Home / Email lists / Metal heat treating service

Sample rows

10 of the 438 rows. Emails and phone numbers are masked here; the CSV has them in full.

What the list shows

Ohio has the most listings: 56 businesses, 39 of them with an email address. Michigan follows with 55.

86 rows (20%) carry one of 4 names used by 10 or more listings, led by Bodycote with 37. 286 businesses have a name used only once, and 307 of those have an email address.

The median Google rating of the 338 rated businesses is 4.6, and 135 have a perfect 5.0.

Of the 307 email addresses, 110 (36%) are role addresses such as info@, 153 (50%) name a person and 44 (14%) are free mail.

Source: ProfessionLens, November 2026.

What is in this metal heat treating service email list?

The metal heat treating service file has 438 Google Maps listings, counted on 9 November 2026. A row is a shop that hardens, tempers, anneals or case-treats metal parts for other manufacturers: a commercial heat treater with several furnaces, a vacuum furnace shop, a plant that also does plating or coating. A shop with one plant is one row.

An email address is present on 307 rows, taken from the shop's own site, one per business. Phone numbers are on 428 rows and websites on 391. Heat treaters list their capabilities, furnaces and certifications on their sites, so the website column is useful before you write.

Every row carries the category Metal heat treating service. You also get the shop name, street, city, state, ZIP and rating.

How can you segment the file?

Use Excel or Sheets to filter the CSV. With a single category on every row, place, name and email type provide the cuts.

Place is the main cut, because parts travel a limited distance. Customers prefer a heat treater within a day's trucking, and a seller of furnace parts or quench oil wants shops near its depot. The Ohio, Michigan and Indiana rows fall into one industrial belt.

A shop's name often points to its process. Words such as vacuum, induction, brazing, carburizing, nitriding, cryogenic, metallurgical or thermal point to a specialty. A shop named after its founder will not match, so read the site for those.

Email types split into 153 named-person addresses and 110 role addresses such as sales@ or quotes@. Named addresses are the larger group, which suits family and owner-run shops.

• State and city: a depot radius or a service territory.
• Name keyword: vacuum, induction, brazing, nitriding, thermal.
• Email type: owner or manager address, or the sales desk.
• Website present: shops whose furnaces and processes you can read.

Who buys a metal heat treating service email list?

Suppliers to the furnace floor buy this list first. Makers of heating elements, thermocouples, controllers and furnace refractory parts sell items every shop replaces. Quench oil, salt and process gas suppliers deliver materials on a schedule. Fixture and basket fabricators make the trays that carry parts through a furnace.

A second group sells testing and software. Hardness testers, metallography equipment and lab services check results. Software for batch records, scheduling and certificates helps a shop that must document each load. Furnace manufacturers and service technicians sell new equipment and maintenance.

The buyers can also sit on the other side. A machine shop, a tool maker or an aerospace supplier that needs a nearby heat treater can use the file as a list of vendors to ask for quotes. Freight carriers and insurance brokers who cover industrial plants use it too.

How do you run outreach to metal heat treating services?

Heat treaters run furnaces around the clock in many plants, but the office works business hours. The people who buy are the plant manager, the quality manager and the owner. Mail reaches them at a desk, so a mid-morning send works better than a late-night one.

Speak in process terms. A furnace parts seller should name the furnace type and the temperature range. A quench oil seller should state the grade and the delivery format. A customer looking for a heat treater should list the alloy, the process and the volume, since a shop answers quotes faster when it can see what the work needs.

With 153 named-person addresses and 110 role addresses, write two versions. The named group is likely an owner or a manager, and can take a direct offer. The role group reaches a sales or quote desk, so ask for the person who buys furnace supplies or who handles new work.

Open each website to find the processes a shop offers and the industries it serves. After the email round, call rows with no email at the start of the week, before furnace schedules fill. Group your calls by region to match your delivery route.

What email rules apply to metal heat treating services?

A commercial email to a heat treater must carry your valid postal address under CAN-SPAM, and it must offer a working opt-out that you act on. Once a plant manager unsubscribes, remove that address from every future send.

Which states and cities should you start with?

Ohio has 56 listings and 39 emails, and Michigan has 55 and 38. Texas has 41 and 29, California 38 and 27, Pennsylvania 25 and 18, and Indiana 24 and 17. Illinois has 18 and 13, Wisconsin 16 and 11, and Louisiana and North Carolina 11 and 8 each.

Cleveland has 10 listings and Houston 9. Santa Fe Springs, California has 6, and Rockford, Indianapolis, Warren, Detroit, Cincinnati, Tulsa and La Porte, Texas have 4 each.

Cleveland, Warren, Detroit, Cincinnati and Indianapolis sit within the same industrial region. A rep with a depot in Ohio can reach the heat treaters in these cities and in Michigan and Indiana by road. Houston and La Porte give Texas sellers a Gulf Coast pair.

What is in the list

Source: ProfessionLens, November 2026. Counted 9 November 2026.

Questions

Related email lists

All 1497 email lists

Source: ProfessionLens, November 2026. Counted 9 November 2026.

We pull the data fresh for every order. The share of businesses with an email address varies by niche.