Market sizing built bottom-up to show how much of the market you can win.

Market sizing estimates how many buyers a market holds and how much they spend, split into three layers: TAM, SAM and SOM. Nextyn builds each layer bottom-up from interviews and surveys with the buyers and distributors who know real volumes and prices, then checks the total against published top-down figures.

• TAM, total addressable market: all the revenue in the category if every potential buyer bought
• SAM, serviceable addressable market: the part your product, channels and countries can reach
• SOM, serviceable obtainable market: the share you can win against incumbents and switching costs

One Nextyn oncology study mapped adoption and whitespace across 160+ hospitals and labs.

Nextyn calculates market size bottom-up: the number of real buyers, multiplied by what each one buys, multiplied by the price paid. The same formula gives TAM for every potential buyer, then SAM and SOM once the buyers out of reach are removed.

1. Count the buyers: segment the market and size each segment from surveys, field checks and public data.
2. Measure volume and price: interview buyers and distributors on what they purchase and pay, as one Nextyn study did in 100+ workshop interviews across four European markets.
3. Cut to serviceable and obtainable: remove what the product, channels and competition put out of reach.
4. Reconcile with top-down: compare the result with published reports and explain each difference.

Interviewees, including former employees, speak only about their own purchases, operations and general market knowledge, never confidential company information.

A Nextyn market sizing study delivers a TAM, SAM and SOM model with low, base and high cases, and the research plan sent within 48 hours of the brief lists every output in scope. The model rests on interviews and surveys gathered for the client's own product, segments and price, not on one published total.

Outputs in scope include:

• TAM, SAM and SOM model: total to obtainable market, with low, base and high cases
• Assumptions log: every key assumption traced to the interview, survey or public source behind it
• Segment and market ranking: segments and countries ranked on size, growth and reachability
• Demand forecast: market growth by segment, driven by what buyers describe
• Top-down cross-check: the bottom-up total set against published reports
• Interview read-out: every interview read back together with the client

Nextyn runs market sizing research in the United States, the United Kingdom and across Europe, with studies in Germany, France, Italy and Spain, and the markets in scope are agreed at scoping. One study can cover one country or many: a single Nextyn payments survey reached 13,000+ respondents across 28 countries.

Nextyn studies that measured sizing inputs include:

• A survey of 300 SME merchants in the UK on how in-store sales split by payment method
• 100+ face-to-face interviews with OEM-authorized workshops across four European markets
• Surveys and interviews across 160+ hospitals and labs in multiple regions, mapping oncology NGS adoption and whitespace
• 40+ interviews with importers, distributors and installers in the USA, Canada and Germany

Nextyn prices each market sizing study to its scope and states the price in the research plan sent within 48 hours of the brief. The plan names who will be interviewed, how, and what the work costs, and nothing is commissioned until the client approves the plan.

Four things drive the cost of a Nextyn market sizing study:

• The number of countries and segments sized
• How hard the buyers are to reach, from shoppers to hospital lab directors
• The mix of interviews, surveys and field checks each input needs
• How many years the demand forecast covers

A one-country, one-segment sizing and a multi-country model each get their own price.

Nextyn sends a research plan within 48 hours of receiving the brief, and that plan sets the fieldwork timeline for the markets and segments in scope. A one-country sizing built on buyer interviews and a multi-country model with surveys and field checks each get their own timeline, stated before anything is commissioned.

1. Submit the brief: the product, the markets and the decision the number must support.
2. Receive a plan within 48 hours: who Nextyn will interview, how, and what the work costs.
3. Approve the plan: fieldwork starts only after sign-off.
4. Review the read-out: every interview read back together, with the same research lead who took the brief.

In one Nextyn study, an in-person survey of 300 UK SME merchants across 11 categories was delivered in under two months.

Nextyn market sizing builds the number for one client's product, segments and price from new buyer evidence, while a published market research report gives every reader the same top-down total. A syndicated report is useful context; primary research shows how much of that total one product can serve and win.

Nextyn can refresh a market sizing model on an agreed schedule, re-running the interviews and surveys behind the inputs that move most. Each refresh keeps the same segments, definitions and sources, so a change in TAM, SAM or SOM reflects the market rather than a new method.

Three events make a refresh worth commissioning:

• A major competitor changes price or enters a new segment
• A new regulation changes who can buy or sell in a sized market
• An annual plan or investment case needs a current number

The research plan for each round arrives within 48 hours of the brief and states who will be interviewed, how, and what the work costs.