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Agency partners

Find and connect with a certified Agency Partner

Need a hand getting your automated messaging efforts to the next level? Discover our certified partners in our partner community. Whether you’re looking for a strategic consultation or full-service execution, you’ll find the right fit here.

We will do all the work to match you with the best partners.
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Matchmaking agent
Certified Partner
Certified Partner
FIVE Agency, an Endava company
FIVE Agency designs, develops, and grows winning digital products that deliver business results and move metrics for our clients. Our growth team applies an analytically rigorous data-driven approach to relentlessly optimize every user journey and lifecycle growth funnel. Growth services span user acquisition, app store optimization, engagement marketing, and test-&-learn based conversion optimization. FIVE is part of Endava (NYSE: DAVA).
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Certified Partner
Certified Partner
Modular Marketing
Get more value from Customer.io Modular is a personalization and retention agency that helps leading brands launch, scale, and optimize lifecycle programs on Customer.io. We combine deep expertise with a repeatable delivery system—so you can move from “platform set up” to measurable impact without reinventing the wheel. What we do in Customer.io: * 🔧 Foundation & Infrastructure: data architecture, event taxonomy, modular templates, dynamic content/snippet engine * 📈 Build & Launch: Campaign + journey frameworks, cross-channel orchestration (email/SMS/push/in-app), QA, optimization sprints * 🧠 Strategy & Ops: audits, governance, testing roadmap, reporting upgrades, AI-assisted insights Industries: healthcare & wellness, fintech, retail, travel & hospitality, eCommerce, B2B SaaS, marketplaces, and more. Ready to accelerate Customer.io outcomes? Let’s start with an audit or a build sprint.
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Certified Partner
Certified Partner
Web2Media
At Web2Media, we are a full-service digital marketing agency with a comprehensive approach to helping businesses succeed in the digital landscape. We support and both B2C and B2B companies. Our team of over 75 specialists brings expertise across key areas such as SEO, paid media, social media management, and marketing automation. We focus on creating customer-centric solutions, combining strategic insights with the latest technology to drive results. With Customer.io, we specialize in marketing automation and CRM, enabling brands to deliver highly personalized, omni-channel experiences that take the customer experience to new heights through loyalty and engagement across all touchpoints.
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Certified Partner
Certified Partner
Caddie Inc.
Caddie Inc. features a team of experienced professionals with a wealth of knowledge in marketing, tech, finance and SaaS. We can assist with all aspects of Customer.io, from implementation to optimization. We know that every business has its own unique needs, which is why we take the time to understand your company, your goals, and your challenges. Whether you're just starting out with Customer.io or looking to take it to the next level, we have the expertise to help you succeed. In addition to our technical skills, we value strong relationships with our clients. We strive to be a reliable and trusted partner, available to offer support and guidance. Thank you for considering us as your consultancy. We look forward to working with you to achieve your goals!
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Certified Partner
Certified Partner
Retenza LTD
Experts in User Retention for iGaming With over 5 years of industry experience, we specialize in building long-term value by helping iGaming brands keep players engaged, active, and loyal. What We Do Best: User Retention Strategies * We craft and execute proven retention flows tailored to your audience. * From welcome journeys to reactivation campaigns — we keep users coming back. Data-Driven Decision Making * Every strategy is backed by deep analytics, not guesswork. * We optimize timing, messaging, and channels based on behavioral data. Multi-Channel Optimization * We analyze your current communication stack and identify gaps. * Whether it’s push notifications, email, SMS, or in-app messaging — we ensure they work in sync to maximize engagement. Conversion-First Approach * Retention is not just about staying visible — it’s about driving action. * We turn engagement into measurable conversions that directly impact ROI. Personalization at Scale * Users expect relevant content. We deliver it. * Segmentation, triggers, and dynamic content ensure every message adds value. Why Partner With Us? * 🧠 Expertise: Years of hands-on experience in retention and lifecycle marketing. * 📊 Results-Oriented: Clear KPIs, transparent reporting, and constant optimization. * 🔁 Sustainable Growth: We don’t chase vanity metrics — we build real loyalty. * 🤝 True Partnership: We treat your goals like our own and work as an extension of your team. Let’s turn your first-time players into lifetime users — and your marketing spend into lasting results.
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Certified Partner
Certified Partner
LEO
Expert Email Marketing Agency & Marketing Automation Services Hire a team of Lifecycle, Email, and Omnichannel marketing automation experts to build a strategy for your business that turns leads into customers and customers into advocates. Start making meaningful connections with your customers today. What we do We build data-driven campaigns that turn leads into customers and customers into advocates, what we call Lifecycle Engagement Optimization. Hire us to empower your team or be your team, to build your lifecycle marketing strategy from scratch, or to optimize an existing one. We’re omnichannel strategists with experience in email, SMS, push, and in-app messaging. We’re fast, we’re affordable, and we’re the email geeks your customer’s inbox deserves. We’re LEO. Our Services: https://connectwithleo.com/services * LEO Expert OnDemand: Get priority access to an experienced LEO lifecycle marketing expert. Tap the resources you need for any projects in email, marketing automation, and lifecycle marketing. Choose the level of support you need from 40 hours/month (~10/week) to 160 hours/month (~40/week). Adjust your monthly hours as your needs change, and end any time with notice. * LEO Team OnDemand: Get priority access to LEO's team of experienced lifecycle marketing experts - a dedicated strategist backed by our copywriters, designers, and email developers. Tap the resources you need for any projects in email, marketing automation, and lifecycle marketing. Choose the level of support you need: 40, 60, or 80 hours per month. * Lifecycle Accelerator: In a 3-month sprint, go from 0 to Lifecycle Hero, as our experts: Audit your customer Lifecycle, draft a custom LCM Playbook with tips for improving your customer Engagement and getting the most out of your ESP, Optimize your lifecycle with the must-have flows to better connect with (and convert/retain) your customers at key steps in their journey. Schedule a call: https://connectwithleo.com/contact
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Certified Partner
Certified Partner
good thinking CRM
At good thinking, we are a passionate and innovative experts in multichannel lifecycle marketing. With more than 10 years of experience, we can not wait to support you in developing and launching a CRM strategy that both you and your customers will love. Whether you are just starting out on your CRM journey or are ready to take your existing setup to the next level, we are excited to offer you a package tailored to your company's individual needs.
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Certified Partner
Certified Partner
Welcome Tomorrow
Moving away from traditional marketing agencies, Welcome Tomorrow sets new standards as your trusted growth partner.
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Certified Partner
Certified Partner
Preeti Kelapure Consulting
CRM | Lifecycle Marketing Leader | ex- Square, Glassdoor, Zynga I'm currently focused on advisory roles in Lifecycle & Retention Marketing,
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Certified Partner
Certified Partner
Flowium
Flowium is a full-service eCommerce email marketing agency run by a team of proven experts. Our mission is to deliver results-driven email marketing for every brand we encounter We do it by providing you with an all-star team of pros to take care of everything related to email marketing, including: * Account set up * Full email marketing strategy (abandoned cart, browser abandonment, welcome series, etc.) * Campaign content calendar * Email copy that fits your brand and connects with your customers * Email design optimized for mobile and dark mode * Technical setup and regular maintenance * Continuous testing and optimization for even better results We also offer SMS marketing to maximize engagement and repurchase rates with your brand. Every Flowium team member is an expert in their field, whether that’s copywriting, design, brand strategy, working together to bring you top-tier results. For real, revenue-boosting email marketing solutions, contact us.
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Certified Partner
Certified Partner
Extensive Web
Extensive Web was established in 2009 as a web designing and development agency. We have delivered hundreds of successful projects in US, UK and other European countries. We have been working with different CMS, e-commerce and marketing platforms since 2013. Here is the list of services that we provide: 1) Marketing Automation to manage complete user flow and retargeting users based on user actions 2) Custom WordPress theme and plugin development 3) Custom Woocommerce-based theme and plugin development 4) Custom theme and app development for Bigcommerce 5) Data visualization services that include creating beautiful digital dashboards using Google Data Studio 6) Email marketing setup
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Certified Partner
Certified Partner
ByteSlice
Your budget can't afford senior engineers. Your product can't afford junior engineers. ByteSlice offers a new operating model to bridge this gap to accelerate your startup's success.
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Certified Partner
Certified Partner
FlowHQ
FlowHQ takes the complexity out of business data and automation. We work alongside our clients to streamline their sales, marketing and customer relationship management with a focus on data and shaping bespoke solutions that help improve their customer lifecycle.
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Certified Partner
Certified Partner
Optiblack
Optiblack is #1 Leading Product Growth partner who has worked with 30+ SaaS companies to drive product growth. They are only ones who provide setup, implementation support, training, continuous support, growth assistance after implementation
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Certified Partner
Certified Partner
Resolve Digital
At Resolve Digital, we specialize in future-proof digital solutions tailored to scale from small businesses to enterprise projects. With over 35 years of collective experience, our team excels in Web and App Development, Data Engineering, Analytics and Hardware/Marketing Automation. We adeptly navigate ISO27001 and PCI-compliant environments, building exceptional websites and apps using WordPress, Silverstripe, Shopify, Webflow, Prismic, Next.js, and React.js. Our data engineering team constructs custom pipelines and handles data transformation, cleansing, and classification using tools like Twilio Segment, Tealium, CustomerLabs and Salesforce CDP. For Analytics, we create bespoke dashboards and leverage tools like Google Analytics, Amplitude, Power BI, Tableau, and Looker Studio for deep insights. For marketing Automation, we design solutions with platforms such as Customer.IO, Marketo, and Klaviyo to optimize engagement and results. Resolve Digital simplifies your experience by connecting you directly with our experts, eliminating the complexity often found in traditional agencies. Our team realizes your digital ambitions and excels in getting the job done. Our extensive experience ensures we deliver top-tier, cost-effective solutions without compromise. We create partnerships that build brands, generate leads, accelerate e-commerce, and digitally transform businesses. Think Bold, Build Brilliant with Resolve Digital.
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Certified Partner
Certified Partner
Email Industries
The Email Deliverability Experts Since 2008, our email deliverability consultants and analysts have been helping the world’s best brands to hit the inbox—and stay there. 1. Deliverability Consulting & Troubleshooting 2. Audits & Remediation 3. DeliverabilityDeliverability Management 4. Campaign Deployment 5. Migrations & Warmups 6. Platform Integrations 7. Deliverability Staffing & Training 8. Full-service Email Marketing How can we help you today?
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Certified Partner
Certified Partner
Mammoth Growth
Mammoth Growth is a data, analytics, and growth consulting firm that helps clients ask the right business questions, select and instrument the right tools, verify their data integrity, manage their reporting infrastructure, and provide recommendations and insights that achieve measurable growth. Mammoth consultants have extensive experience working with Customer.io and we help enable your team to ensure long term success with the tool. Our team is fully remote, with consultants in the US, Canada, and the UK. Mammoth helps digital marketers: • Get Accurate, Reliable, Consistent Data Drive better team results by ensuring data is accessible in the moment it matters and in the place it’s needed. • Leverage Data to Drive Growth Data only matters if it helps you grow your business — Prioritize opportunities so you get the most from your insights. • Optimize Customer Engagement Send the right message at the right time across your customer lifecycle to increase engagement and total ROI.
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Certified Partner
Certified Partner
DGTLmotion
We drive your growth by doing things differently. With a unique combination of creativity, data-driven growth marketing, and technology, we put your business in high gear and ahead of the race — both online and beyond.
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Certified Partner
Certified Partner
Algorithmic
Algorithmic is a specialist software development and engineering studio that builds Full Digital Products, Machine Learning & AI systems, and Data Platforms where technical complexity is a strategic variable. Beyond building, we help growth teams take their product to the market through sophisticated marketing pipelines by bridging the the gap between your product's backend infrastructure and your marketing automation. Led entirely by senior engineers, we partner with growth and lifecycle teams to handle the complex technical lifting required to unlock Customer.io’s full potential. We ensure your marketing stack works flawlessly so you can focus on strategy, messaging, and conversion. How we support marketing & growth teams: * Precise event tracking & integration: We implement custom behavioral tracking across your Web and Mobile apps (iOS, Android). We ensure that every user action, no matter how complex, is instantly available in Customer.io to trigger real-time campaigns. * Complex data pipelines: We connect your disparate data sources (CRMs, internal databases, data warehouses) directly into Customer.io. We eliminate manual data uploads and ensure your messaging is always led by accurate, real-time information. * Predictive audience intelligence (AI/ML): We build custom Machine Learning models, such as churn risk forecasting, lead scoring, and product recommendation engines, and pipe those insights directly into Customer.io as actionable user attributes for highly targeted segmentation. We work with organizations where technical execution drives revenue. What we bring is senior thinking, rigorous execution, and full accountability from scoping through deployment. Contact us at info@algorithmic.co or drop a line at +1 (858) 294-5690 If it's worth building, build it well.
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Certified Partner
Certified Partner
Inclined
We partner with online businesses to analyze, implement and optimize changes that dramatically increase their bottom line. We are a technical growth marketing agency with deep expertise in Customer.io, Segment, Amplitude, BigCommerce Enterprise, and Shopify Plus. We run world-class email marketing campaigns on Customer.io.
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Certified Partner
Certified Partner
GrowthBench
GrowthBench helps ambitious companies unlock lifecycle marketing’s full potential—turning personalized, data-driven journeys into measurable revenue. As a specialized consultancy, we provide fractional leadership, managed growth services, full-service recruiting, and staff augmentation that empower teams to scale without the cost and complexity of building in-house. We’ve partnered with over 900 leading brands—including Dropbox, Dialpad, Vuori, and Tonal—to deliver high-impact lifecycle programs that improve retention, accelerate acquisition, and maximize ROI. Our elite network of vetted experts works seamlessly with Customer.io, building clean data foundations, orchestrating targeted campaigns, and implementing automated workflows that adapt to customer behavior in real time. From data governance and analytics & attribution to customer journey optimization and conversion rate enhancement, we bring the right people, processes, and technology to your specific challenge. With hands-on experience across 500+ marketing and data tools, we integrate Customer.io into a broader, unified growth stack—ensuring every message is timely, relevant, and revenue-driving. Whether you’re an early-stage startup launching your first lifecycle program, a high-growth business scaling personalized campaigns, or an established brand evolving your retention strategy, GrowthBench delivers scalable, measurable outcomes that turn Customer.io into a true growth engine.
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Certified Partner
Certified Partner
INCORE
INCORE — Strategic Digital Growth, Web Innovation & AI Automation INCORE is a boutique, award-winning digital agency helping ambitious brands grow through strategy, design, advanced technology, and performance-driven execution. Based in New Jersey and serving clients across North America and EMEA, we partner with organizations that value long-term thinking, measurable outcomes, and meaningful collaboration — not quick, one-off projects. We combine creative vision with technical depth to design and build modern digital ecosystems. From high-impact websites and scalable web applications to AI-powered marketing automation and lifecycle journeys, our work is focused on helping brands connect with their audiences more intelligently and grow sustainably. Our team blends strategic marketing insight, UX excellence, and engineering expertise to transform complex business goals into powerful digital experiences. Our capabilities include: * Web Design & Development: bespoke, conversion-focused websites and digital experiences. * Custom Web Applications & Platforms: modern React/Next.js builds, integrations, and data-driven digital products designed to scale. * AI & Marketing Automation: customer journeys, behavioral segmentation, lifecycle messaging, and advanced automation powered by platforms like Customer.io. * Growth Marketing: SEO, paid media, CRO, and analytics aligned to real business KPIs. * Strategy & Consulting: helping companies align technology, messaging, and performance into one cohesive roadmap. Unlike traditional agencies, INCORE is intentionally selective about who we work with. Most of our clients stay with us for years — not months — because we operate as a strategic partner invested in their evolution, not a vendor delivering quick deliverables. From concept to launch and long-term optimization, we help organizations build durable digital infrastructure that continues to perform well beyond initial deployment. If you’re looking for an experienced partner that blends AI-driven automation, web innovation, and growth strategy — and you’re ready to invest in meaningful progress — INCORE is built for you.
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Certified Partner
Certified Partner
1973 Ltd
1973 Ltd is a lifecycle marketing consultancy that helps teams implement and get more value from Customer.io. We support companies with strategy, setup, and ongoing optimisation across email, push, SMS, and in-app messaging. We work closely with marketing, product, and engineering teams to design data-driven customer journeys that improve activation, engagement, and retention. Whether you’re launching Customer.io for the first time or refining an existing setup, 1973 provides hands-on support to ensure your messaging is reliable, scalable, and aligned with your product and data. We are experts in Email Design & Best practice including dark mode, responsive interactive emails. We sit on the Data & Marketing Associations Email Council. We know where to source good quality data for campaigning. We provide insight and industry best practise.
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Certified Partner
Certified Partner
Mando way
We're used to deliver qualitative work on time. Your mission is our priority and our word is beskar. We believe this is the way. get in touch >> www.mandoway.com
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Certified Partner
Certified Partner
ScaleMath
ScaleMath works directly with software startups, VC firms, and enterprise companies to help them scale customer acquisition with SEO & content marketing. Real results driven by spending time, day after day, month after month, helping people and businesses grow their search traffic & deliver exceptional customer experiences.
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Certified Partner
Certified Partner
Mediac Agency
Mediac Agency is a Danish performance and design agency specializing in experience-driven branding, marketing strategy, and digital growth solutions. Based in Aarhus, we help businesses unlock their full potential by delivering cutting-edge marketing, creative design, and compelling storytelling that resonate with their audiences. Our expertise spans across digital advertising, content creation, branding, and video production, ensuring that every campaign is crafted with precision and purpose. We believe in making marketing simple yet effective, aligning our strategies with data-driven insights and creativity to maximize results. At Mediac Agency, we don’t just execute campaigns—we create meaningful brand experiences that engage, inspire, and convert. Whether it's building a brand from the ground up, optimizing performance marketing, or producing high-impact visual content, our goal is to drive measurable success for our clients. Our core services include: * Strategic Marketing: Tailored strategies that align with business goals and market trends. * Performance Advertising: Data-driven campaigns designed for maximum ROI. * Branding & Identity: Developing strong, cohesive brand narratives that stand out. * Content Creation: Engaging, high-quality visual and written content for various platforms. * Video Production: Storytelling through dynamic video content that captivates audiences. We collaborate with businesses of all sizes, from startups to established enterprises, helping them navigate the evolving digital landscape with confidence. With a commitment to transparency, innovation, and excellence, Mediac Agency is your trusted partner in achieving marketing success. Let’s make marketing simple—let’s make it work. Visit us at mediacagency.com to learn more about our work and how we can help your brand grow.
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Certified Partner
Certified Partner
UFirst GmbH
UFirst is your premier full service web agency and expert in customer.io implementation and strategy. Our mission is to assist you in becoming data-driven and customer-centric, empowering your business to create personalized customer experience at scale. Committed to excellence, our team delivers state-of-the-art technologies and tailored strategies to address the evolving needs of modern enterprises. We specialize in digital transformation, e-commerce, B2B commerce, app development, and software solutions. Serving as your trusted partner, we excel in executing digital projects across the DACH region (Switzerland, Germany, and Austria), with a particular focus on delivering digital solutions for the construction, telecommunications, and hospitality industries.
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Certified Partner
Certified Partner
Shaw/Scott
Shaw/Scott is a boutique agency and consultancy that empowers B2C brands to elevate their retention and loyalty programs. We are owned-channel experts, acting as trusted advisors and valued partners to clients like PetSmart, The Knot, lululemon, Alaska Airlines, Viking Cruises, Prosper, and Macy's. Our boutique size puts us in the sweet spot: we’re big enough to offer a full suite of services, yet small enough that our clients always get our A-team, whether in strategy, creative, development, analytics, or MarTech stack implementation. We provide full-service and cross-disciplinary engagements that empower brands to reinvigorate their lifecycle marketing, including: * Strategic roadmap * Full-service email/mobile marketing execution * Customer journey mapping * Analytics and dashboard development * Modular email templates * Lifecycle & loyalty program development * ESP & loyalty platform RFP support * MarTech audits * Communication matrix * ESP migrations and implementations
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Certified Partner
Certified Partner
Navigator Tech Solutions
We are a strategic and technical marketing company that marries light-weight development with world class marketing to help your company build trust and develop a strong relationship with your customers. We do this by designing key communication that addresses friction and opportunities for better engagement to drive profitability from your current customers and leads. Our core customers use us for managing or migrating marketing technologies, designing scaleable automated solutions, and operationalizing AI driven methodologies in their business. We work with teams of all sizes from Small Businesses to Enterprise Organizations and Fortune 500 Companies. We love edge cases that require unique solutions, and streamlining complicated or complex flows into streamlined and scaleable systems. Email, SMS, in-app, and push notifications cover the vast majority of the communication programs we build and we integrate end to end campaign journey management to deliver high value ROI on our programs. If you are looking for a migration partner, want to solve for net recurring revenue, or drive outcomes in among your current customers and leads, we are the partner for you. Please reach out for an intro strategy session to see if it makes sense to work together.
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Interested in becoming a Partner?

The Customer.io partner program is for agencies and technology companies that want to grow their business by providing exceptional messaging services to our mutual customers. We’ll help you grow through guidance, education, our referral network, and so much more.

Top-notch training

Use our partner exclusive training to train your team on our product -- and more importantly how to become messaging and email experts.

Agency-only communications

Be in the know. Gain an inside track of communication and how what we’re building at Customer.io can help your business grow.

Access to new leads

Get listed in our partner directory for increased exposure and backlinking + become part of our referral network. (Coming soon)

Co-marketing

Work with our marketing team to increase your exposure. Guest blogging, co-branded materials, and more…

Peer-to-peer community

A safe place to ask questions, get advice, and share opinions with marketing and messaging professionals from all walks of life.

Sales enablement

From one-pagers to competitive comparisons, we’ll give you what you need to sell Customer.io effectively.

What makes a good Partner?

At Customer.io we have two different types of partnerships that help drive success for our customers. Customer.io Agency Partners are responsible for helping our customers hit their marketing and growth goals through the implementation of awesome messaging campaigns. Customer.io Connect Partners build first-class integrations with our platform to help our customers take their messaging abilities to the next level. Not all companies are suited for partnerships like the Customer.io Partner Program.

However, companies with the following attributes always make a good fit:

  • Looking to grow
  • Willing to work with our team to come up with micro and macro solutions
  • A focus on providing value and finding the right solution over pitching
  • Willingness to be transparent and honest
  • Committed to follow through