TLDR:

• We’ve raised a $15M Series A led by Battery Ventures, with continued participation from our previous backers Index Ventures and Connect Ventures.

• Plain is the fastest, most powerful support platform for B2B companies. As an AI-powered platform and API-first platform, it powers high-touch, company-to-company support on channels like Slack, Microsoft Teams, Discord, chat and more; for many of the world’s most exciting software companies.

• AI is transforming B2B customer support. Customer-facing teams are moving from reactive support to building proactive, collaborative partnerships with their customers. Customer interactions are shifting to real-time channels like Slack and Teams. This shift is creating a new category: customer collaboration. We are building Plain as a platform designed to define that category.

• We’re doubling down on our product, opening a San Francisco office to support our growing customer base and hiring across all disciplines. We’d love for you to join us.

Long version:

We’ve raised a $15m Series A led by Battery Ventures, with continued participation from Index Ventures and Connect Ventures, to build the best support platform for B2B. This funding will accelerate our mission of helping companies deliver support more efficiently and collaboratively, integrating communication channels and fostering teamwork to improve customer relationships.

Plain is designed for modern companies that want to provide exceptional support experiences. We are especially focused on high growth businesses that need scalable, innovative support solutions to manage rapid expansion and evolving customer needs.

Why we exist

B2B customer support is undergoing three major shifts that are transforming the industry.

1. AI is freeing customer-facing teams from manual and repetitive work. These major shifts mean companies are moving from reactive and siloed support to building proactive and collaborative partnerships with their customers, fundamentally changing how businesses engage with clients.

2. Customer interaction is moving from transactional and siloed email and chat communications on traditional platforms and ticketing systems to collaborative, real-time new communication channels like Slack, Discord and Microsoft Teams. This new reality of B2B support requires businesses to adapt to dynamic ways in which businesses interact with their customers, fostering ongoing engagement and collaboration. Employees increasingly work in these collaborative, real-time environments rather than relying on siloed email.

3. Support, success and engineering are moving ever closer together. According to Gartner, 30% of the Fortune 500 already say they will consolidate post-sales functions into one role by 2027. The focus is shifting from just closing tickets and resolving support issues to building long-term customer relationships through ongoing, collaborative engagement.

These shifts are creating a new software category. Software that brings the structure and speed of an AI-powered support platform, but works like customer success platform. We call this category customer collaboration; and we’re building Plain to be the definitive customer collaboration platform.

What Plain's support platform does and why you should use it

Plain enables you to:

• Work with customers where they are: High-touch channels like Slack, Microsoft Teams and Discord are now critical to B2B support. Plain makes it easy to manage conversations from 10 places, in one place.

• Deliver collaborative support: Support is a team sport. Plain enables better support by empowering teams to work together, tracking escalated issues for you, working with the tools you and your team already use, and helping your entire company – support, engineering, and customer success – work together seamlessly, fostering collaboration across all functions.

• Move faster with AI: Plain automates repetitive tasks, drafts responses, helps your team learn faster from your support, and enables you to extract product insights from customer interactions.

It’s also an exceptional product and a really well-crafted piece of software, if we do say so ourselves. Our customers love working in it. In the words of one of our customers: “Plain feels like the future.”

Companies like Sanity, Laravel, Stytch, Raycast and hundreds of others use Plain to power their support. Our goal is to help every company deliver better outcomes for their customers, align their teams around customer needs, and spend less time managing tools and workflows.

You can book a free 14 day trial here, fully supported by our team. We’d be happy to help with your migration, and if there’s a good fit, we’re happy to buy out existing contracts.

Key features of the platform

Plain’s platform is purpose-built to help companies deliver support that meets the evolving expectations of B2B customers. By integrating directly with high-touch communication channels like Slack, Microsoft Teams, and email, Plain enables customer success teams to manage all customer conversations in one unified platform. This seamless connectivity allows businesses to engage with customers in real time, wherever they prefer to communicate.

The platform’s AI-powered capabilities automate repetitive tasks, freeing up teams to focus on building long-term relationships and delivering value. Plain can draft detailed responses, extract actionable product insights from every customer interaction, and streamline workflows across support, success, and engineering. By consolidating multiple communication channels and automating routine work, Plain empowers businesses to respond faster, foster teamwork, and continuously improve customer success. The result is a support experience that not only resolves issues efficiently but also deepens customer engagement and drives better outcomes for everyone involved.

Who we’re partnering with

We’re thrilled to be partnering with Battery Ventures, a technology-focused investment firm. They’re an iconic fund we’ve looked up to for a long time. They’ve backed and helped build some of the most iconic B2B SaaS companies in the world, such as Amplitude, Braze, Databricks, Postman and Gainsight.

We’re especially excited to welcome Neeraj Agrawal to our board. His deep expertise in scaling SaaS businesses and deep knowledge of the support space make him an incredible partner for our journey. Our founders helped scale Deliveroo from a small startup to a large enterprise, and they bring that experience to Plain.

What we’re doing with the funding

First, we’re doubling down on our product to make Plain even more powerful and expand its AI capabilities. We’re already seeing teams beyond customer support get a lot of value from Plain – like customer success, engineering and product. Each of these teams plays a key role in delivering value to our customers. Our goal is to make Plain a platform that not only support can use, but one that every customer-facing team in the company can rely on to get closer to their customers. We see AI as pivotal in helping us achieve that, and we are also focused on developing advanced internal tooling to support our growth and enable seamless collaboration across teams.

Second, we’re expanding our team across every function – including sales, marketing, design and engineering. We are committed to building a strong design team and leveraging our expertise in design systems to ensure a high-quality, scalable product experience. If you obsess over building something great, we’d love to hear from you. You can read more about our open roles here.

Finally, we’re excited to be opening an office in San Francisco. Since day one, many of our customers have been in the US – and we’re excited about being able to work alongside them much more closely in the months and years to come.

Thank you to all of our customers, backers, supporters and mentors for your invaluable help in building Plain. While this fundraise represents a milestone, it’s every day in between milestones that matters the most – and we’re very grateful to get to spend our days building Plain with all of you. Matt's dedication to building a world-class product continues to drive our progress and success.

Link to press kit.

Conclusion and future plans

Plain’s $15M Series A funding round, led by Battery Ventures with continued participation from Index Ventures and Connect Ventures, marks a pivotal step in the company’s mission to transform B2B customer support. Simon Rohrbach and Matt Vagni, the visionary co-founders, are committed to building a platform that empowers teams, fosters collaboration, and unlocks valuable product insights from every customer conversation.

With the opening of a new office in San Francisco and plans to expand the team, Plain is poised to accelerate its growth and deliver even greater value to its customers. The company will continue to invest in deeper integrations, AI-powered workflows, and innovative features that set the standard for collaborative B2B support. As highlighted by Battery Ventures general partner Neeraj Agrawal, Plain is uniquely positioned to lead the shift towards unified, AI-driven customer support that prioritizes long-term relationships and seamless communication.

Backed by the expertise and support of Battery Ventures, Index Ventures, and Connect Ventures, Plain is ready to define the future of B2B customer support as the leading UK-based provider in this rapidly evolving software category. The journey ahead is bright, and the team is excited to help more businesses deliver exceptional support and build lasting customer success.