Opcmia
Opcmia is a non-profit labor union founded in 1864 that represents plasterers and cement masons across the North American construction industry, providing collective bargaining, apprenticeship training, and member services to trade workers.
- Company typePrivate
- Founded1864
- HeadquartersBeltsville, United States
- Headcount101–250
- GTM typeB2B and B2C
- OfferingServices
What Opcmia does
Opcmia (Operative Plasterers and Cement Masons International Association) is a non-profit labor union founded in 1864 that represents plasterers and cement masons across the North American construction industry. Headquartered in Beltsville, Maryland, the organization operates with a workforce of 101-250 staff and functions as a collective bargaining agent for its trade members rather than a commercial enterprise.
The union's core activity centers on trade representation: negotiating collective bargaining agreements, maintaining jurisdictional work assignments, administering apprenticeship and journeyman training programs, and providing member services to certified cement masons and plasterers. Its operational scope spans the United States and Canada through affiliated local unions. The primary stakeholders are individual trade workers and signatory contractors who rely on the union for skilled labor referrals and labor relations stability.
As a 501-style non-profit trade association, Opcmia's revenue mechanics are driven by member dues, per-capita assessments from affiliated locals, and training program fees rather than product or service sales. No proprietary technology platform, AI capabilities, or distinct product lines were disclosed in the available source material; the opcmia.org website rendered only a CAPTCHA/verification page during data collection, limiting visibility into specific programs, financial disclosures, or recent operational initiatives.
Opcmia firmographics
Firmographics- Name
- Opcmia
- Website
- https://opcmia.org
- Company type
- Private
- Founded year
- 1864
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Opcmia is a non-profit labor union founded in 1864 that represents plasterers and cement masons across the North American construction industry, providing collective bargaining, apprenticeship training, and member services to trade workers.
- Ownership category
- akta.pro rank
Opcmia industry classification
Industry- Product category
- Labor Union Services
- NAICS
- Professional Organizations (81392), Employment Placement Agencies (561311)
- SIC
- Services-Employment Agencies (7361)
- akta.pro primary industry
- Public Works & Municipal Services Labor Staffing (BPACAEAM)
- akta.pro secondary industries
- Construction & Trades Licensure (Contractor, Electrician, Plumber, HVAC CE) (EDAAALAH), Concrete Masonry Units (CMU) & Segmental Concrete Products (IMADAAAC)
Keywords
Where Opcmia is headquartered
LocationHeadquarters
- HQ city
- Beltsville
- HQ country
- United States
- HQ region
- North America
Markets served
Opcmia business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Opcmia product offering
Product offeringCore offering
OPCMIA is a labor union that represents plasterers and cement masons in the North American construction industry. The organization provides collective bargaining representation, worker advocacy, training, and member services to construction trade workers specializing in plastering and cement masonry. Headquartered in Beltsville, Maryland, OPCMIA has served these specialized trades since 1864.
Differentiator
Problem solved
Functional benefit
Products and services
- Plasterers and Cement Masons Union Representation
Companies that use Opcmia
Customer profileIdeal customer profiles2 records
Opcmia technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Opcmia partnerships and signals
Strategic signalExpansion highlights1 record
Opcmia competitors and assessment
Company assessmentDirect peers
- United Association of Plumbers, Pipefitters and Service Techs (UA): Union for plumbers, pipefitters, and HVAC service workers. Comparable to OPCMIA as a skilled-trades construction union running extensive apprenticeship/JATC programs across overlapping jurisdictions.
- International Brotherhood of Electrical Workers (IBEW): Largest electrical workers' union in North America. Comparable to OPCMIA as a premier construction trades union with extensive apprenticeship/JATC training and collective bargaining.
- International Union of Painters and Allied Trades (IUPAT): A U.S./Canadian labor union representing finishing-trade craftspeople in construction. Directly comparable to OPCMIA as a building trades union operating apprenticeship programs and collective bargaining in overlapping construction segments.
- Laborers' International Union of North America (LIUNA): Union representing construction laborers across North America. Comparable to OPCMIA as a peer construction trade union with overlapping job sites and overlapping apprenticeship/JATC training programs.
- United Brotherhood of Carpenters (UBC): Large North American union for carpenters and related trades in construction. Directly comparable to OPCMIA as a major building trades union operating apprenticeship training, collective bargaining, and jurisdiction over residential/commercial work.
- International Union of Bricklayers and Allied Craftworkers (BAC): North American union representing bricklayers, tile setters, and stone masons. Comparable to OPCMIA as a construction craft union whose members perform masonry-adjacent work and share apprenticeship/JATC infrastructure.
- International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART): North American union covering sheet metal workers and related transportation crafts. Directly comparable as a building/construction trades union with apprenticeship and training infrastructure.
- International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers: Union representing ironworkers in construction. Comparable to OPCMIA as a building trades union with apprenticeship programs that often intersect on the same job sites.
- International Union of Operating Engineers (IUOE): Union for heavy-equipment operators in construction. Comparable to OPCMIA as a major North American construction trade union with parallel apprenticeship and collective bargaining operations.
Broad incumbents
- Associated Builders and Contractors (ABC): National construction industry trade association representing open-shop (non-union) contractors. Comparable to OPCMIA as a major North American construction industry institution engaged in workforce training, apprenticeship, and labor policy — albeit on the opposite side of the union/non-union divide.
Market position
Strengths3 records
Weaknesses4 records
Competitive moat3 records
Key risks4 records
Key highlights5 records
Customer concentration
Opcmia social profiles
Digital presenceOpcmia financial estimates
Financial estimateRevenue estimate
Valuation estimate
Opcmia leadership team
Management profileNumber of profiles
Opcmia funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Opcmia M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Opcmia
What does Opcmia do?
OPCMIA is a labor union that represents plasterers and cement masons in the North American construction industry. The organization provides collective bargaining representation, worker advocacy, training, and member services to construction trade workers specializing in plastering and cement masonry. Headquartered in Beltsville, Maryland, OPCMIA has served these specialized trades since 1864.
When was Opcmia founded?
Opcmia was founded in 1864. It employs 101 to 250 people.
Where is Opcmia based?
Opcmia is headquartered in Beltsville, United States, in the North America region.
Who are Opcmia's main competitors?
Direct peers on record are United Association of Plumbers, Pipefitters and Service Techs (UA), International Brotherhood of Electrical Workers (IBEW), International Union of Painters and Allied Trades (IUPAT), Laborers' International Union of North America (LIUNA), United Brotherhood of Carpenters (UBC), International Union of Bricklayers and Allied Craftworkers (BAC), International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART), International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers and International Union of Operating Engineers (IUOE). Associated Builders and Contractors (ABC) is listed as a broad incumbent.
Does Opcmia have an API?
No public API is recorded for Opcmia.
What industry is Opcmia in?
Opcmia's product category is Labor Union Services. Its primary akta.pro industry code is BPACAEAM, Public Works & Municipal Services Labor Staffing, with a secondary code of EDAAALAH, Construction & Trades Licensure (Contractor, Electrician, Plumber, HVAC CE). Its NAICS code is 81392 and its SIC code is 7361.