Sustainability Focus Established in 1991 with a stated commitment to design quality, technical expertise, and sustainability, MCALLISTER ARCHITECTS PC emphasizes long‑term client relationships and repeat business, indicating a stable base for sustainability consulting and green building services.

Regional Reach Operating in Virginia, Maryland and Washington, DC, with a footprint in Alexandria, the firm offers opportunities for cross‑jurisdictional projects and permitting support that can be upsold with expanded geographic service in the D.C. metro area.

Tech Capabilities Providing 2D permit drawings and 3D computer models signals capability to deliver BIM‑level visualization and modern design workflows, suggesting potential for upgrader services, BIM implementation, and digital twin integrations for clients.

Revenue Range Reported annual revenue between one and ten million dollars and a small team size (2–10 employees) implies opportunities to offer scalable, high‑value design services, project management, and strategic partnerships to augment capacity without significant overhead.

Client Concentration Many projects come from repeat clients, indicating high client satisfaction and potential for referral programs, bundled maintenance or retrofit services, and ongoing architectural support contracts to maximize lifetime value.