BMC Stock Holdings website screenshot

BMC Stock Holdings

BMC Stock Holdings, Inc. was one of the largest professional building materials distributors in the United States, serving homebuilders, remodelers, and contractors with lumber, structural components, millwork, doors, windows, and installed services. The company was formed in December 2015 through the merger of Stock Building Supply and Building Materials Holding Corporation (BMHC) and traded on NASDAQ under the ticker BMCH, headquartered in Raleigh, North Carolina. On January 1, 2021, BMC Stock Holdings completed an all-stock "merger of equals" with Builders FirstSource (NYSE: BLDR), creating the nation's largest supplier of structural building products to the professional homebuilding market. The combined company retained the Builders FirstSource name, BLDR ticker, and Irving, Texas headquarters. The merger had an enterprise value of approximately $2.5 billion and produced a company with more than $11 billion in annual sales, approximately 26,000 employees, and roughly 550 distribution and manufacturing locations across more than 40 U.S. states. BMC Stock Holdings no longer exists as an independent entity. The legacy buildwithbmc.com domain redirects to bldr.com, and BMC product lines and branches have been absorbed into the Builders FirstSource network. This profile is retained as a historical Fortune 1000 record (BMC ranked #677 prior to the merger) and as a redirect to the successor profile at api-evangelist/builders-firstsource. BMC operated as a commodity-and-services distributor and did not publish public developer APIs, OpenAPI specifications, SDKs, or a developer portal. No API surface is documented for this provider.

BMC Stock Holdings is profiled on the APIs.io network. Tagged areas include Building Materials, Distribution, Construction, Lumber, and Homebuilding.

🌐 Visit website 📡 Source on GitHub
0.0/100 minimal Agent 0/100 human only Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
0 APIs
Building MaterialsDistributionConstructionLumberHomebuildingDefunctMerger And AcquisitionFortune 1000

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 0.0/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.0 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Contract Governance 0.0 / 10
Discoverability 0.0 / 9
Regulatory Posture 0.9 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/bmc-stock-holdings: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Bmc Stock Holdings Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 2

The organization behind the API

Website
Website
 LegacyHomepage
LegacyHomepage

Other 2

Properties that don't map to a standard resource type

SuccessorProfile
SuccessorProfile
 Wikipedia
Wikipedia

Source (apis.yml)

apis.yml Raw ↑ 
name: BMC Stock Holdings
description: 'BMC Stock Holdings, Inc. was one of the largest professional building materials

  distributors in the United States, serving homebuilders, remodelers, and

  contractors with lumber, structural components, millwork, doors, windows,

  and installed services. The company was formed in December 2015 through the

  merger of Stock Building Supply and Building Materials Holding Corporation

  (BMHC) and traded on NASDAQ under the ticker BMCH, headquartered in Raleigh,

  North Carolina.


  On January 1, 2021, BMC Stock Holdings completed an all-stock "merger of

  equals" with Builders FirstSource (NYSE: BLDR), creating the nation''s largest

  supplier of structural building products to the professional homebuilding

  market. The combined company retained the Builders FirstSource name, BLDR

  ticker, and Irving, Texas headquarters. The merger had an enterprise value of

  approximately $2.5 billion and produced a company with more than $11 billion

  in annual sales, approximately 26,000 employees, and roughly 550 distribution

  and manufacturing locations across more than 40 U.S. states.


  BMC Stock Holdings no longer exists as an independent entity. The legacy

  buildwithbmc.com domain redirects to bldr.com, and BMC product lines and

  branches have been absorbed into the Builders FirstSource network. This

  profile is retained as a historical Fortune 1000 record (BMC ranked #677

  prior to the merger) and as a redirect to the successor profile at

  api-evangelist/builders-firstsource.


  BMC operated as a commodity-and-services distributor and did not publish

  public developer APIs, OpenAPI specifications, SDKs, or a developer portal.

  No API surface is documented for this provider.'
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-productions2.s3.amazonaws.com/api-evangelist-site/api-evangelist-network/bmc-stock-holdings.png
url: https://github.com/api-evangelist/bmc-stock-holdings
created: 2015-12-01
modified: 2021-01-01
specificationVersion: '0.23'
tags:
- Building Materials
- Distribution
- Construction
- Lumber
- Homebuilding
- Defunct
- Merger And Acquisition
- Fortune 1000
apis: []
common:
- type: DomainSecurity
  url: security/bmc-stock-holdings-domain-security.yml
- type: Website
  url: https://www.bldr.com
- type: LegacyHomepage
  url: https://www.buildwithbmc.com
- type: SuccessorProfile
  url: https://github.com/api-evangelist/builders-firstsource
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/Builders_FirstSource
maintainers:
- FN: Kin Lane
  url: https://apievangelist.com
  email: info@apievangelist.com
x-status: defunct
x-status-reason: Merged into Builders FirstSource (NYSE BLDR) effective 2021-01-01
x-former-ticker: BMCH
x-successor:
  name: Builders FirstSource
  ticker: BLDR
  exchange: NYSE
  repo: builders-firstsource
  merger-close: 2021-01-01
  merger-enterprise-value-usd: 2500000000
  combined-annual-revenue-usd: 11000000000
  combined-employees: 26000
  combined-locations: 550
  combined-states: 40
x-former-headquarters: Raleigh, North Carolina, USA
x-former-fortune-rank: 677

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