Founded in 2017, Porta & Co. is a commercial real estate services firm based in Portland, Maine offering a broad range of professional services including brokerage, private equity sourcing and institutional financing,as well as comprehensive asset management.
Our Team
Our team has experience in every type of commercial real estate transaction, from ground-up development, to tenant and landlord representation, to managing capital events for investment assets. We understand that commercial real estate assets are dynamic and multifaceted, and that thoughtful organization and planning are essential in order to meet the strategic priorities of the investor. Through our collective experience and extensive local and national networks, we provide the market data and underwriting services needed to achieve these outcomes.
Peter Gwilym
Broker
Notable Transactions
- 145 Commercial Street, Portland (Evie Cianchette Block): 28,498± SF multi-tenanted Office Condo which sold 50% vacant in 2025. Peter helped facilitate the condo conversion which had previously been a hurdle to sale and organized a deal for a new tenant to take the vacant space just months later.
- 210 Middle Street, Portland: Peter represented the Tenant, PopUp Bagels in their search process for their first Maine location. They extensively looked throughout the Greater Portland Market and settled upon this downtown location. Targeted opening the end of 2025.
- 3 Canal Plaza, Portland: Peter assisted Fidelity in their expansion at the Canal Plaza location, with a blend and extend deal within the same property for their office expansion.
- 174 Cash Street, South Portland: 34,421± SF industrial building sold to one of the Anchor Tenant’s. The building had been previously self managed and had quite a few shared elements which were not common for an industrial building of this size. Peter helped the seller organize the building including the leases and income/expense info to help facilitate the sale.
We look forward to working with you.