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HVAC Companies in Western & Central New York (B2B Dataset)

1,278 active HVAC, heating/cooling, refrigeration, mechanical and sheet-metal businesses registered with the New York Department of State in 16 Western/Central NY counties (Buffalo, Rochester, Syracuse and surrounding areas), cleaned, deduplicated and enriched with phone numbers and websites verified on the companies' own sites.

Built for B2B vendors that sell to HVAC contractors: equipment and parts suppliers, dispatch / field-service software, financing, insurance and marketing agencies.

Access

This is a gated dataset. Access is approved manually after purchase.

Buy the dataset (the purchase includes a downloadable zip with CSV + Parquet + LICENSE).
Click Request access on this page and enter your company, intended use and your Gumroad order ID.
Access is approved once the order is confirmed.

Purchase link: https://dbtaametrics83.gumroad.com/l/hvac-western-ny

Free public preview (20 rows, no approval needed): https://huggingface.co/datasets/zook4/hvac-western-ny-sample

Files

File	Description
`data.parquet`	Full dataset (primary; drives the dataset viewer)
`data.csv`	Same data as CSV
`sample.csv`	20 random high-confidence rows
`build.py`, `card.py`	Reproducible build script (pulls the registry, filters, enriches, writes files)
`LICENSE`	Commercial license terms

Schema

Field	Type	Description
`company_name`	string	Current legal entity name as filed with NY DOS (whitespace-normalized)
`dos_id`	string	NY Department of State entity ID (unique key)
`address`	string	Business street address only (see Privacy). Blank when it could not be confirmed as a business address
`city`	string	City of the business address (or of the registry's process address when the street is withheld)
`state`	string	State
`zip`	string	ZIP code
`county`	string	NY county as filed with DOS (registry `county` field = county of the entity's office)
`initial_filing_date`	date (YYYY-MM-DD)	Initial DOS filing date
`entity_type`	string	e.g. DOMESTIC LIMITED LIABILITY COMPANY, DOMESTIC BUSINESS CORPORATION
`phone`	string	Business phone taken from the company's own website (tel: link or contact page)
`website`	string	Company website, found and verified independently (page names the company and its NY city/ZIP or registry address)
`owner_name`	string	Chairman/CEO name from the DOS registry (filed by corporations only; LLCs do not file one)
`place_id`	string	Google Place ID only (no other Google data is included); blank if none
`address_basis`	string	Where the address came from, or why it was withheld
`hvac_match_term`	string	Name keyword that qualified the entity
`match_confidence`	string	`high` = explicit HVAC term (HVAC, heating, cooling, A/C, refrigeration, furnace, boiler, geothermal, duct, heat pump); `medium` = mechanical / sheet metal / climate control / comfort systems
`source`	string	Registry source
`enrichment_source`	string	Per-field provenance, e.g. `phone:company_website;website:company_website;owner_name:ny_dos_chairman_ceo_field`
`enrichment_url`	string	Page(s) the website/phone were verified on
`last_verified`	date	Date this record was built/verified

Coverage (2026-10-06)

Field	Coverage
company_name, dos_id, county, entity_type, initial_filing_date	100%
city	99.8%
zip	99.7%
phone	10.1%
website	10.5%
owner_name (corporations only)	27.9%
address (business street address)	46.7%
place_id	23.5%

Match confidence: 829 high, 449 medium.

Address basis: registry_company_filed: 506, withheld_individual_or_unverified: 393, withheld_looks_residential: 155, withheld_agent_or_law_firm: 75, dos_process_company_named: 72, withheld_matches_individual_address: 56, principal_executive_office: 19, none_on_file: 2.

Website discovery checked 1,243 of 1,278 records (high-confidence and oldest first) within the crawl time cap; the rest have not been checked yet. Many registry entities are small owner-operator LLCs with no public business listing, so phone/website coverage is intentionally limited to what could be verified on the company's own website. Nothing is guessed.

Records by county

County	Records
Erie	328
Monroe	285
Onondaga	196
Niagara	117
Chautauqua	63
Oswego	47
Ontario	39
Wayne	36
Cayuga	33
Genesee	31
Livingston	26
Cattaraugus	19
Madison	19
Orleans	16
Wyoming	15
Allegany	8

Source

New York State Department of State, Division of Corporations, "Active Corporations: Beginning 1800", published on NY Open Data: https://data.ny.gov/d/n9v6-gdp6 (Socrata dataset id n9v6-gdp6). The dataset contains only entities with active status. Phone/website enrichment from the companies' own public websites.

Build method

Extract: SoQL query on n9v6-gdp6 for county in (Erie, Monroe, Niagara, Onondaga, Genesee, Orleans, Wyoming, Chautauqua, Cattaraugus, Allegany, Livingston, Ontario, Wayne, Oswego, Cayuga, Madison) and entity names containing HVAC-related terms (HVAC, HEATING, COOLING, AIR CONDITIONING, REFRIGERATION, MECHANICAL, FURNACE, COMFORT, BOILER, SHEET METAL, GEOTHERMAL, DUCT, HEAT PUMP, CLIMATE, AIR QUALITY): 3,750 candidate rows. County = the registry's filing county field (not derived from the address).
Filter: word-boundary keyword rules plus exclusion rules for false positives (e.g. "PRODUCTS"/"PRODUCTIONS" substring hits, comfort food/care/homes, automotive "mechanical", storage/moving "climate controlled", roofing-only "sheet metal", engineering/design firms, address-named entities) and for holding / realty / property / capital / investment entities, not-for-profits, trade associations, cooperatives and limited partnerships.
Clean: whitespace-normalized names, dedupe on DOS ID and on normalized name (legal suffixes and punctuation removed).
Enrich: owner name = DOS chairman/CEO field. Websites are found independently by checking candidate domains built from the company name (with/without legal suffix, trade words, .com/.net/.biz). A site is accepted only if the page names the company (all distinctive name words), mentions HVAC-type services, and shows the company's NY city, ZIP or registry street address. The phone is taken from that site (tel: links, else the contact page), WNY/CNY area codes only; nothing is guessed. A partial second pass for misses (stopped early, very low yield) tried wider guesses (hyphenated, initials, trade-word and city/NY suffixes, .com/.net/.co/.us/.org/.biz) plus /contact, /contact-us and /about pages, and for those guesses requires the company's ZIP or registry street address on the site. robots.txt is respected and requests are rate-limited (~2/sec). Search engines were not used (their robots.txt disallows automated search queries, or they were unreachable). No Google Maps/Places content is used (only stored Place IDs).

Privacy and legal notes

Source data is the public NY corporate registry; records describe business entities.
Business addresses only. Street addresses come only from the NY DOS registry and are published only when filed under the company's own name (principal executive office or DOS process address; registry_company_filed, or the original basis when the address has a commercial marker such as suite/unit/PO box/plaza). Withheld (blank, reason in address_basis): any address filed under a person's name (registered agent, process recipient, officer, location addressee), agent/law-firm addresses, "c/o" / "attn" lines, and addresses that look residential (apartment, court, lane, drive, circle, terrace, place, way, trail and similar street types). Owner names are only the officer name the corporation filed publicly with DOS.
CAN-SPAM applies to any commercial email sent using this data (accurate headers, clear identification, physical postal address, working opt-out honored within 10 business days). Phone outreach is subject to the TCPA and Do-Not-Call rules. Buyers are responsible for compliant use.
Data is provided as-is; registry and listing data can be out of date. Verify before relying on a record.

License

Commercial license (see LICENSE): internal business use by the licensee only; no resale, sublicensing or redistribution of the data. Registry source attribution: NY Department of State / data.ny.gov.

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