Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: July 10, 2026

 

An industrial goods case interview is a consulting case set in the manufacturing and heavy-equipment world, where you solve a business problem for a company that builds machinery, components, or capital equipment for other businesses. This guide breaks down the sector's business model, the exact metrics interviewers expect you to know, the most common case types, and a full worked example so you walk in ready.

 

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Key Takeaways

 

An industrial goods case asks you to solve a problem for a maker of machinery or capital equipment, and the candidates who win these cases understand the business to business model before they build a structure.

 

• Industrial goods are sold to other businesses, in low volumes, at high price points, with long sales cycles

 

• Aftermarket parts and service carry far higher margins than new equipment, so always split the two

 

• Know six metrics cold: capacity utilization, equipment effectiveness, book-to-bill, backlog, aftermarket share, and segment margin

 

• The most common case types are profitability, operations, pricing, market entry, and merger work

 

• Reshoring, factory automation, and electrification are the trends shaping nearly every industrials case in 2026

 

What Is an Industrial Goods Case Interview?

 

An industrial goods case interview is a consulting case set in the manufacturing and heavy-equipment sector, where you solve a business problem for a company that makes machinery, components, or capital equipment sold to other businesses rather than consumers. The client is usually an original equipment manufacturer, a parts supplier, or an industrial distributor, and the problem often centers on capacity, cost, pricing, or aftermarket services.

 

This is one slice of the broader family of industry-specific case interview scenarios that MBB and other firms use. What makes it distinct is the vocabulary: terms like backlog, utilization, and installed base appear constantly, and candidates who only practiced retail and software cases freeze when they hear them.

 

The sector is large and growing. Industry research firm Mordor Intelligence values the global industrial machinery market at roughly $0.87 trillion in 2026, growing at an 8.3% annual rate through 2031, which is why consulting demand for industrials work stays strong.

 

Which Companies Count as Industrial Goods?

 

Industrial goods companies make the equipment, components, and materials that other businesses use to operate or produce things. They span several sub-sectors, and knowing which one your case sits in tells you most of what you need about the business model.

 

Sub-sector	What they make	Example companies
Heavy machinery	Construction, mining, and agricultural equipment	Caterpillar, Komatsu, Deere
Automation and controls	Sensors, controllers, and factory automation systems	Honeywell, Siemens, ABB, Rockwell
Electrical equipment	Motors, switchgear, and power management gear	Eaton, Schneider Electric, Emerson
Aerospace and defense	Engines, components, and defense platforms	GE Aerospace, Honeywell, TransDigm
Diversified industrials	Multiple equipment lines under one portfolio	Danaher, Illinois Tool Works, Parker Hannifin

 

The common thread is a business to business sale, a high price per unit, and a customer who keeps using the product for years. That long ownership period is where aftermarket revenue comes from, and it shapes how you approach almost every industrial goods case.

 

Why Do Consulting Firms Use Industrial Goods Cases?

 

Consulting firms use industrial goods cases because industrials is one of the largest practice areas at McKinsey, BCG, and Bain, and the work is rich with the kind of operational and strategic problems that make good cases. There are four reasons these cases show up so often.

 

• Big client base: manufacturers spend heavily on strategy, operations, and cost work, so firms staff large industrials teams

 

• Rich problem set: capacity, supply chain, pricing, and aftermarket questions all map cleanly onto case structures

 

• Tests business sense: the unfamiliar model separates candidates who memorized frameworks from those who can reason

 

• Quantitative depth: utilization, margins, and throughput give interviewers plenty of room to test your math

 

In my experience at Bain, industrials cases were among the most common I both received as a candidate and gave as an interviewer. They reward candidates who stay calm with unfamiliar terms and reason from first principles instead of forcing a generic template.

 

What Business Model Do Industrial Goods Companies Use?

 

Industrial goods companies make money in two distinct ways: selling new equipment and selling aftermarket parts and service for the equipment already in the field. Understanding this split is the single most important thing you can bring to an industrial goods case.

 

New equipment sales are large but cyclical and lower margin. When the economy slows, customers delay big capital purchases, so revenue swings hard with the business cycle.

 

Aftermarket revenue behaves very differently. According to McKinsey, an analysis across 30 industries found average EBIT margins of 25% for aftermarket services versus just 10% for new equipment. That service revenue is also far more stable, because customers must maintain machines they already own regardless of the economy.

 

The size of that aftermarket opportunity is large and often overlooked. McKinsey estimates that industrial companies focused on services can grow aftermarket revenue by 30% to 60% within three to five years without major new investment. When a case asks how to improve profits, the aftermarket is usually the first place to look.

 

What Metrics Should You Know for an Industrial Goods Case?

 

There are six metrics that show up again and again in industrial goods cases, and knowing what each one means lets you diagnose where a problem lives. Learn these before your interview so you are not decoding vocabulary in the middle of a case.

 

Metric	What it tells you
Capacity utilization	Share of total production capacity actually being used, a signal of demand strength and fixed-cost coverage
Overall equipment effectiveness	Factory efficiency measured as availability times performance times quality, a core operations metric
Book-to-bill ratio	New orders divided by orders shipped, where above 1.0 means demand is growing faster than output
Order backlog	Value of booked but not yet delivered orders, a read on future revenue and lead times
Aftermarket revenue share	Percentage of revenue from parts and service, which usually carries the highest margins
Segment EBIT margin	Profitability split between new equipment and services, which reveals where money is actually made

 

You will not need to recite definitions in the interview, but you should recognize each term instantly and know which lever it points to. Strong case interview math matters here too, since industrials cases lean heavily on capacity, throughput, and margin calculations.

 

What Are the Most Common Industrial Goods Case Types?

 

Five case types account for the vast majority of industrial goods cases, and each maps onto a familiar structure that you adapt to the sector. The key is layering the industrial business model on top of the standard approach.

 

Profitability cases

 

The most common type asks why profits are falling or how to improve them. In a profitability case interview for an industrial company, always split economics into new equipment and aftermarket, because a declining margin often hides a healthy service business propping up a weak product line.

 

Operations and cost cases

 

Manufacturing makes operations a natural focus, so expect questions on factory efficiency, throughput, and waste. An operations case interview here often turns on capacity utilization and overall equipment effectiveness, where small efficiency gains drop straight to the bottom line.

 

Pricing cases

 

Industrial pricing is its own discipline, especially for spare parts and service contracts where customers have few alternatives. A pricing case interview may ask you to value a proprietary component, set a service contract price, or move a client toward value-based pricing on mission-critical parts.

 

Market entry cases

 

Manufacturers constantly weigh new geographies, new equipment lines, and new customer segments. A market entry case interview in industrials hinges on the installed base and the service network, since entering a region without local parts and support rarely works.

 

Merger and acquisition cases

 

Industrials sees heavy deal activity as companies reshape portfolios and chase automation capabilities. An M&A case interview often centers on bolt-on acquisitions that add aftermarket exposure or fill a technology gap, which is exactly the deal logic playing out across the sector in 2026.

 

Case interviews are critical at every firm that recruits for industrials work. If you want to learn case interviews quickly, my case interview course walks you through proven structures and worked examples in as little as 7 days.

 

How Do You Structure an Industrial Goods Case Interview?

 

To structure an industrial goods case, clarify the objective and the client's place in the value chain first, then build buckets tailored to the case type with the new-equipment and aftermarket split baked in. Follow these five steps.

 

1. Clarify the objective: pin down the goal, the time frame, and any constraints before you structure anything
   
   
2. Map the value chain: identify whether the client is an equipment maker, a component supplier, or a distributor
   
   
3. Split the revenue model: separate new equipment economics from aftermarket parts and service from the start
   
   
4. Build tailored buckets: adapt a profitability, operations, or entry structure to the specific industrial context
   
   
5. State a hypothesis: commit to an early view on where the problem likely sits and test it with data

 

Standard case interview frameworks still apply, but the best candidates customize them rather than reciting a generic profitability tree. Always ask early where the client sits in the value chain, since a parts supplier and an equipment maker face completely different problems.

 

Industrial Goods Case Interview Example

 

Here is a worked example so you can see the model in action. Read the prompt, then try structuring it yourself before reading the approach.

 

Interviewer: Our client manufactures industrial pumps used in oil refineries and water treatment plants. Revenue has been flat for three years even though the installed base of their pumps keeps growing. The CEO wants to know why revenue is stalling and how to restart growth, so how would you approach this?

 

You: I would like to make sure I understand the goal. We want to explain flat revenue despite a growing installed base, and then find ways to grow. Is the objective revenue growth specifically, or overall profit growth?

 

Interviewer: Start with revenue, and we can discuss profit later.

 

The key insight is the gap between a growing installed base and flat revenue. A larger installed base should drive more aftermarket parts and service revenue, so something is breaking that link.

 

A strong structure splits revenue into new pump sales and aftermarket revenue, then digs into why the aftermarket is not growing with the installed base. Common culprits are customers buying parts from cheaper third parties, weak service coverage in growing regions, or pumps lasting longer and needing fewer parts.

 

My hypothesis would be that third-party parts suppliers are capturing aftermarket demand the client should own. The path to growth then runs through winning back that service revenue with better pricing, faster parts availability, and service contracts that lock in the installed base.

 

Practicing cases like this out loud with a partner is the fastest way to build the instinct. One-on-one feedback through interview coaching can sharpen how you handle unfamiliar industrial prompts under pressure.

 

What Industry Trends Should You Know?

 

Three forces are reshaping the industrials sector right now, and weaving them into a case signals real business sense to your interviewer. Each one creates the kind of strategic question that becomes a case prompt.

 

Reshoring and supply chain shifts

 

Manufacturers are moving production closer to home to reduce risk, and government incentives are accelerating the trend. This drives demand for domestic factory equipment and creates a wave of supply chain case interview questions about where to build and source.

 

Factory automation

 

Automation is one of the fastest-growing parts of the sector. Mordor Intelligence values the industrial automation market at roughly $238 billion in 2026, growing as labor shortages and reshoring push manufacturers toward robotics and smart-factory systems.

 

Electrification and sustainability

 

Equipment makers are racing to electrify diesel platforms and add energy-efficient products. Caterpillar's 2026 acquisition of autonomous electric tractor technology shows how legacy machinery firms are buying their way into this shift.

 

Deal activity ties these trends together. According to PwC, manufacturing mergers in 2026 are selective but meaningful, driven by reshoring, automation, and portfolio reshaping toward higher-value capabilities.

 

Tips to Master Industrial Goods Case Interviews

 

Tip #1: Always split new equipment from aftermarket

 

This is the single highest-value move in any industrial case. The two streams differ so much on margin and stability that lumping them together hides the real story.

 

Tip #2: Learn the sector vocabulary cold

 

Backlog, book-to-bill, and utilization should trigger instant recognition, not a pause. The candidates who stumble are usually the ones decoding terms mid-case instead of reasoning with them.

 

Tip #3: Anchor on the installed base

 

The base of equipment already in the field drives parts, service, and replacement demand. Many industrial growth and profitability problems are solved by mining the installed base harder.

 

Tip #4: Treat cyclicality as a given

 

New equipment demand swings with the economy, so never read one weak year as a structural decline. Ask whether a revenue drop reflects the cycle or a real loss of competitive position.

 

Tip #5: Practice with sector-specific prompts

 

Generic case practice will not build the industrials instinct you need. Run cases featuring real manufacturers and the kind of firms covered by top manufacturing consulting firms so the context feels familiar on interview day.

 

Master the industrial goods case interview by learning the business to business model first, drilling the six core metrics, and practicing real manufacturing prompts out loud, and the single most valuable habit you can build is splitting new equipment from aftermarket in every case you run.

 

Frequently Asked Questions

 

What is an industrial goods case interview?

 

An industrial goods case interview is a consulting case set in the manufacturing and heavy-equipment sector, covering companies that make machinery, components, and capital equipment for other businesses. You solve a business problem for an original equipment manufacturer, a parts supplier, or an industrial distributor, often involving capacity, cost, pricing, or aftermarket services.

 

Which companies count as industrial goods?

 

Industrial goods companies make products that other businesses use to operate or produce, rather than products sold to consumers. Examples include heavy machinery makers like Caterpillar and Komatsu, automation and controls firms like Honeywell, Siemens, ABB, Emerson, and Rockwell, and component suppliers across aerospace, energy, and construction.

 

How is an industrial goods case different from a consumer goods case?

 

Industrial goods are sold business to business, in low volumes at high price points, with long sales cycles and heavy aftermarket revenue from parts and service. Consumer goods are sold to individuals in high volumes at lower prices, where brand and retail distribution matter more than installed base and service contracts.

 

What metrics matter most in an industrial goods case?

 

Focus on capacity utilization, overall equipment effectiveness, the book-to-bill ratio, order backlog, aftermarket revenue share, and EBIT margin split between new equipment and services. These metrics reveal whether the problem sits in demand, factory efficiency, pricing, or the higher-margin service business.

 

How do you structure an industrial goods case interview?

 

Start by clarifying the objective and the company's position in the value chain, then build a structure tailored to the case type. For a profitability case, split revenue and cost drivers, and separate new equipment economics from aftermarket economics, since the two behave very differently on margin and stability.

 

Are industrial goods cases harder than other cases?

 

They are not harder if you know the business model. The unfamiliar vocabulary of capacity, backlog, and aftermarket trips up candidates who only practiced retail and tech cases. Learn the handful of sector metrics and the cases become as approachable as any other type.

 

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