Donald Whalen

SVP of Customer Success
Donald leads Customer Success at Summize, bringing decades of experience across enterprise technology, startups, customer operations and commercial leadership. Having built and scaled customer-facing teams in fast-growth software businesses, Donald combines deep technical expertise with a practical, customer-first approach.
As Senior Vice President of Customer Success, Donald focuses on helping customers realize value quickly, building trusted partnerships and creating a scalable customer experience that supports Summize’s continued growth.
Donald, tell us about your career history and expertise.
I’ve spent my entire career in technology, starting out at IBM where I worked in a number of different technical and customer-facing roles over 13 years. Early on, I supported senior executives with their technical needs, from hardware and software setup through to troubleshooting and one-on-one training, which gave me a strong customer service foundation.
Later, I moved into IBM’s mobile computing division, which operated more like a startup inside a large enterprise. I’ve always enjoyed the technical side of the industry, but throughout my career people consistently told me I should move into sales and leadership roles, both of which eventually happened.
After IBM, I joined a startup business focused on mobile security and sales enablement software. I quickly realized I loved the pace and variety of a startup environment, where you’re exposed to a lot of different parts of the business rather than being one small cog in a larger machine.

Before becoming the SVP of Customer Success at Summize, I worked at Bigtincan as their first sales engineer, as well as the first customer success hire and implementation lead, before later leading large global customer-facing teams across customer success, support, professional services and sales engineering. Over my tenure, I also worked in a commercial sales role, which gave me valuable experience working directly with contracts, negotiations and the commercial side of the business.
Across everything I’ve done in my career, I’ve naturally worked well with others and I enjoy trying to help solve problems and make people’s jobs easier, which is the ultimate goal.
I think customers want to have a go-to person they can rely on who will help them work through their challenges.

What first attracted you to Summize?
When I first learnt about Summize, the thing that immediately attracted me to the company was the energy of the business. Summize has that fast-moving, collaborative environment that I’ve always enjoyed in high-growth companies and it was obvious to me that across the business there was strong alignment around the vision, the product and the culture.
More than that, the legal tech space is really interesting. Throughout my customer success and sales career, I’d seen first-hand how time-consuming and complex contract processes can become, particularly for commercial and legal teams trying to move quickly. Seeing how Summize’s contract lifecycle management (CLM) software could simplify that experience immediately resonated.
Above all, Summize is a business where I can combine my technical background, customer success experience and commercial understanding in a way that genuinely helps customers and supports their next stage of growth.
What does it mean to be SVP of Customer Success at Summize?
For me, customer success is about helping customers solve problems and making sure they get real value from the platform. A big part of that is understanding the product deeply and being able to step in and help when challenges arise, whether that’s around adoption, workflows, renewals or expansion opportunities.
I’ve always been someone who likes getting involved directly. Throughout my career, I’ve worked closely with customers, customer success managers, product teams and commercial teams to help move situations in the right direction. A lot of that comes down to asking the right questions, listening carefully and understand the root cause of a problem before bringing the right people together to solve it.
At Summize, customer success also has a strong commercial element. It’s not just about supporting customers day to day, but helping them grow their use of the platform over time and identifying where Summize can add value across the business.

I want my team to be seen as trusted advisors for our customers. Customers want to have a go-to person that they can rely on to help them solve challenges and get the most out of our CLM solution.
What do you find most interesting about the legal tech space?
What interested me most initially was seeing how much easier CLM tools like Summize can make contract processes easier for both legal and commercial teams. In the past, I’ve experienced first-hand how time-consuming contract reviews, negotiations and approvals can be.
But I’ve also known legal teams who were buried all the time under contract work. They constantly switch gears between different priorities while trying to keep track of contracts across the business. Using technology to simplify that process and make information easier to access is what makes the legal tech and CLM industry an interesting area to work in.
I also think there’s a huge opportunity beyond just legal teams. Sales, procurement and HR all interact with contracts in different ways, so helping customers expand usage across more parts of the business is what is vital to me and my team.
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What’s especially exciting now is the role AI can play in improving those workflows even further. It’s a hot topic these days, and there’s a real opportunity to help businesses work more efficiently and reduce a lot of the manual effort that traditionally sits around contracts.
What does the future look like at Summize, and what are you most excited about?
I’m so excited about helping individuals grow within the organization. One of the most rewarding parts of leadership for me has always been helping people develop new skills, move into different roles and progress in their careers. And then from a customer perspective, I’m excited about continuing to expand how customers use the platform across different departments and workflows. There’s a huge opportunity to deepen adoption and help customers get even more value from Summize over time.

What excites me most is the growth opportunity, both for the business and for the customer success function itself. As Summize continues to scale and bring on new customers, there’s a real opportunity to continue building out the team and evolving how we support customers globally.
