Investor Profile - MA
Ronald Martignetti
Ronald Martignetti is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 22 properties held through 13 holding companies. Recent mortgage relationships include Rockland Trust and Winchester Savings Bank.
Ronald's Activity
As of June 2026, public records show approximately $64.6M in recorded mortgage exposure linked to this investor across at least 15 mortgage filings and 22 properties held through 13 holding companies. Activity appears concentrated in industrial and commercial assets recorded between 2015 and 2026.
Associated People
Primary Geography
Boston-Worcester, MA-NH
ZIP codes: 01801, 02127, 01887, 01890, and 02155
Most activity in WOBURN, WILMINGTON, WINCHESTER, MEDFORD, and SOUTH BOSTON.
Property Type Breakdown
Associated Entities (13)
MA · 0 properties · 3 mortgages
MA · 1 property · 2 mortgages
+11 more entities not shown
Mortgages (15)
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 01/16/2026 | $2.4M | Open | Winchester Savings Bank | 29 FOREST STREET LLC | 29 FOREST ST, MEDFORD, MA 02155 |
| 11/04/2022 | $5.4M | Open | Winchester Savings Bank | 90 RESEARCH DEVELOPMENT LLC | 90 RESEARCH DR, WILMINGTON, MA 01887 |
+13 more not shown
Owned Properties (22)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 5 WOOD LN, WINCHESTER, MA 01890 | 5 WOOD LANE LLC | Owns - 4 mos | $2.0M |
| 90 RESEARCH DR, WILMINGTON, MA 01887 | 90 RESEARCH DEVELOPMENT LLC | Owns - 3.6 yrs | $0 |
+20 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in industrial, commercial, and residential properties across Boston-Worcester, MA-NH.
What companies is Ronald Martignetti associated with?
Ronald Martignetti is associated with 13 entities based on extracted signatures from public records. Key entities include 304 CAMBRIDGE LLC, 10 MICRO DRIVE LLC, MBRT 100 RESEARCH LLC, 29 FOREST STREET LLC, and 317 NB DEVELOPMENT LLC.
How many properties are associated with this investor?
At least 22 properties are associated with Ronald Martignetti and the entities they control, based on signatures extracted from recorded documents connecting Ronald Martignetti to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Rockland Trust and Winchester Savings Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2026, with the most recent mortgage recorded in 2026.
How is associated activity determined?
Elementix uses AI to extract signatures from recorded documents. These signatures are used to determine the relationships between people and entities. This is a novel approach that goes beyond looking at corporate filings and skip-tracing.
The information displayed on this page is compiled from recorded real estate documents, business filings, and other lawfully available sources. Elementix summarizes and analyzes public record activity related to investment real estate and associated business entities. Any contact indicators shown (such as email domain references or partial phone digits) are provided solely as unverified signals and may be incomplete or outdated.
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