Email List Growth with Brand Partnerships

Low Email List Growth: How Brand Partnerships Can Help

When email list growth slows down, turning to brand partnerships can be a smart solution. By collaborating with companies that share a similar audience but offer different products, you can reach new, engaged subscribers without relying heavily on paid ads. Here's why this approach works:

• Email lists drive revenue: Email marketing delivers an average ROI of 3,800%, making it one of the most effective channels for ecommerce brands.

• Challenges in organic growth: Rising ad costs, privacy changes (like iOS 14.5), and inbox overload make it harder to grow email lists through traditional methods.

• Partnership benefits: Partnering with other brands lets you access their established audience, build trust through association, and reduce acquisition costs.

Key Strategies for Partnerships:

1. Cross-Promotions: Exchange newsletter mentions or email shout-outs with aligned brands.

2. Co-Branded Campaigns: Create joint offers or bundles that require email sign-ups.

3. Giveaways/Contests: Collaborate on prize pools, requiring participants to join both email lists.

Real Results:

• A co-branded giveaway between Off Road Tents and Guana Equipment added 7,000+ new subscribers in 30 days.

• A skincare and wellness brand partnership brought in 847 subscribers, with 34% converting to buyers in 30 days.

Next Steps:

Start small with a newsletter swap or giveaway, and focus on partners with at least 70% audience overlap. Tools like Riplz can help find the right collaborators. With the right approach, partnerships can help you grow your email list efficiently and effectively.

Grow your email list from scratch (2025 beginner guide)

How Brand Partnerships Can Fix Low Email List Growth

When your email list growth slows down, partnering with another brand can be a game-changer. By teaming up, you gain access to an already engaged audience without having to build one from scratch.

Reaching a Bigger Audience

The biggest perk of a brand partnership? Your partner has already done the heavy lifting of building a loyal audience. By collaborating with a brand that targets a similar customer base - but offers a different product or service - you can reach potential subscribers who might not know you exist.

To make this work, aim for at least 70% customer overlap between your audience and your partner's [1]. This overlap ensures your efforts actually convert. Take, for example, a fitness apparel brand teaming up with a healthy snack company. They're speaking to the same health-conscious individual but addressing different needs. A collaborative giveaway between these two brands can bring in as many subscribers in a month as each might achieve on their own in a year [2]. Plus, this wider reach naturally boosts your reputation, which leads us to the next benefit.

Building Trust Through Association

Getting cold traffic to convert is tough. When someone sees your ad for the first time, they have no reason to trust you. But when a brand they already follow says, "Hey, check this out," everything changes.

"When people see your brand alongside others they trust, it boosts your credibility, much like a VIP endorsement." - Noknok Studios [2]

This is called trust transfer - your partner’s credibility rubs off on you simply through association [6][1]. It’s a far more effective introduction than a standard paid ad. For instance, a skincare brand partnered with a wellness sleep products company to create a co-branded email series called "The Complete Evening Routine." The campaign brought in 847 new subscribers in just two weeks, and 34% of them made a purchase within 30 days [4]. That kind of conversion rate is hard to achieve with cold paid traffic. Beyond driving conversions, this trust-building approach significantly lowers the cost of acquiring new subscribers.

Lower Cost Per Subscriber

The rising cost of paid ads is no secret. But partnerships can help you sidestep those expenses entirely. In fact, some formats - like newsletter shout-outs or email swaps - require $0 in direct ad spend [1]. All you need is time and a clear value proposition.

For campaigns with shared costs, such as co-branded giveaways, the expenses (like prizes and promotions) are split between partners. This gives both brands the chance to present a high-value offer to a fresh audience at a fraction of the cost of going it alone. As RISE DTC explains:

"Partnership marketing isn't just a nice-to-have anymore. It's the secret weapon of brands that scale past $50M without burning through capital." [1]

Types of Brand Partnerships That Grow Your Email List

When it comes to expanding your email list, brand partnerships can be a game-changer. Below are three strategies that not only build on the benefits of collaboration but also provide actionable steps to boost your subscriber count. Some are quick and easy to implement, while others require more effort but can deliver impressive results.

Cross-Promotions

Cross-promotions are one of the easiest ways to dip your toes into partnership marketing. Here’s how it works: two brands agree to promote each other to their respective audiences. This could take the form of a newsletter swap, a shoutout in an email, or a mention in a regular newsletter. Each brand writes a short endorsement for the other and includes a link to a lead magnet or sign-up page.

The beauty of this approach? It’s cost-effective. You’re trading exposure rather than spending money on ads [1]. To make it work, choose a partner whose audience aligns closely with yours. Brands with similar email list sizes often see the best results from this type of partnership [3].

Co-Branded Campaigns

Co-branded campaigns take collaboration a step further. Instead of simply mentioning one another, the two brands create a joint offer - this might be a discount, an exclusive bundle, or even a co-branded product launch. Both brands promote the offer to their audiences, often using a shared landing page where users enter their email to claim the deal.

This strategy not only captures leads but also allows both brands to grow their email lists simultaneously. ShopSwap explains it well:

"Co-marketing is a marketing strategy where brands partner together to expand their reach... designed to deliver more leads, buzz, and awareness with less work, and crucially, less cost." [3]

For example, a co-branded campaign could require users to sign up with their email to receive a discount code, helping both brands gather high-intent leads for future marketing efforts.

Giveaways and Contests

If you’re looking for rapid growth, giveaways and contests are incredibly effective. In this setup, both partners contribute to a prize pool and require participants to opt into both email lists to enter. The bigger the prize, the greater the interest - aim for a combined value of at least $200 to maximize participation [2].

Take the example of Off Road Tents and Guana Equipment. In 2024, they ran a co-branded rooftop tent giveaway and gained over 7,000 new email and SMS subscribers in just 30 days. Gianluca Boncompagni, Founder of Off Road Tents, shared:

"We managed to collect 7,000+ emails and cellphone numbers in 30 days... the collaboration gave us lots of high-quality emails and SMS subscribers, which actually ended up buying other tents at a discount for having participated!" [7]

To keep the momentum going, consider offering a consolation discount to non-winners. This can turn potential leads into paying customers rather than letting them lose interest [9].

In the next section, we’ll walk through how to effectively launch these brand partnerships to maximize your email list growth.

How to Launch a Brand Partnership Step by Step

Launching a successful brand partnership involves more than just picking the right collaboration model. It’s about finding the perfect partner, crafting a compelling proposal, and executing a campaign that delivers measurable results.

How to Find the Right Partner

The ideal partner should complement your brand, not compete with it. For instance, a skincare brand might pair well with a wellness company or an eco-conscious clothing label, but teaming up with another skincare brand could feel redundant [6][2]. Beyond product alignment, look for shared audiences and values to ensure the partnership feels authentic.

Start by surveying your subscribers. Ask them which brands they follow or purchase from - this can uncover surprising opportunities for collaboration [2]. Tools like Facebook Audience Insights can also help identify brands your followers already engage with. Once you have a list of potential partners, subscribe to their newsletters to assess their email strategies and overall engagement.

If you’re looking to streamline the process, platforms like Riplz offer AI-driven partner matching for Shopify-based direct-to-consumer (DTC) brands, making it easier to connect with value-aligned businesses.

Finding the right partner lays the groundwork for a campaign that resonates with your audience and delivers results.

How to Write a Partnership Proposal

A well-crafted proposal is short, specific, and focused on mutual benefits. Show that you’ve done your research by referencing a shared value or a past campaign that aligns with your idea - this demonstrates that your pitch isn’t just a generic template [10][12].

Clearly outline your proposal, whether it’s a co-branded giveaway, an email swap, or a joint lead magnet. Highlight why your audiences align and back up your pitch with relevant data, such as the size of your email list or metrics from previous campaigns, to establish credibility [11][12]. Offer to handle logistics and creative responsibilities to make the process easier for your potential partner.

End your proposal with a low-pressure call to action, like suggesting a quick 15-minute call to explore the idea further. Once you both agree to move forward, formalize the arrangement with a written agreement that outlines roles, timelines, and any cost or revenue-sharing details [7][8].

A clear and thoughtful proposal can set the stage for a smooth and successful collaboration.

How to Run and Measure Your Campaign

To ensure a seamless campaign, coordinate with your partner on a shared content calendar. This helps synchronize promotions across email, social media, and paid channels [6][7]. For lead capture, keep sign-up forms simple - just ask for a first name and email address to maximize conversions [2].

After the campaign, segment new subscribers based on their source and track key metrics like subscriber growth, conversion rates, and revenue. When executed properly, co-branded campaigns often deliver noticeable improvements across all three areas [4].

Don’t forget to follow up with an automated welcome sequence tailored to partnership subscribers. A personalized onboarding flow that acknowledges how they discovered your brand typically outperforms generic email sequences [2].

Examples of Email List Growth Through Brand Partnerships

Theory is great, but nothing beats seeing real-world results. Here’s how some DTC and service brands have effectively used partnerships to grow their email lists.

Co-Branded Giveaways

Co-branded giveaways are a powerful way to attract subscribers who already have an interest in both brands. When entering the giveaway requires an email address, it’s an easy way to build a list of genuinely engaged subscribers.

The trick is pairing brands with complementary products that naturally go together. For example, a fitness brand partnering with a nutrition company can create a prize bundle that appeals to both of their audiences. This approach allows both brands to split costs, share promotional efforts, and walk away with a new pool of email subscribers who are likely to stay engaged [2].

Email Swaps Between Partner Brands

Email swaps are one of the simplest ways to grow an email list quickly. In this setup, two brands agree to feature each other in their newsletters, usually with a short blurb and a link to a signup page or lead magnet.

Lori Appleman, Co-Founder of Redline Minds, shared an example of a partnership between a skincare brand and a wellness company. Together, they created a 5-part email series called "The Complete Evening Routine." This series blended skincare tips with sleep optimization strategies, resulting in 847 new subscribers for the skincare brand in just two weeks. Even better, 34% of those new subscribers made a purchase within 30 days [4].

"Instead of the typical 'let's just mention each other,' we created joint educational content series that provided real value to both audiences." - Lori Appleman, Co-Founder, Redline Minds [4]

Newsletter creator Ali Abouelatta also reported gaining 465 subscribers in eight months through cross-promotion swaps alone [13]. For larger creators, swaps between email lists of 100,000–150,000 subscribers can generate thousands of new signups from just one feature [13].

Co-Branded Product Launch Campaigns

Taking email swaps a step further, co-branded product launches combine efforts to turn audience interest into measurable list growth.

Codie Sanchez scaled her newsletter by working with creators like Sahil Bloom, Noah Kagan, and Ali Abdaal. They exchanged talking points and snippets to ensure consistent messaging across their audiences. These collaborations brought thousands of new subscribers to her list [13]. By treating the campaign like a mini-product launch - with teaser content, clear deadlines, and follow-up reminders - this strategy not only grew her list but also strengthened trust with her audience.

"True partnerships grow when both sides lead with value rather than promotion. When people feel educated instead of sold to, they build a connection that lasts far beyond a single campaign." - Jorge L. Flores, Partner, Law Offices of Jorge L. Flores, P.A. [4]

Conclusion: Using Brand Partnerships to Grow Your Email List

Building an email list on your own can be tough - and expensive. But partnering with other brands offers a more budget-friendly way to grow without relying on hefty ad budgets or an already massive audience.

Key Takeaways

One of the biggest perks of brand partnerships is the trust factor. When a brand your target audience already knows and respects recommends you, people are much more likely to sign up than if they just see a random ad [5].

The stats back this up. For example, a rooftop tent giveaway co-hosted by Off Road Tents and Guana Equipment brought in over 7,000 leads in just 30 days [7]. Similarly, a webinar collaboration between a cold email SaaS and a deliverability consultant generated 1,800 new subscribers and saw an 11% trial conversion rate within a week [5]. These examples show how teaming up with aligned brands can produce impressive results - without breaking the bank. Instead of paying per click, you’re often just contributing effort or a prize, which keeps the cost per subscriber much lower than traditional paid media [5].

This approach provides a clear roadmap for brands looking to grow smarter, not harder.

Next Steps for Ecommerce Brands

With these benefits in mind, it’s time to take action. Start small - try a newsletter mention or a co-branded giveaway to gauge how your audience responds. Once you’ve seen some success, expand into bigger projects like educational content, product bundles, or even joint launches.

Focus on finding a partner with at least a 70% audience overlap and similar brand values [1]. Tools like Riplz can simplify this process. Designed for Shopify-based DTC brands, Riplz uses AI to match you with partners that align with your goals, saving you time and helping you grow faster.

"The best partnerships are created when both sides are benefiting, earning trust instead of just gaining new leads." - Gabriel Shaoolian, CEO and Founder, Digital Silk [4]

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