Beginner’s Guide: Understanding Ideal Customer Profiles and How They Connect Marketing and Business Development

Marketers love talking about personas. They’re creative, people-focused and help us imagine what matters to the individuals we’re trying to reach. But when you start working more closely with business development, you’ll hear another term come up: Ideal Customer Profiles (ICPs).
ICPs may not sound as exciting as personas, but they’re a practical tool that helps marketing and BD get on the same page. And once you see how the two fit together, you’ll wonder how you ever ran campaigns without them.
ICPs vs. Personas: What’s the Difference?
It’s common to hear the terms “ICP” and “persona” used interchangeably, but they serve different purposes:
- Ideal Customer Profiles (ICPs): Outline the type of company your firm is best suited to work with, including size, industry, revenue, and geography. BD teams rely on ICPs to decide which organizations to pursue.
- Personas: Focus on the individual decision-makers inside those companies—what they care about, how they make decisions, and what challenges they’re trying to solve. Marketers use personas to shape messaging.
One way to think about it: your ICP defines the playing field, and personas help you understand the players on it.
Building an Ideal Customer Profile
Creating an ICP is about narrowing your focus to the companies that make the most sense for your firm. Start by thinking about:
- Company size – employees, locations or footprint
- Geographic reach – whether you’re targeting companies close to one of your office locations or are focusing on a specific region
- Industry focus – which sectors your firm has expertise in and wants to pursue
- Revenue range – businesses that fit your firm’s sweet spot for growth and profitability
It helps to bring BD into the process. They usually have firsthand insight into the clients who are a great fit (and the ones who aren’t). And remember: your ICP isn’t a “set it and forget it” exercise. As your firm grows and shifts, your ICP should evolve, too.
Tools to Build Your ICP List
Once you know what your ICP looks like, the next step is to build a list of companies that match it. This is where technology can help.
Platforms like Apollo or LinkedIn Sales Navigator let you filter by company size, revenue, location and industry. If you’re new to these tools, start simple. Run searches that align with the basics of your ICP, create a starter list, and refine it as you go. Over time, you’ll figure out what works best for your firm and where you get the strongest responses.
Why ICPs Matter for Both Marketing and BD
The real value of ICPs is the alignment they create. With a shared definition of your ideal clients, marketing and BD can stop debating “who we should go after” and start focusing on how to reach them.
Here are a few ways ICPs make an impact:
- Email list segmentation: Instead of sending broad messages, you can group prospects based on ICP criteria.
- Personalization: Marketing can fine-tune content for industries or revenue tiers, while BD can tailor outreach at the company level.
- Digital ad targeting: Ads can be directed to companies that fit your ICP, making campaigns more cost-effective and relevant.
Ultimately, ICPs take the guesswork out of who to target and how. They give BD teams a clear roadmap and give marketing teams a foundation for building campaigns that truly resonate.
Wrapping It Up
For me, learning about ICPs made many things click. Personas are still important, but ICPs provide the structure that gives your efforts focus.
If you’re earlier in your marketing career, this is a great area to explore. Start by drafting a simple ICP, share it with BD for feedback and see how it impacts your next campaign. It’s a practical way to build alignment—and a skill that will serve you well as your role grows.
About Taylor Bartosiewicz

Taylor Bartosiewicz is a Marketing Associate Level 3 for Yeo & Yeo, a leading advisory firm in Michigan. Her role is to support the marketing strategy of Yeo & Yeo's family of businesses. She creates marketing materials, including advertisements, blog content, and social media posts, to show how Yeo & Yeo helps its clients, community, and colleagues thrive.
Welcome to CPA Growth Trends — your source for information, insights, tools and best practices to drive growth within an accounting firm.
Beyond the Database: Building a CRM That Fuels Business Development
Nikki Burgeson | UHY-US
In this episode, Chris Camara speaks with Nikki Burgeson about the critical role of CRM systems in business development, particularly within professional services.