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How to size local services markets.

The right way to size a local services market, why most national reports mislead, and the data sources that actually work.

The bottom-up answer

Local services TAM is a bottom-up calculation, not a top-down allocation. It is the product of three numbers, each measured at the local level.

  1. Demand units in the trade area. Households for residential categories, businesses for commercial categories. The right resolution is the metropolitan statistical area (MSA) or, for intra-MSA analysis, the census tract.
  2. Vertical-specific penetration. What share of those units buys the category in a given year. Penetration is highly local and depends on demographics: household income, age, climate, density.
  3. Average annual spend. Spend per buyer, adjusted to the local cost-of-living and wage environment.

Each number has to be derived from real data, not assumed. Get any one wrong and the TAM can be off by 2x in either direction.

Why national reports mislead

The standard deck cites a national IBISWorld or Statista figure as the TAM. For a location- or route-based business, this is the wrong number for three reasons.

  • Category blending. National reports lump residential, commercial, and new-construction HVAC together, when each has different unit economics, customer dynamics, and growth drivers. They report a number that does not map to anything a platform actually sells.
  • Top-down assumptions. National reports are usually built by allocating broad GDP or consumer-spending pools to categories. They do not aggregate up from real local data, so they cannot tell you whether the next MSA has more or less than the national average penetration.
  • Wrong audience. The reports are written for marketing teams and industry conferences, not for diligence. The methodology is opaque and the granularity is too coarse for a decision that lives MSA-by-MSA.

National reports are a useful sanity check. They are not a TAM source.

The data sources that actually work

Public

  • U.S. Census (ACS). Household counts, household income, age bands, household formation, by census tract.
  • BLS. Employment, wages, occupation distribution by MSA.
  • IRS County Business Patterns and Census Business Patterns. Establishment counts by NAICS code by county. Useful for vertical-specific operator counts.
  • BEA. Regional personal income and consumer spending breakdowns.

Commercial

  • Google Places. Live operator data with addresses, phone numbers, ratings, categories. Messy and full of duplicates; requires resolution.
  • Apollo and similar firmographic databases. Revenue, employee count, year founded for operating businesses.
  • Vertical-specific databases. NFDA for funeral, AVMA for veterinary, ADA for dental, and so on.

Proprietary

  • Customer interviews. The check on penetration and spend assumptions.
  • Channel and operator calls. The check on competitive density and unit economics.

Where PinpointIQ fits

PinpointIQ is the productized version of the bottom-up local TAM workflow above. For 900+ U.S. MSAs across 30+ verticals, we merge the public, commercial, and proprietary data into a single platform.

  • Segment-decomposed TAM for every MSA and every vertical.
  • Resolved, deduplicated competitive landscape with firmographic fields. One row per real-world business.
  • Census-tract demographic data joined to vertical establishment counts.
  • White-space maps highlighting under-served tracts inside each MSA.
  • Custom MSA tags and business layers for cross-deal reuse.

Built by 2nd St Strategy, a boutique commercial diligence and growth strategy firm.

What changes in your process

The TAM artifact stops being a slide built once in Excel and starts being a live data layer the team can flex and probe. Add an MSA to the consideration set, the TAM updates. Change the penetration assumption, the TAM updates. Drop in a candidate acquisition target, the competitive density and white-space picture updates.

Contact us.

FAQ

Common questions.

How do you size a local services market?

Bottom-up. Start with the households or businesses in the trade area, multiply by category penetration, multiply by average annual spend. The three numbers all need to be local: tract or MSA households, vertical-specific penetration, and a regional spend curve. Top-down national reports are a useful cross-check but should never be the primary number.

What is the right geographic unit for local market sizing?

Metropolitan statistical area (MSA) for most work, census tract when you need to see white space inside an MSA. ZIP codes are unstable, county lines are arbitrary, and state-level numbers blur dynamics that matter. MSAs match the labor shed and the customer trade area for location-based services.

What data sources are usable for local TAM?

Public data: U.S. Census (ACS) for households and demographics, BLS for wages and employment, IRS County Business Patterns and Census Business Patterns for establishment counts by NAICS, BEA for income and spending. Commercial: Google Places, Apollo, vertical-specific databases for operators. Proprietary: customer interviews, channel checks, expert calls. The right TAM uses all three.

Why are national market reports unreliable for local services?

Three reasons. They blend categories with very different local dynamics into one number. They use top-down assumptions that do not aggregate up from real local data. They are written for a marketing or industry audience, not a diligence audience, so the methodology is often opaque. National reports are useful as a sanity check, not as a primary TAM source for a local services business.

How does PinpointIQ approach local market sizing?

PinpointIQ provides bottom-up MSA-level TAM for 900+ U.S. markets across 30+ verticals. TAM is decomposed by segment (e.g., residential vs. commercial HVAC) and by demographic driver (e.g., household formation, age 65+, household income). The competitive landscape is resolved and deduplicated so penetration can be measured against real operators. Everything joins down to the census tract.

See PinpointIQ in your verticals.

Contact us and we will walk through your target MSAs live.

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