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David Greaney

David Greaney

Chief Executive Officer, Synergy

MAMember since October 2024

$616M

Volume

$473M

Sold

$143M

Financed

2

Closed

1M sf

Area

About

David Greaney is the Founder and Chief Executive Officer of Synergy, a Boston-based real estate investment and services company. Synergy operates 40 commercial assets in the greater Boston area totaling over 6,000,000 square feet. Over 500 companies, retailers, and organizations occupy space in the Synergy managed portfolio. Synergy is recognized a...

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Highlight deals

SOLD

David Greaney Of Synergy Acquires 99 High Street Office Tower In Boston For $227M

$310/SF

CRE
David Greaney
Apr 24, 2025
SOLD

David Greaney Of Synergy & Clayton DeGiacinto Of Axonic Capital Acquire Office Tower For $116M

CRE
Clayton DeGiacinto
David Greaney
Jul 16, 2026
FINANCED

David Greaney Of Synergy Secures $92.1 Million Refinance For 101 Arch Street Office Tower

$224/SF

CRE
David Greaney
Sep 1, 2026
SOLD

David Greaney's Synergy Acquires Mixed-Use Building In Boston For $62M

$623/SF

CRE
Mark J. Parrell
David Greaney
Jan 22, 2024
SOLD

Synergy Investments Acquires One Liberty Square Office Building In Boston For $45M

CRE
David Greaney
Sep 8, 2023

Focus

Office
Mixed-use
Sale
Loan
Lease

Markets

Massachusetts

On the web

LinkedIn

FAQs

David Greaney has closed 5 sales, 1 loan, 2 leases.

David Greaney's most recent deal was on September 01, 2026.

David Greaney's largest deals include a sale of $227,000,000.00 for 99 High Street, and a loan of $92,100,000.00 for 101 Arch Street, and a lease covering 9,396 sqft for 101 Arch Street.

Member since October 2024

Deals