Turning innovative ideas into transformative outcomes.
213Linden Advisors partners with nonprofits, early-stage ventures, and growing businesses to build the strategies, operations, and financial frameworks that turn ambition into results. We bring nearly 30 years of executive experience — and we get the work done alongside you.
Why 213Linden
Our Mission
Most organizations don’t struggle because they lack great ideas. They struggle because they don’t have the time, bandwidth, or bench strength to execute them well. That’s where we come in.
213Linden Advisors brings senior-level expertise in strategy, operations, marketing, and finance to organizations that are ready to grow — but need the right partner to get there. We work alongside you, not above you, to turn your priorities into tangible results.
Who We Work With
Our clients span sectors, but share a common trait: they’re led by people who care deeply about their mission and are serious about building something that lasts. We’ve worked alongside organizations in:
CONSUMER TECHNOLOGY
Personal Services
Public & Social Impact
Wellness Services
Education
Entertainment
Healthcare
Quick Serve Restaurant
Legal Services
Hospitality
What We Do
We embed where you need us most. Whether you need a strategic plan, a financial model, an operations overhaul, or marketing leadership — we bring the same rigor and commitment to every engagement
LEADERSHIP AND ORGANIZATION
- Employee Structure
- Payroll & Benefits
- Employee Growth
- Incorporation
Corporate Operations
- Fractional COO
- Business Coordination
- Contract Management
- Project Management
Revenue & Marketing Strategy
- Fractional CMO
- Digital Media Strategy
- Revenue Creation
- Marketing Partnerships
- Loyalty Programs
Finance
- Fractional CFO
- Budgeting
- P&L
- Grant Reporting
- Financial Reporting
What Clients Say
“When we first partnered with 213Linden, our first audit was just months away. We had not secured an audit firm, and did not have the internal resources to navigate this critical organizational process. Within weeks, 213Linden took ownership of the entire undertaking—coordinating every moving piece, documenting our workflows, and making sure we had all the needed processes in place. What had felt like a mountain of risk turned into a clean audit. Now, our audit cycle is efficient and predictable. That peace of mind is hard to put a price on.”
“Before working with 213Linden, I had 25 years of experience but a personal brand that felt scattered—and honestly, I wasn’t comfortable with the self-promotion side of growing a firm. Allistair helped me distill all of that experience into a written personal brand and a bio that actually sounds like me. I didn’t just get an elevator pitch. I got the presentation training and the confidence to show up consistently and authentically in every client conversation. That’s been worth more than I expected.”
“What Allistair and Rachel built for us — the business plans, the frameworks, the strategic thinking — those materials still guide us. Even now, when I’m feeling lost in the weeds, I go back to those documents. Their work doesn’t just help you in the moment, it becomes the foundation you build everything else on.”
Most consultants hand you a strategy deck and walk away. We don’t.
We stay in the work with you — translating plans into action, building systems that hold, and making sure the momentum doesn’t stop when the engagement begins. Think of us as the executive leadership your organization didn’t know it could access.

Allistair James
Allistair is a strategic leader with more than 25-years in marketing and strategic partnerships, enhancing growth for both startups and public companies. His experience includes pivotal roles at T-Mobile, Yahoo! and DoubleDown Interactive, and collaborations with industry giants like Amazon, McDonald’s, and Ubisoft. As CEO and Co-Founder of 213Linden Advisors, Allistair delivers exceptional results for clients by developing and executing achievable growth and operations strategies.

Rachel Garcia James
Rachel is the Co-Founder of 213Linden Advisors and a seasoned operations leader with over 20 years of experience in both non-profit and commercial sectors. She has significantly boosted productivity for global sales teams and managed finance and operations for organizations in education and civil justice. Known for developing leaders, Rachel provides unparalleled organizational, operations, and strategic support to her distinguished clients.