyo + a dedicated SMS tool.
• ICP match — the brand size and stage each agency is built for.
• Pricing transparency — published vs custom, plus how SMS volume is billed.

We only state public or third-party-sourced pricing; otherwise we say “custom / on request.” All details reflect publicly available information as of July 2026.

The coordination point deserves a concrete example, because it’s the whole reason to combine the channels. Picture a customer who abandons a cart at 9pm. A coordinated program might send an email abandoned-cart reminder first, then — if there’s still no purchase — follow up with a short SMS nudge the next morning, while suppressing them from the day’s promotional email so they’re not hit twice. Two siloed teams can’t orchestrate that: the SMS team doesn’t know the email already went out, the email team doesn’t know an SMS is queued, and the customer gets a messy, overlapping experience. One agency, one data source, one suppression logic, and the same moment becomes a clean, well-paced sequence. That orchestration — not the individual messages — is where combined email + SMS earns its keep.

Comparison table

Shortlist two or three agencies by stage and channel needs from this table, then read their sections below. It summarizes ICP, channels, and what’s publicly known about pricing.

Agency	Best for	Channels	Pricing (as known)
Excelohunt	Mid-market DTC done-for-you	Email + SMS	Published / transparent
Chronos Agency	Scaling & larger DTC	Email + SMS + retention	~$10k/mo min (Clutch)
InboxArmy	Full-service production	Email (+ SMS)	Custom / on request
Email Uplers	Production & white-label	Email (SMS varies)	Custom / on request
Optimite	Focused Klaviyo email	Email	Custom / on request
Mayple	Matched expert flexibility	Varies by expert	From ~$1,280/mo
Full-funnel retention agencies	Strategy-led brands	Email + SMS + CRO	Custom / on request
SMS-led specialists	SMS-first brands	SMS (+ email)	Custom / on request
Boutique DTC specialists	Niche / vertical brands	Email + SMS	Custom / on request

The sections below expand on the named agencies and categories so you can match a model to your brand.

The best agencies

Each agency gets a fair, concise section: what it’s best for on email + SMS, its ICP, and its pricing model as publicly known.

1. Excelohunt — mid-market DTC, done-for-you email + SMS

Excelohunt is a Klaviyo Partner running fully managed email and SMS together for DTC and ecommerce brands at roughly $40k+/mo. A dedicated team owns strategy, build, and reporting across both channels, with transparent published pricing and a 3x ROI focus across 500+ brands in 26+ verticals. Best for mid-market brands that want coordinated email + SMS from one accountable team. See our pricing and case studies; founder Ravinderpal Singh leads the work.

2. Chronos Agency — premium scaling and larger DTC

Chronos is an established lifecycle and retention firm spanning email, SMS, and broader retention strategy as one program. Per its Clutch profile, it works to an approximate $10k/mo minimum and ~$100–149/hr, positioning it for scaling and larger DTC brands. Best for brands wanting one premium partner to own the full email + SMS lifecycle at scale. Per chronos.agency.

3. InboxArmy — full-service production

InboxArmy is a full-service email agency with broad production capability across design, coding, automation, and multiple platforms, with SMS available as part of broader engagements. ICP skews to brands needing reliable, high-volume execution. Pricing is custom / on request. Best for brands wanting a broad production partner.

4. Email Uplers — production capacity and white-label

Email Uplers is an email production shop with a large managed team, widely used for white-label work. Its core strength is email production; SMS scope varies by engagement. Pricing is custom / on request. Best for brands or agencies that own strategy and need execution muscle on email.

5. Optimite — focused Klaviyo email execution

Optimite is a Klaviyo email agency with a tighter, execution-led focus. Per optimite.ai, it concentrates on Klaviyo email; pricing is custom / on request. Best for brands whose primary need is sharp email execution, with SMS handled elsewhere or added later.

6. Mayple — matched expert via a marketplace

Mayple is an expert marketplace that vets and matches you with a marketer, adding oversight and reporting. Per mayple.com, plans start from roughly $1,280/mo. Best for brands wanting a single screened expert; email + SMS coordination depends on the matched expert’s skill set.

7. Full-funnel retention agencies — strategy-led brands

Some agencies pair coordinated email + SMS with CRO and retention strategy for brands that want thinking across the funnel. ICP skews mid-to-larger DTC. Pricing is custom / on request, usually retainer-based. Best for brands ready to invest in strategy, not just channel execution.

8. SMS-led specialists — SMS-first brands

SMS-led specialists build the program around SMS first, layering email in support — useful for brands whose audience responds strongly to text. ICP varies. Pricing is custom / on request, with SMS volume billed on top. Best for SMS-first brands, though you’ll want to confirm email depth isn’t an afterthought.

9. Boutique DTC specialists — niche and vertical brands

Boutique specialists go deep on a single vertical — beauty, supplements, apparel — coordinating email + SMS for that niche. ICP is usually smaller, brand-aligned teams. Pricing is custom / on request. Best for brands that value vertical expertise; check capacity and continuity first.

Platforms and integrations

The platform stack shapes how well email and SMS coordinate, so confirm it before you sign. Two common setups:

• Klaviyo unified (email + SMS in one platform): shared profiles, flows, and suppression across both channels, which makes coordination simplest. Most DTC-focused Klaviyo agencies — including Excelohunt — run this way.
• Klaviyo email + dedicated SMS tool (Postscript, Attentive): some agencies pair Klaviyo email with a specialist SMS platform. This can add SMS-specific features but requires careful integration so the two channels share data and suppression.

Either can work; the risk is a setup where email and SMS don’t talk to each other and customers get double-messaged. Ask each agency exactly how the two channels share data, segments, and quiet hours. Our Klaviyo flows guide covers how unified flows should be built, and email deliverability best practices explains the hygiene that protects both channels.

SMS also carries compliance and cost considerations that email doesn’t, and a good agency manages both. On compliance, SMS requires explicit consent, clear opt-out handling, and respect for quiet hours and regional rules — getting this wrong risks fines and carrier filtering, not just annoyed customers. On cost, SMS is billed per message (and MMS costs more than SMS), so send strategy directly affects your bill in a way email’s flatter pricing does not. The best email + SMS agencies treat SMS as a precision instrument: reserved for high-intent, time-sensitive moments where its immediacy earns the per-message cost, rather than a second broadcast channel to blast. When you evaluate agencies, ask how they decide what goes to SMS versus email — the answer reveals whether they understand the channel’s economics or just bolt it on.

Setup	Coordination	Trade-off
Klaviyo unified	Easiest — one platform, shared data	Klaviyo’s SMS feature set
Klaviyo + Postscript/Attentive	Strong if integrated well	Two tools to sync carefully
Separate email & SMS teams	Hardest — risk of silos	Coordination overhead

Best by need

Match your situation to a use case, then shortlist the agencies that fit.

• Mid-market DTC (~$40k–$500k/mo) wanting coordinated email + SMS done-for-you: a dedicated Klaviyo agency like Excelohunt.
• Scaling/larger DTC wanting full lifecycle at scale: Chronos Agency or a full-funnel retention firm.
• You own strategy and need email production muscle: Email Uplers or InboxArmy.
• SMS-first brand: an SMS-led specialist.
• Focused email only (SMS later): Optimite.
• You want one matched expert with oversight: Mayple.

No single agency wins every row — coordination and fit matter more than brand name. For a deeper view on returns, see email marketing ROI for ecommerce, and browse case studies to see real outcomes.

A final word on sequencing the two channels into your roadmap. If you’re early and email isn’t yet dialed in, it’s usually wiser to get email performing first and add SMS once the foundation is solid — SMS amplifies a good program but won’t rescue a weak one. If email is already strong and you’re leaving the immediacy of text on the table, adding coordinated SMS is often the highest-leverage next move. Either way, choosing an agency that runs both channels — even if you start with one — means you won’t have to re-platform or re-hire when you’re ready to expand. That continuity is a quiet but real advantage of picking a true email + SMS agency from the outset.

What a coordinated email + SMS program includes

A genuinely coordinated program isn’t just “email plus some texts” — it’s a shared strategy where each channel does the job it’s best at. Here’s what the two channels should own in a well-run setup:

Channel	Best at	Typical uses
Email	Depth, storytelling, design	Newsletters, education, full campaigns, detailed flows
SMS	Immediacy, urgency, high open rates	Time-sensitive offers, restock alerts, shipping/order nudges
Both (coordinated)	Right message, right moment	Cart and browse recovery, launches, VIP and winback sequences

The point is division of labor, not duplication. Email carries the brand and the detail; SMS carries the moments where speed matters; and the agency orchestrates them so a customer never gets the same offer twice across both channels in the same window. When you evaluate agencies, ask them to walk through a single customer journey — say, a launch or a cart recovery — and describe exactly which channel fires when and why. An agency that runs both channels well will narrate this naturally; one that treats them as separate products will struggle.

Common email + SMS mistakes to avoid

Most problems with combined programs come from a few predictable mistakes — screen prospective agencies against them.

• Treating SMS as a second broadcast channel. Blasting promotions over text burns through opt-outs and per-message budget fast. SMS should be reserved for high-intent, time-sensitive moments.
• No shared suppression. If email and SMS don’t share suppression and quiet-hours logic, customers get double-messaged. This is the single most common silo failure.
• Ignoring compliance. SMS consent, opt-out handling, and regional rules are non-negotiable; a careless agency exposes you to fines and carrier filtering.
• Letting one channel lag. Some agencies are strong on email and treat SMS as an afterthought (or vice versa). Confirm depth on both before signing.
• Vanity reporting. As with email-only, insist on revenue-based reporting across both channels, not opens and click-through rates.

Run every shortlisted agency past these. The best email and SMS marketing agency for you is the one that coordinates the two channels cleanly, respects the economics and compliance of SMS, and reports on revenue — matched to your brand’s stage.

Frequently asked questions

Which agency is best for email and SMS together?

The best agency for email and SMS together is one that runs both channels under a single coordinated strategy with shared data. Mid-market DTC brands often suit dedicated done-for-you agencies like Excelohunt; scaling brands suit premium lifecycle firms like Chronos. Match the agency to your stage and confirm the channels are genuinely unified.

Should email and SMS be run by one agency?

Usually yes. One agency keeps flows, segments, suppression, and timing coordinated, so customers aren’t double-messaged or sent conflicting offers. Splitting the channels across two teams tends to create silos and overlap. If you do split them, insist the platforms share data and quiet-hours logic.

What platforms do they use?

Many DTC-focused agencies run Klaviyo’s unified email + SMS, which keeps both channels on one platform with shared profiles and suppression. Others pair Klaviyo email with a dedicated SMS tool like Postscript or Attentive. Either works if integrated well; ask each agency how the channels share data before committing.

How is SMS priced?

SMS is typically billed on message volume by the platform, on top of the agency’s management fee — so total cost depends on list size and send frequency. Agencies vary in whether they pass platform costs through or bundle them. Always clarify how each agency structures SMS pricing and whether volume costs are included.

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About the author

Ravinder is the founder of Excelohunt, a Klaviyo-focused email & SMS agency that helps ecommerce brands grow revenue from email and SMS.

Want coordinated email + SMS? Get a free Klaviyo audit or see how we run email for brands.

All trademarks are the property of their respective owners. Excelohunt is not affiliated with or endorsed by the companies named on this page. Comparisons reflect publicly available information as of July 2026.