Problem Definition
Kinfield Robotics is a four-year-old start-up that builds autonomous fruit-picking robots. Its robot is a mobile platform with machine-vision cameras and soft grippers. The same base platform takes one of two harvesting heads: a four-arm head for tree fruit grown on trellises, and a two-arm head for strawberries grown on raised "tabletop" gutters. Over the last two seasons Kinfield has run field trials in three regions: apple orchards in Washington State (USA), tabletop strawberry farms in the UK, and strawberry farms around Huelva in southern Spain.
The company has just closed an $18 million Series A. Its investors want to see real commercial revenue within 18 months. Kinfield does not sell robots. It uses a Robotics-as-a-Service (RaaS) model: it owns and maintains the fleet, and growers pay per unit of fruit picked (per bin of apples or per kilogram of strawberries), priced below what they pay human pickers today.
Harvest labour is one of the largest costs in fruit growing. In Washington, the Washington State University (WSU) 2024 apple cost study assumes a picking rate of approximately $37 per bin. In Huelva, labour is approximately 57% of the total cost of growing a hectare of strawberries. In the UK, growers depend on the Seasonal Worker visa, and the number of horticulture places was cut for 2026. Every region has a labour problem, but each problem is different. The management team does not have the money or the field engineers to launch in more than one region at once.
The CEO has asked your team: which market should Kinfield Robotics launch in first, and how should it build its first commercial fleet there?
Additional InformationAsk for dataInterviewer’s data
If asked, please share that:
- Of the $18M raised, the board has set aside approximately $11M to build the first commercial fleet. The rest pays for R&D, field engineers and runway.
- Kinfield has 40 employees. Twelve of them are field technicians, and they can support one region at a time.
- A tree-fruit robot costs approximately $108,000 to build. A tabletop-berry robot costs approximately $72,000. For comparison, a 2024 University of Essex project put the average price of existing crop-picking robots at around £150,000.
- The robot can only pick fruit it can "see" and reach: apples in modern two-dimensional trellis systems (not older free-standing trees), and strawberries grown on raised tabletops (not ground-grown beds).
- Kinfield's investors are mainly US-based, but none of them has said which market they prefer.
Question 1Structuring
How would you structure the decision of which market Kinfield should enter first?
Hint · Structuring
Build 3–4 branches that are specific to this client and question, not a generic framework. Check they don't overlap and together cover the problem.
Additional InformationAsk for dataInterviewer’s data
- This is a candidate-led case: let the candidate ask for data. Share the facts from the Problem Definition and Additional Information when they are asked for.
- If the candidate asks what "success" means: investors want a region where the fleet earns a positive contribution quickly and where Kinfield can build reference customers for a later Series B.
Try it first, then checkCheck my answerModel answer
A strong structure would evaluate each of the three markets on four branches:
1. Addressable market (how much picking spend the robot can win)
- a) Total harvest picking spend in the region (volume x human picking cost per unit)
- b) Share that is technically pickable by Kinfield's robot (trellised apples; tabletop strawberries)
- c) Growth of that share (are growers converting to robot-friendly systems?)
2. Unit economics per robot
- a) RaaS price Kinfield can charge vs. the human picking cost it replaces
- b) Utilisation: picking hours per day x season length x pick rate
- c) Operating cost per robot and build cost, giving payback on each robot
3. Grower pull (how urgent the need is)
- a) Labour availability: visa caps, reliance on seasonal migrant workers
- b) Labour cost trend: minimum wages, collective agreements, regulated farm wage rates
- c) Crop value and quality risk: will growers trust a robot with high-value fruit?
4. Kinfield's ability to execute
- a) Trial performance in each region (pick success rate, fruit damage)
- b) Field support: 12 technicians, time zones, distance from the team
- c) Fleet budget ($11M): how many robots it buys and what market share they represent
- d) Room to expand to a second region afterwards (e.g., with a different season)
What the interviewer is looking forInterviewer’s viewInterviewer’s view
Look for a structure that is specific to a robotics-as-a-service start-up, not a generic "market attractiveness vs. ability to win" template. The best structures notice early that the size of the harvest-labour pool matters less than how much of it the robot can actually pick, and how many hours per year each robot can work.
- Good candidates cover market size, competition, customer needs and economics.
- Strong candidates separate total picking spend from technically addressable picking spend (crop geometry), and bring in unit economics per robot (price vs. human cost, utilisation, capex).
- Excellent candidates also treat labour-market pressure as a driver of how quickly growers will adopt, and ask about execution constraints (12 field technicians, one region). They then propose an order for the analysis: size the market, then check unit economics, then check how urgently growers need a solution.
Candidate-led prompt: if the candidate stops after presenting the framework, ask "Where would you like to start?" The candidate should choose to size the addressable market or test the unit economics.
Question 2Numeracy
Using Exhibit 1, estimate the harvest picking spend that Kinfield's robot can technically address in each of the three markets. What does this tell you?
Hint · Numeracy
Write the formula before you plug in numbers, keep units and zeros explicit, and sanity-check the order of magnitude at the end.
Exhibit 1Harvest Volume and Picking Cost by Market
| Market | Annual volume (approx.) | Human picking cost (approx.) | Share technically pickable by Kinfield |
|---|---|---|---|
| Washington apples | 7.48 billion lb harvested (2024) | $37 per bin | 35% (trellised blocks) |
| UK strawberries | 93,000 tonnes (2025) | $0.95 per kg | 80% (tabletop) |
| Huelva (Spain) strawberries | 325,500 tonnes produced (Andalusia, 2025/26) | $0.75 per kg | 5% (raised / tabletop) |
Volumes: USDA NASS (Washington), Defra Horticulture Statistics 2025 (UK), Huelva sector data reported by HortiDaily (Spain). Apple picking rate: WSU 2024 Gala cost study. UK picking cost: Kinfield grower interviews (approximately 22 kg per picker-hour at approximately £16 per hour fully loaded). Huelva picking cost: derived from the Andalusian Price and Market Observatory cost study. Pickable shares: Kinfield estimates.
Source: Kinfield Robotics case file
Additional InformationAsk for dataInterviewer’s data
- Share Exhibit 1.
- If asked: a standard apple bin holds approximately 925 lb (WSU).
- If asked: Kinfield converts currencies at approximately £1 = $1.30 and €1 = $1.10.
- If asked about the Huelva picking cost: Kinfield assumes 70% of the approximately €44,597 per hectare labour bill is harvesting. Spread over approximately 45,631 kg per hectare, that is approximately €0.68/kg, or about $0.75/kg.
Try it first, then checkCheck my answerModel answer
Step 1: Washington apples
- Bins: 7,480M lb / 925 lb per bin = approximately 8.1 million bins
- Total picking spend: 8.1M x $37 = approximately $300 million
- Addressable (35% trellised): $300M x 35% = $105 million
Step 2: UK strawberries
- Total picking spend: 93,000 t = 93M kg x $0.95 = approximately $88 million
- Addressable (80% tabletop): 74.4M kg x $0.95 = approximately $71 million
Step 3: Huelva strawberries
- Total picking spend: 325.5M kg x $0.75 = approximately $244 million
- Addressable (5% tabletop): 16.3M kg x $0.75 = approximately $12 million
Summary
| Market | Total picking spend | Addressable spend | Addressable volume |
|---|---|---|---|
| Washington apples | ~$300M | ~$105M | ~2.8M bins |
| UK strawberries | ~$88M | ~$71M | ~74.4M kg |
| Huelva strawberries | ~$244M | ~$12M | ~16.3M kg |
So what: Washington has the largest addressable pool. Huelva looks big on total spend, but most of it is ground-grown fruit the robot cannot pick. The UK is smaller than Washington, but almost all of it is addressable, which makes it a concentrated, robot-friendly market. Size alone does not decide the question. We now need to know how much each robot earns in each market.
What the interviewer is looking forInterviewer’s viewInterviewer’s view
The candidate should calculate total picking spend first and then apply the technical addressability filter. The key insight is that the rankings change completely after the filter. Huelva has by far the largest strawberry picking bill, but only a small share of it can be picked by the robot. Washington has the largest addressable pool, and the UK is a mid-sized but concentrated one. Push the candidate to state that market size alone should not decide the first market.
Question 3Numeracy
Exhibit 2 shows Kinfield's expected per-robot economics from its trials. Calculate the annual contribution and payback period for one robot in each market. How many robots can the $11M fleet budget buy in each market, and what share of the addressable market would that fleet pick?
Hint · Numeracy
Write the formula before you plug in numbers, keep units and zeros explicit, and sanity-check the order of magnitude at the end.
Exhibit 2Per-Robot Economics (Kinfield Trial Data, Commercial Assumptions)
| Metric | Washington apples | UK strawberries | Huelva strawberries |
|---|---|---|---|
| Robot build cost | $108,000 | $72,000 | $72,000 |
| Pick rate per robot | 1.25 bins / hour | 15 kg / hour | 15 kg / hour |
| Picking hours per day | 16 | 20 | 20 |
| Picking days per season | 50 | 150 | 180 |
| RaaS price | $32 per bin | $0.80 per kg | $0.60 per kg |
| Human picking cost (for reference) | $37 per bin | $0.95 per kg | $0.75 per kg |
| Annual operating cost per robot | $14,000 | $12,000 | $12,000 |
Source: Kinfield Robotics case file
Additional InformationAsk for dataInterviewer’s data
- Share Exhibit 2.
- Contribution = RaaS revenue minus the robot's annual operating cost (technician time, transport, maintenance, connectivity). Ignore depreciation and head-office costs.
- Use the addressable volumes from Question 2 (approximately 2.8 million bins; 74.4M kg; 16.3M kg).
Try it first, then checkCheck my answerModel answer
Step 1: Output and revenue per robot
| Market | Output per season | Revenue per robot |
|---|---|---|
| Washington | 1.25 x 16 x 50 = 1,000 bins | 1,000 x $32 = $32,000 |
| UK | 15 x 20 x 150 = 45,000 kg | 45,000 x $0.80 = $36,000 |
| Huelva | 15 x 20 x 180 = 54,000 kg | 54,000 x $0.60 = $32,400 |
Step 2: Contribution and payback
| Market | Contribution per robot | Payback on build cost |
|---|---|---|
| Washington | $32,000 - $14,000 = $18,000 | $108,000 / $18,000 = 6.0 years |
| UK | $36,000 - $12,000 = $24,000 | $72,000 / $24,000 = 3.0 years |
| Huelva | $32,400 - $12,000 = $20,400 | $72,000 / $20,400 = ~3.5 years |
Step 3: Fleet size and market share with $11M
| Market | Robots ($11M / build cost) | Fleet output | Share of addressable volume | Fleet revenue | Fleet contribution |
|---|---|---|---|---|---|
| Washington | 11,000,000 / 108,000 = ~101 | ~101,000 bins | 101k / 2.8M = ~3.6% | ~$3.2M | ~$1.8M |
| UK | 11,000,000 / 72,000 = ~152 | ~6.8M kg | 6.8M / 74.4M = ~9% | ~$5.5M | ~$3.6M |
| Huelva | ~152 | ~8.2M kg | 8.2M / 16.3M = ~50% | ~$4.9M | ~$3.1M |
(Fleet revenue: 101 x $32,000 = $3.23M; 152 x $36,000 = $5.47M; 152 x $32,400 = $4.92M. Fleet contribution: 101 x $18,000 = $1.82M; 152 x $24,000 = $3.65M; 152 x $20,400 = $3.10M.)
So what: The UK gives the fastest payback and the highest fleet contribution, and it still leaves more than 90% of the addressable market to grow into. Washington has the biggest pool, but a 50-day season means each expensive robot is idle for most of the year. Huelva's economics are fine, but the first fleet would saturate the addressable market.
What the interviewer is looking forInterviewer’s viewInterviewer’s view
This is a multi-step calculation, so check the candidate sets it up clearly: output per robot, then revenue, then contribution, then payback, then fleet size. Key numbers: payback of 6.0 years (Washington), 3.0 years (UK) and approximately 3.5 years (Huelva). The insight is that utilisation (season length) matters more than price: apple robots are more expensive and only work for a short harvest window. Excellent candidates will point out that in Huelva the fleet would pick about half of all addressable fruit. That leaves almost no room to grow, so Huelva cannot be a stand-alone first market.
Question 4Judgement & Insights
Exhibit 3 compares the labour situation and Kinfield's trial performance in the three markets. What does it tell you about how quickly growers in each market will adopt robots?
Hint · Judgement & Insights
Read the exhibit title, axes and units first. Lead with the ‘so what’, then back it with one or two numbers.
Exhibit 3Labour Pressure and Trial Performance
| Indicator | Washington apples | UK strawberries | Huelva strawberries |
|---|---|---|---|
| Regulated farm wage | H-2A wage rate approximately $19.82/h (2025); 2026 rates under new DOL method expected to fall toward the state minimum wage | National Living Wage £12.21/h (2025) → £12.71/h (April 2026), +4.1% | Collective-agreement daily wage approximately €60.51 (2025) |
| Worker availability | US H-2A certified positions approximately 384,900 (FY2024) and growing | Seasonal Worker visas for horticulture: 43,000 (2025) → 41,000 (2026) | Relies on seasonal migrant workers; approximately 629 labour days per hectare |
| Labour as share of cost | Picking alone ~$37/bin (WSU) | High (grower interviews) | Approximately 57% of total cost per hectare (2024/25) |
| Crop value trend | WA apple crop value approximately $1.95B (2024) | UK strawberry value £454M (2025), +5.4% despite volume -5.7% | Cost per kg approximately €1.71, +4.9% vs 2022/23 |
| Kinfield trial: pick success rate | 78% | 92% | 90% (tabletop only) |
| Kinfield trial: fruit damage (robot vs. human) | 6% vs. 2% | 3% vs. 3% | 3% vs. 4% |
Sources: see Data Sources. Trial data: Kinfield Robotics, two seasons of trials.
Source: Kinfield Robotics case file
Additional InformationAsk for dataInterviewer’s data
- Share Exhibit 3.
- If asked: Washington growers told Kinfield that bruised apples are downgraded from fresh to processing fruit. For Washington growers in 2024, fresh apples sold for about $0.33/lb and processing apples for about $105 per ton, or about $0.05/lb (USDA NASS), a very large gap.
- If asked: UK tabletop growers already pick under polytunnels, so robots can work at night and in the rain.
Try it first, then checkCheck my answerModel answer
Reading the exhibit by market:
-
UK: strongest pull. Labour cost is rising: the National Living Wage went up about 4.1% in April 2026. Labour supply is shrinking: horticulture visa places fell from 43,000 to 41,000. Fruit is getting more valuable: the average price reached £4.89/kg and the crop is worth £454M despite lower volumes. The robot is already as good as a human on damage (3% vs. 3%) and succeeds on 92% of picks. Growers have a problem that is getting worse, and a solution that is proven.
-
Washington: weaker pull than the size suggests. The new DOL wage methodology lowers the H-2A wage floor, so the cost pressure that makes robots attractive is easing in the short term. H-2A supply keeps growing (approximately 384,900 certified positions nationally in FY2024). Most importantly, the robot damages three times as much fruit as a human (6% vs. 2%). Bruised fresh apples are downgraded to processing fruit, which sells for a small fraction of the price. A grower would lose more on downgraded fruit than the $5/bin saved on picking. The extra 4 points of damage on a 925 lb bin is about 37 lb. Moving 37 lb from fresh (
$0.33/lb) to processing ($0.05/lb, i.e. $105/ton) costs about 37 x $0.28 = ~$10 per bin, twice the picking saving. -
Huelva: real pressure, but the robot can pick little of the crop. Costs are rising (€1.71/kg, up 4.9%) and labour is approximately 57% of the cost per hectare, so the pull is real. But only about 5% of the crop is grown on tabletops. Adoption depends on growers converting beds to tabletops, which is a capital decision Kinfield does not control.
Implication: Grower adoption will be fastest where there is a worsening labour problem and proven robot quality. Only the UK meets both conditions today.
What the interviewer is looking forInterviewer’s viewInterviewer’s view
The candidate should read beyond "labour is expensive everywhere" and compare three things: the direction of labour pressure, availability of workers, and quality risk. In Washington, the new DOL wage methodology is reducing the H-2A wage floor, and the robot's bruising rate threatens fruit that sells at a premium. Both weaken the case for robots there. In the UK, wages are rising, visa numbers are falling, and trial performance is strong. Huelva has rising costs, but the robot can pick only a small share of the fruit.
Apply the "So What?" cascade when evaluating answers:
- Level 1 (surface): "Labour costs are rising in the UK and Spain, and the UK cut visa numbers" — this is reading the data
- Level 2 (implication): "UK growers face both a cost squeeze and an availability squeeze, while in Washington regulation is easing the cost pressure and the robot's quality performance is not yet good enough" — this shows pattern recognition
- Level 3 (actionable): "Launch where the grower's pain is growing and the robot is already proven (UK tabletop). Treat Washington as a later market once the apple head's damage rate is close to a human picker's" — this is strategic judgement
Question 5Synthesis
The CEO walks in and asks for your recommendation. What should Kinfield do?
Hint · Synthesis
Answer first: the recommendation, two or three reasons with numbers, then risks and next steps.
Additional InformationAsk for dataInterviewer’s data
- If the candidate raises it, share: Huelva's strawberry harvest peaks from about February to May, while UK tabletop picking runs from about May to October. Moving a robot between the two regions costs approximately $4,000 per year.
Try it first, then checkCheck my answerModel answer
Recommendation: Launch in UK tabletop strawberries first, with a fleet of about 150 robots.
1. Best unit economics. Each UK robot earns about $24,000 contribution a year and pays back in about 3.0 years, against 6.0 years in Washington. The $11M fleet (about 152 robots) generates about $5.5M revenue and $3.6M contribution a year. That is the highest of the three markets, which gives investors the commercial proof they want.
2. Room to grow. The first fleet picks only about 9% of the approximately $71M addressable UK pool. Kinfield can keep adding robots without saturating the market, which it could not do in Huelva.
3. Strongest grower pull. Wages are rising, visa places are falling, fruit values are rising, and the robot already matches human quality in UK trials.
Expansion path:
- Year 2: Huelva as a "winter season" for the same fleet. If a robot picks 90 days in Huelva (15 x 20 x 90 = 27,000 kg x $0.60 = $16,200) and then 150 days in the UK ($36,000), revenue is $52,200. Operating cost is $12,000 plus $4,000 relocation, or $16,000. Contribution is about $36,200, and payback falls to about 2.0 years ($72,000 / $36,200).
- Year 3+: Washington apples, only once the apple head's damage rate is close to 2%. Washington remains the biggest prize (~$105M addressable) and a US reference would help a US-led Series B.
Key risks and mitigations
| Risk | Mitigation |
|---|---|
| Robots underperform the 15 kg/hour trial rate at commercial scale | Price in the first contracts is per kg, so the grower's risk is low. Add a performance clause and roll out in waves of 30–40 robots |
| UK government raises visa numbers again | The case also rests on rising wages and night picking. Lock in 3-year RaaS contracts with anchor growers |
| Field support is stretched (12 technicians, ~150 robots) | Cluster the fleet on a few large growers in one region. Hire UK-based technicians |
| Currency risk (costs in $, revenue in £) | Build robots in or source components from the UK/EU where possible. Hedge part of the revenue |
Next steps: sign 3–5 anchor UK growers before the 2027 season, build the first 40 robots, and set a gate at the end of season one (pick rate ≥ 14 kg/h, damage ≤ human) before building the rest of the fleet.
What the interviewer is looking forInterviewer’s viewInterviewer’s view
The candidate should give a clear answer first, backed by the numbers from Questions 2–4, then list risks and next steps. Excellent candidates will spot that the Huelva and UK seasons barely overlap. A shared fleet could pick in Huelva in late winter and spring and in the UK in summer, which cuts the payback period from about 3 years to about 2. They will present this as a second step to test, not part of the first launch.
- Good candidates recommend the UK with 2–3 supporting reasons.
- Strong candidates size the first fleet, quantify contribution and name the main risks.
- Excellent candidates add the Huelva–UK fleet-sharing idea as the expansion path and set clear go/no-go gates for Washington.
Data Sources
Company figures for Kinfield Robotics (fleet budget, robot costs, trial results, RaaS prices, pickable shares, UK picking cost estimate) are invented for this case. Market facts come from the sources below. Figures are rounded for interview math.
- Washington apple bearing acreage 174,000; 7.48 billion lb harvested; utilized value approximately $1.95B (2024); fresh $0.33/lb vs. processing $105/ton (2024) → USDA NASS Northwest Regional Field Office, Fruit press release (Oregon and Washington), 2025, https://www.nass.usda.gov/Statistics_by_State/Washington/Publications/Current_News_Release/2025/FRUIT.pdf
- Apple picking rate approximately $37 per bin; bin size 925 lb; 2024 hand-labour rate based on the $19.25 AEWR → Washington State University Extension, 2024 Cost and Return Estimates of Establishing, Producing, and Packing Gala Apples (TB107E), 2025, https://wpcdn.web.wsu.edu/cahnrs/uploads/sites/5/TB107E_2024-Gala-Enterprise-Budget.pdf
- Washington H-2A AEWR $19.82/hour (effective December 2024); new methodology expected to bring rates below the state minimum wage → WAFLA / Yakima Herald-Republic, New regulations will lower wages for H-2A farmworkers, 2025, https://www.yakimaherald.com/news/local/business/new-regulations-will-lower-wages-for-h-2a-farmworkers/article_ff7d659a-f3c2-47d3-8cb5-6bc15dfbc407.html
- New AEWR methodology rule (skill levels, housing adjustment) → U.S. Department of Labor, Federal Register: Adverse Effect Wage Rate Methodology for the Temporary Employment of H-2A Nonimmigrants in Non-Range Occupations, 2025, https://www.federalregister.gov/documents/2025/10/02/2025-19365/adverse-effect-wage-rate-methodology-for-the-temporary-employment-of-h-2a-nonimmigrants-in-non-range
- Approximately 384,900 H-2A positions certified in FY2024 → U.S. Department of Labor OFLC, H-2A Selected Statistics FY2024 Q4, 2024, https://www.dol.gov/sites/dolgov/files/ETA/oflc/pdfs/H-2A_Selected_Statistics_FY2024_Q4.pdf
- UK strawberries 93,000 tonnes, £454M value (+5.4%), £4.89/kg, volume -5.7% (2025); planted area approximately 4,602 ha → Defra, Horticulture Statistics 2025, 2026, https://www.gov.uk/government/statistics/latest-horticulture-statistics/horticulture-statistics-2025
- Seasonal Worker visa: 43,000 horticulture places (2025) → 41,000 (2026) → DavidsonMorris, Seasonal Worker Visa UK Guide 2026 (summarising the UK Immigration Rules), 2026, https://www.davidsonmorris.com/seasonal-worker-visa-uk/
- UK National Living Wage £12.21 (2025) → £12.71 per hour from April 2026 → Bishop Fleming, What is the National Living Wage from April 2026?, 2026, https://www.bishopfleming.co.uk/insights/what-national-living-wage-april-2026
- Existing crop-picking robots cost on average around £150,000 → University of Essex, Strawberry-picking robot to speed up harvest and tackle labour crisis, 2024, https://www.essex.ac.uk/news/2024/10/10/strawberry-picking-robot-to-speed-up-harvest-and-tackle-labour-crisis
- Huelva cost per hectare €77,969; labour €44,597/ha (approximately 57%); 629 labour days/ha; yield 45,631 kg/ha; €1.71/kg (+4.9% vs 2022/23); daily wage €60.51 (2025) → To be Berry, The real cost of a kilo of strawberries in Huelva (citing the Andalusian Price and Market Observatory), 2026, https://www.tobeberry.com/en/calidad/2026/03/precio-fresas/
- Andalusian strawberries (almost all grown in Huelva) 6,835 ha; total production 325,500 tonnes, up 2.5% (2025/26) → HortiDaily, Huelva's berry sector weathers a difficult season with mixed results across crops, 2026, https://www.hortidaily.com/article/9874219/huelva-s-berry-sector-weathers-a-difficult-season-with-mixed-results-across-crops/
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