Sendloop

What Sendloop does

Sendloop is a cloud-based, self-service SaaS email marketing platform operated by Octeth, Inc., a US corporation founded in 2008 by Cem and Mert Hurturk. The company has accumulated 24+ years of email marketing domain expertise across its predecessor products (Octeth, founded 1999; Mailium, 2003; PreviewMyEmail, 2009; SenderSuite, 2011), which were either merged into or sold from the Sendloop platform (SenderSuite merged in 2015; PreviewMyEmail acquired by SMTP, Inc. in 2013). Sendloop targets small and medium businesses, digital agencies, high-volume senders, and charitable organizations with a tiered freemium-plus-subscription model — Free, Pro at $39/mo, High Volume at $235/mo, and custom Enterprise contracts — plus an affiliate program offering 40% recurring commissions and a white-label product line.

The platform's technology stack centers on a drag-and-drop email builder, marketing automation journeys, attribute- and activity-based segmentation, SMS marketing, webhooks, and a full-featured API, with 1,000+ third-party integrations delivered primarily through Zapier and native partnerships with Cleanify, Stripo, OptinMonster, SalesWings, and similar vendors. Operational footprint spans a San Francisco registered office and an Istanbul operations and data-processing center, with the platform localized into 10 languages and serving 36,000+ customers across 100-119+ countries. Product extensions include Sendloop Studio (agency multi-client management), Sendloop White Label (reseller infrastructure), and the Sendloop App Store (third-party extension marketplace), all unified under the Sendloop brand.

Sendloop's go-to-market combines a product-led growth motion (self-service website signup, free tier, no credit card required) with enterprise sales for high-volume senders (dedicated IP, deliverability consultancy) and a 40%-commission affiliate channel. In December 2014, a group of local investors acquired 40% of Sendloop's shares while founders retained majority ownership; no subsequent venture or growth financing has been disclosed. Revenue is not publicly disclosed, and employee headcount remains in the 1-10 range, consistent with a lean, mature independent operator rather than a venture-backed scale-up.

Name

Sendloop

Legal name

Octeth, Inc.

Website

https://sendloop.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

1–10 employees

Short description

Sendloop, operated by Octeth, Inc., is a cloud-based SaaS email marketing platform serving 36,000+ SMBs, agencies, and high-volume senders across 100+ countries with a drag-and-drop builder, automation, SMS, and 1,000+ integrations via a freemium-plus-subscription model.

Ownership category

akta.pro rank

Product category

Email Marketing Software

NAICS

Other Services Related to Advertising (54189), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Prepackaged Software (7372), Services-Advertising Agencies (7311)

akta.pro primary industry

Email Marketing Services (Campaigns, Deliverability, Lifecycle) (BPAFAKAB)

akta.pro secondary industries

Direct Marketing, CRM & Lifecycle (Email, SMS, Loyalty) (BPAFAAAJ), Email Marketing Services (Campaign Strategy, Design, Deliverability) (MPAAAIAA)

Keywords

• Email marketing software
• Marketing automation platform
• Drag and drop email builder
• Transactional email gateway
• Subscriber segmentation tools

Headquarters

HQ city

Forest Hills

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales

Revenue model

1. Subscription Plans: Monthly and annual subscription fees based on subscriber count tiers. Three main tiers: Free (limited), Pro ($39/mo starting), and High Volume ($235/mo starting). Revenue generated through recurring subscription payments from SMBs, agencies, and high-volume senders.
2. Affiliate Program: Partners earn 40% recurring commission on regular service sales and $750 one-time commission for Enterprise Edition referrals. Commission calculated as percentage of customer payments.
3. Enterprise Custom Plans: Custom pricing for large enterprises with dedicated mailing infrastructure, account management, and specialized services. Includes minimum annual fees and variable fees based on email volume.
4. Charity Programs: Special programs and discounts offered to charitable organizations, with complimentary email marketing services for qualifying charities.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels12 records

Core offering

Sendloop is a SaaS email marketing platform that enables small businesses, agencies, and high-volume senders to create, send, and automate email and SMS campaigns without technical skills. Its core offering includes a drag-and-drop email builder, subscriber management with segmentation, marketing automation journeys, auto-responders, webhooks, a full-featured API, and more than 1,000 integrations through Zapier. The portfolio is extended by Sendloop Studio (for agencies), Sendloop White Label (reseller platform), and Sendloop App Store (third-party extensions), plus SenderSuite transactional email gateway functionality merged into the platform in 2015.

Product overview

Sendloop is a comprehensive email marketing platform-as-a-service operated by Octeth, Inc., a company with over 24 years of experience in the email marketing industry. The core product is Sendloop (SaaS email marketing software), which serves over 36,000 customers in 100+ countries. The product portfolio includes Sendloop Studio for digital agencies managing multiple client accounts, Sendloop White Label for entrepreneurs building branded platforms, and the Sendloop App Store for third-party extensions. The platform also incorporates features from SenderSuite (transactional email gateway), all accessible through a unified interface. Additional legacy products include Octeth (on-premise enterprise software with 20,000+ customers) and Mailium (individual-focused on-premise software), while PreviewMyEmail (email analytics service) was acquired in 2013. The platform offers a drag-n-drop email builder, 100+ templates, email automation/journeys, SMS marketing, webhooks, conversion tracking, and 1,000+ integrations via Zapier.

Differentiator

Problem solved

Functional benefit

Brands

• Sendloop Studio: Email marketing platform designed specifically for agencies and digital marketing professionals to manage multiple client accounts.
• Sendloop White Label
• Sendloop App Store

Products and services

• Sendloop Sendloop is the primary SaaS email marketing platform operated by Octeth, Inc., offering a drag-and-drop email builder, subscriber management, segmentation, automation, SMS marketing, webhooks, conversion tracking, and 1,000+ integrations via Zapier for small and medium businesses globally.
• Sendloop Studio Sendloop Studio is an agency-focused email marketing platform that enables digital marketing agencies to manage all client accounts, assets, and campaigns under one roof with productivity-tracking and dedicated agency tooling.
• Sendloop White Label Sendloop White Label is a reseller platform that lets entrepreneurs and email marketers rebrand and operate their own email marketing platforms powered by Sendloop's infrastructure.
• Sendloop App Store Sendloop App Store is an extension marketplace that allows third-party developers and service providers to publish integrations and features that extend the Sendloop platform for its user base.
• Octeth Octeth is the parent company's enterprise-level on-premise email marketing software, serving more than 20,000 customers in 150+ countries with on-premise deployment for organizations requiring self-hosted email marketing infrastructure.

Quantifiable outcome

• 100% productivity boost reported by agency customers managing multiple client accounts
• +2 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration25 records

AI capability2 records

Feature13 records

Partnerships

Three partnerships are on record, tiered core.

• ZapiercoreTechnology or IntegrationIntegration via Zapier enabling connections with 1,000+ third-party services including Stripe, Salesforce, Typeform, Segmentify, Pipedrive, Unbounce, Helpscout, Slack, Shopify, and Kickbox.
• StripecoreTechnology or IntegrationThird-party payment processor for handling payment card transactions. PCI-DSS compliant payment processing.
• PayPal/BraintreecoreTechnology or IntegrationThird-party payment processor for handling payment transactions through PayPal.

Scale indicators9 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Mailchimp: Largest independent email marketing SaaS platform (now owned by Intuit), targeting SMBs with freemium, automation, and a broad integration ecosystem. Directly comparable to Sendloop on SMB self-serve email marketing, deliverability, and template-driven campaign creation.
• Brevo (formerly Sendinblue): All-in-one email, SMS, CRM, and marketing automation platform for SMBs and mid-market. Closely comparable to Sendloop on combined email + SMS marketing, automation journeys, and a tiered subscription model including freemium.
• MailerLite: Self-service email marketing platform emphasizing ease of use, drag-and-drop builder, and affordable pricing for SMBs and creators. Directly comparable to Sendloop on UX-led SMB positioning and low-cost subscription tiers.
• GetResponse: Email marketing and automation suite with landing pages, webinars, and CRM-like features. Overlaps with Sendloop on SMB/agency marketing automation, multi-channel campaigns, and tiered subscription pricing.
• Constant Contact: Long-standing email marketing platform for SMBs, nonprofits, and associations. Comparable to Sendloop on SMB and charity/nonprofit verticals, deliverability focus, and event/registration campaign use cases.
• ActiveCampaign: Email marketing plus CRM and sales automation platform with deep automation workflows. Overlaps with Sendloop on automation journeys, segmentation, and a subscription tier including high-volume senders.
• AWeber: Email marketing platform focused on SMBs and solopreneurs with drag-and-drop builder and templates. Closely comparable to Sendloop on ease-of-use SMB positioning, template library, and freemium/affiliate GTM.
• Campaign Monitor: Email marketing platform with strong agency and white-label programs (CM Group family). Highly comparable to Sendloop on the agency multi-client workflow (Sendloop Studio) and white-label reseller angle.
• ConvertKit (now Kit): Email-first creator marketing platform with automations, landing pages, and commerce tools. Comparable to Sendloop on SMB/individual creator targeting, automation journeys, and tiered subscription pricing.

Broad incumbents

• HubSpot Marketing Hub: Broad CRM and marketing automation suite with email marketing as one of many modules. Comparable to Sendloop at the upper end (enterprise, corporations, agencies) but operates as a wider portfolio rather than a specialist email-marketing platform.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sendloop
• YouTubeyoutube.com/user/sendloop
• Facebookfacebook.com/sendloop
• LinkedInlinkedin.com/company/246407
• Instagraminstagram.com/sendloop

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sendloop