James Chillman

Your HubSpot isn’t the problem. How it was built is. | HubSpot Gold Partner | Founder, Revenue Amp

📍 United Kingdom🔄 Updated July 2026💼 3 investments📅 3 years investing🗓 Last invested Apr 2023
Operator-angel🌍 United Kingdom
3
Total investments
2
Early stage
0
Mid stage
0
Late stage
3y
Years active

Portfolio

3 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Angel Investor
Apr 2023
StackOne is the integration infrastructure for AI agents to act. 200+ connectors, 10k+ actions, and the AI builder tools to customize or build your own. StackOne turns AI agents into powerhouse that can act like your and for you. At the core is Falcon, our state-of-the-art, code-first, execution engine. Falcon executes multi-step AI actions accurately, reliably, and securely, optimizing for tool-calling accuracy, token efficiency, and low latency. Falcon interfaces with your agent via MCP, A2A, or API calls for traditional apps RPCs and any app interface (REST, SOAP, GraphQL, Private APIs, browserless). StackOne’s managed infrastructure handles multi-tenant authentication, permissions, and observability out of the box—so teams can focus on designing agency, not building the plumbing. We’re built for enterprise trust: SOC2, GDPR, HIPAA, and CCPA compliant. Real-time execution with no data storage. Ship faster. Execute better. Scale with confidence. StackOne is the platform for production-ready autonomous agents.
Angel Investor
Apr 2023
Find out why thousands of other business buyers and founders use Foundy for a streamlined, transparent acquisition process. Sell your business via Foundys end-to-end platform
Member & Angel Investor
Mar 2023
We are an investment community & syndicate built exclusively for experienced go-to-market operators and professional investors. Our members are some of the best go-to-market practitioners in Europe and are driving the growth of the fastest-growing companies in the world. Founders can raise money from people who understand what it takes to generate revenue. Our members can help them build their revenue engine and scale from zero to exit.
Experience · 6 entries
All (6)
Investments (3)
Founder (1)
2024
Founder
Sep 2024
We help tech startups accelerate their growth by making HubSpot work for them. Whether you’re migrating to HubSpot or improving adoption, we simplify the process to deliver faster CRM setup, better forecasting, and higher user engagement. Our tailored solutions eliminate overwhelm, improve reporting accuracy, and free up account executives to spend less time in the CRM and more time closing deals. With our expertise, your sales team gains clarity, efficiency, and the tools needed to drive profitable efficient growth."
2023
Angel Investor
Apr 2023
StackOne is the integration infrastructure for AI agents to act. 200+ connectors, 10k+ actions, and the AI builder tools to customize or build your own. StackOne turns AI agents into powerhouse that can act like your and for you. At the core is Falcon, our state-of-the-art, code-first, execution engine. Falcon executes multi-step AI actions accurately, reliably, and securely, optimizing for tool-calling accuracy, token efficiency, and low latency. Falcon interfaces with your agent via MCP, A2A, or API calls for traditional apps RPCs and any app interface (REST, SOAP, GraphQL, Private APIs, browserless). StackOne’s managed infrastructure handles multi-tenant authentication, permissions, and observability out of the box—so teams can focus on designing agency, not building the plumbing. We’re built for enterprise trust: SOC2, GDPR, HIPAA, and CCPA compliant. Real-time execution with no data storage. Ship faster. Execute better. Scale with confidence. StackOne is the platform for production-ready autonomous agents.
Angel Investor
Apr 2023
Find out why thousands of other business buyers and founders use Foundy for a streamlined, transparent acquisition process. Sell your business via Foundys end-to-end platform
Member & Angel Investor
Mar 2023
We are an investment community & syndicate built exclusively for experienced go-to-market operators and professional investors. Our members are some of the best go-to-market practitioners in Europe and are driving the growth of the fastest-growing companies in the world. Founders can raise money from people who understand what it takes to generate revenue. Our members can help them build their revenue engine and scale from zero to exit.
2020
Associate Member
Dec 2020
Pavilion is the world’s #1 private community for go-to-market leaders in B2B tech to connect, learn, and grow. With 10,000 members and counting, you’ll have access to an exclusive Slack community, local and global events, comprehensive courses through Pavilion University, and over 1,300 resources in our curated knowledge hub. Visit joinpavilion.com to learn more and become a member today.
mid stageThink Tanks
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