The AgencyHabits Podcast

Profit on paper doesn't pay the bills. Learn the best practices for designing payment terms and invoicing cadences to create a smooth, predictable cash flow.

In this episode, Peter Kang and Sei-Wook Kim tackle one of the most critical yet misunderstood aspects of running an agency: cash flow management. They break down the dangerous gap between your P&L's accrual-based profitability and the real money in y...

Is your agency a "jack-of-all-trades, master of none"? In this episode, hosts Peter Kang and Sei-Wook Kim dive deep into the transformative power of agency specialization. They break down the critical difference between internal specialization and external positioning, and reveal why narrowing your focus is the ultimate growth accelerator for agencies under $10M in revenue.

Peter and Sei-Wook share Barrel ...

Agency profitability isn't always what it seems. In this episode, Peter Kang and Sei-Wook Kim break down how to really evaluate your agency's profit. The hosts also talks about why two agencies reporting the same margins can mean totally different things.

They unpack the difference between EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) and SDE (Seller's Discretionary Earnings), sh...

In this episode, hosts Peter Kang and Sei-Wook Kim break down the complex landscape of agency acquirers. They map out the six primary types of buyers, from individual entrepreneurs to massive strategic networks, explaining the distinct motivations, financial structures, and long-term goals for each.

In this episode, hosts Peter Kang and Sei-Wook Kim pull back the curtain on one of their most significant career transitions: stepping away from the day-to-day leadership of their first agency, Barrel, without selling the business. They define this strategic move as a "role exit" which is a path less discussed but highly relevant for founder-led businesses.

In this episode, hosts Peter Kang and Sei-Wook Kim dive into the practicalities of building a partnerships program for resource-constrained agencies. They argue that you don't need a dedicated partnerships team to start seeing significant benefits from strategic alliances.

In this episode, hosts Peter Kang and Sei-Wook Kim cut through the noise of data overload to share the essential metrics every agency should track. Moving beyond fancy dashboards, they break down the handful of key performance indicators (KPIs) that truly drive informed decision-making at their portfolio agencies under Barrel Holdings.

In this episode, hosts Peter Kang and Sei-Wook Kim dive deep into one of the most painful but inevitable aspects of running an agency: client churn. Drawing from decades of experience building and scaling agencies, they break down the most common reasons clients leave—from poor onboarding and missed deadlines to unresponsive communication and misaligned expectations.

In this episode, hosts Peter Kang and Sei-Wook Kim pull back the curtain on one of the most critical yet often overlooked aspects of scaling an agency: organizational design. Starting from their own early days as a flat, "all-hands-on-deck" team, they trace the evolution of their org chart at Barrel as they grew, specialized roles, and built departments.

In this episode, hosts Peter Kang and Sei-Wook Kim dive into one of the most challenging but necessary decisions agency leaders face: when and how to let go of clients. As agencies grow, not every client remains a good fit. Peter and Sei-Wook break down the key factors to consider when evaluating your client roster, from strategic alignment and profitability to relationship quality and payment behavior.

In this episode, hosts Peter Kang and Sei-Wook Kim dive into the core habits that have driven their agencies' success over the years. From structured team reviews and client communications to proactive outreach and financial discipline, they break down 10 essential routines (plus a few bonus ones) that help agencies improve continuously, stay aligned, and grow sustainably.

In this episode, hosts Peter Kang and Sei-Wook Kim talk about the critical yet often overlooked topic of cashflow management for agencies. They share lessons on balancing profitability with liquidity, designing client contracts to align cash inflows with outflows, and determining the right amount of cash reserves to weather uncertainties.

In this episode, hosts Peter Kang and Sei-Wook Kim take listeners on a journey back to their agency's origins, sharing hard-won insights about building a business from scratch with limited connections and resources. They explore the strategies that helped them jumpstart Barrel 19 years ago, from leveraging personal networks to building lasting client relationships that compound over time.

In this episode, Peter Kang and Sei-Wook Kim dive deep into agency specialization and how narrowing focus has become a key driver of growth across their Barrel Holdings portfolio. From the evolution of Barrel's journey from generalist to CPG eCommerce specialists, to the strategic positioning of BX Studio as Webflow experts, they share practical insights on when and how to specialize.

In this episode, Peter Kang and Sei-Wook Kim tackle one of the most confusing aspects of agency financials: how to properly calculate profitability. They break down the critical difference between SDE (Seller's Discretionary Earnings) and EBITDA, explaining why these metrics can paint vastly different pictures of the same business.

In this episode of Agency Habits, Peter Kang interviews Sei-Wook Kim on the inner workings of agency acquisitions and valuations at Barrel Holdings. They break down the exact criteria they use when evaluating whether to acquire an agency and explain the logic behind their valuation framework: what increases the price, what brings it down, and how seller goals shape the final deal.

In this inaugural episode, Peter Kang and Sei-Wook Kim share the unfiltered origin story behind Barrel Holdings. From their humble beginnings building table-based websites in college to growing a multi-agency portfolio serving CPG brands, startups, and enterprise clients, this conversation charts nearly two decades of lessons in agency building, client service, and entrepreneurial evolution.