ACG vs Permasteelisa
Permasteelisa is one of the world's best-known facade engineers — an Italian-headquartered group that designs and installs bespoke unitized curtain wall on landmark towers across the globe. ACG is an owner-led, woman-owned Florida Division 08 glazing subcontractor founded in 2021. Different scale, different fit — they serve very different jobs. Here is the side-by-side.
ACG vs Permasteelisa: the facts.
ACG figures are drawn from American Commercial Glass company records (FL CGC #1531993). Permasteelisa figures are drawn from public company sources — permasteelisagroup.com (global presence, North America/Benson) and the Permasteelisa entry on Wikipedia. Where a Permasteelisa value is not publicly disclosed, the cell is marked "—" rather than estimated.
Which one fits your project?
When ACG is the fit
- Your project is in Florida and needs a sub who installs HVHZ Miami-Dade NOA and Florida Product Approval glazing as routine work, not a one-off.
- You want owner-level accountability on a regional schedule — Connor or Rielly is reachable directly, with no global program layers between you and a decision.
- Your scope is commercial, multifamily, or institutional in ACG's mid-rise sweet spot, where a focused local sub moves faster than a global facade engineer.
- You need a Woman-owned · Rielly Walsh, CEO and 51% majority owner, Procore-native sub with 48-hour bids on documented scopes.
When Permasteelisa is the fit
- Your project is a signature high-rise tower or museum-grade building requiring custom-engineered unitized facades with global R&D behind them.
- You need a single firm to design, engineer, manufacture, and install a complex bespoke envelope at international scale.
- Your program spans multiple countries and you want one facade specialist with a worldwide network of plants and engineering centers.
Both companies build good buildings. They are built for different jobs.
For the record.
Owner-led. Florida-built.
American Commercial Glass, Inc. is a Florida-licensed Division 08 commercial glazing subcontractor founded in 2021 and headquartered in West Palm Beach, with offices in Naples and Tampa and a Nashville office opening Q3 2026. ACG is owner-led by President Connor Walsh and CEO Rielly Walsh, and is Woman-owned · Rielly Walsh, CEO and 51% majority owner.
Global bespoke facades.
Permasteelisa S.p.A. is an Italian company in engineering, project management, manufacturing, and installation of architectural envelopes and interior systems. Founded in 1973 as Infissi Serramenti Alluminio (ISA) and headquartered in Vittorio Veneto in the Province of Treviso, the group reports around 3,900 employees and a network of about 40 companies across roughly 30 countries, with curtain wall as its main area of activity. Permasteelisa's North America operations (Benson) maintain bases in California, Washington, Oregon, Minnesota, Florida, and Connecticut.
Bidding in ACG's markets? Send the plans.
If the work is in Florida and in ACG's size range, an owner-reviewed proposal or budget direction comes back in 48 hours.