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Mark J. Duclos
President
SENTRY COMMERCIAL
SIORSIOR Member since 2003
Brokerage Management, Consulting, Corporate Services, Distribution & Logistics, Investments, Landlord, Sale/Leasing, Tenant Representation160 Trumbull St, Hartford, Connecticut 06103-2457
2
Active Committees
46
Past Committees
143
Lifetime Events Attended
2
Events Attended This Year
43
Transactions
About
Mark Duclos, SIOR, is co-founder and President of Sentry Commercial, a Southern New England real estate services firm, based in Hartford CT. He has more than 35 years of experience as an industrial specialist. He has held the SIOR designation for more than 17 years and is a past SIOR Global President.
He started his commercial real estate career in 1986 with developer and owner, Griffin Industrial Realty, and began his brokerage career with The Farley Company, representing industrial companies for their real estate needs. In addition to holding the prestigious SIOR designation, he also holds the Counselors of Real Estate (CRE) designation.
Mark is a licensed broker in Connecticut and Massachusetts. He currently sits on the Hartford Board of the Real Estate Finance Association (REFA) and is a member of the Board of Trustees for American International College.
Active Committees (2)
- Global Business Growth Group
- SPB - Distribution and Logistics
Past Committees (46)
- Past Presidents Committee
- SIOR Foundation Executive Committee
- SIOR Foundation Grants & Scholarship
- SIOR Foundation Board of Trustees
- SIOR Foundation Executive Committee
- SIOR Foundation Grants & Scholarship
- Past Presidents Committee
- SIOR Foundation Executive Committee
- SIOR Foundation Grants & Scholarship
- Past Presidents Committee
- SIOR Foundation Board of Trustees
- Nominating
- Past Presidents Committee
- Governance
- Nominating
- Board of Directors
- Governance
- Board of Directors
- Governance
- Board of Directors
- Governance
- Board of Directors
- Member Coalition Council
- Board of Directors
- Governance
- Board of Directors
- Nominating
- Conference Committee
- Planning & Program Development
- Board of Directors
- SIOR-Connecticut Chapter
- Chapter Leadership Council
- Member Segmentation Work Group
- SIOR-Connecticut Chapter
- Chapter Leadership Council
- SIOR-Connecticut Chapter
- Membership Council
- Member Retention Committee
- SIOR-Connecticut Chapter
- Member Retention Committee
- Benefits & Services
- Chapter Leadership Council
- SIOR-Connecticut Chapter
- Chapter Leadership Council
- SPB - Brokerage Management
- Chapter Leadership Council
Events Attended This Year (2)
- SIOR'S Fall 2026 Event
- 2026 Spring Event
Lifetime Events Attended (143)
- SIOR'S Fall 2026 Event
- 2026 Spring Event
- 2025 Fall Event
- 2025 Spring Event
- 2024 Fall Event
- 2024 Spring Event
- Fall 2023 Event
- 2023 Spring Event
- 2022 CREate 360
- 2021 CREate 360
- Southeast Regional Conference
- Business Meeting & Networring
- Industrial & Office Property Summit
- Chapter Meeting 09/15/2021
- Bottleworks Tour and Pannel Discussion
- Annual Golf Outing 2021
- Chapter Meeting 06/23/2021
- How to Look Professional Online | Happy Hour
- Summer Golf Outing
- Recruitment Event / Top Golf
- Young Voices in Real Estate
- Spring Conference 2021
- 2021 TransACT 360
- COVID Series Part 1: Industrial | A Star Asset Class Continues to Shine Bright
- Quail Hunt
- Navy SEALS & Leadership Webinar
- Webinar: Technology Trends for the Industrial Warehouse
- Member/Sponsor Networking
- 2021 Quarter One Broker Bootcamp 02/22/2021
- Tenant Rep Member Group Networking Roundtables (December 8, 2020) 02/09/2021
- Webinar: Office Leasing & Sales in the Face of the Pandemic
- A Post-COVID View of the Work Environment
- Virtual Holiday Party
- Christmas Wine Tasting
- Are We Moving to a Virtual Real Estate Sector?
- Taking You From ""Working the Room"" to ""Working the Zoom""
- Happy Hour
- 2020 Winter Broker Bootcamp 11/09/2020
- 2020 CREate 360 Virtual
- Webinar with RE speaker Lipsey
- Chapter Fall Meeting
- Membership Breakfast
- Happy Hour 08/20/2020
- Chapter Zoom 08/12/2020
- Chapter Zoom 08/05/2020
- Technologies That Keep You and Your Clients Safe at Work
- Industrial Real Estate with Tim Lescalleet
- Annual Meeting 07/15/2020
- Happy Hour 07/09/2020
- Repositioning for Reopening
- Construction and Design Panel Discussion
- 2020 Summer Broker Bootcamp 06/15/2020
- Technology Tools To Better Your Business (June 2020)
- A Conversation with Ian Grusd & Kevin Spellacy of Ten-X
- Industrial Networking Roundtables (June 2020)
- Monthly Lunch 06/10/2020
- Sponsor and Member Deal-Making
- The Future of Office with Antony Slumbers
- Armchair Discussion with Adam Winstanley
- ""Around the Horn"" Market Updates
- Virtual TransACT 360: International Roundtable Discussion
- Virtual TransACT 360: Industrial Roundtable Discussions
- Virtual TransACT 360: Technology Webinar
- Virtual TransACT 360: Tenant Rep Roundtables
- Due Diligence in the Time of COVID19
- Happy Hour 04/30/2020
- Cocktails and Conversations Virtual Meeting
- 2022 TransACT 360
- Virtual TransACT 360: IBG - Running Teams & Working With Clients Virtually
- Awards Dinner
- UConn Basketball Night Out
- Spring Conference 02/20/2020
- Metro Market Forecast 2020
- AGM 2020
- Winter Meeting and Dinner
- Holiday Gathering 12/10/2019
- Holiday Lunch 2019
- Broker of the Year Awards & Presidents Dinner
- 2019 Fall World Conference
- Central Florida Happy Hour
- Annual Golf Tournament 07/22/2019
- Webinar: Analysis to Opportunity: The Role of Data in CRE
- Summer Meeting 2019
- SIOR & Town of Berlin Golf Outing
- Developer Breakfast Panel
- SIOR Service Day
- SIOR Service Day 05/08/2019
- 2019 Spring World Conference
- Spring Conference 03/14/2019
- Winter Meeting 2019
- IOREBA
- Chapter Happy Hour (Post-Film)
- Winter Meeting 12/06/2018
- SIOR Northeast Regional
- Construction Panel 10/25/2018
- 2018 Fall World Conference
- Scholarship Night 2018
- Fall Meeting 09/20/2018
- 2nd European International Conference
- Summer Meeting 2018
- 2018 Spring World Conference
- Winter Meeting 02/22/2018
- Finance & Lending Panel
- Winter Meeting 2017
- 2017 Fall World Conference
- Member Meeting 09/28/2017
- Summer Meeting 06/14/2017
- 2017 Spring World Conference
- Member Meeting 03/01/2017
- 2016 Fall World Conference
- 2016 Leadership Conference
- World European Conference
- 2016 Spring World Conference
- 2015 Fall World Conference
- 2015 Leadership Conference
- 2015 Spring World Conference
- Tri-State Conference
- 2014 Leadership Conference
- 2014 Fall World Conference
- 2014 Spring World Conference
- 2013 Fall World Conference
- 2013 Spring World Conference
- 2012 Fall World Conference
- 2012 Spring World Conference
- 2011 Fall World Conference
- 2011 Spring World Conference
- 2010 Fall World Conference
- 2010 Spring World Conference
- Leadership Conference 2009
- FWC 2009
- 2009 Spring World Conference
- 2008 Fall World Conference - Minneapolis, MN
- 2008 Spring Convention
- 2007 FPC
- 2007 Spring Convention
- 2006 Fall Professional Conference
- 2006 Spring Convention
- 2005 Fall Professional Conference
- 2005 Spring Convention
- 2004 Fall Professional Conference
- 2004 Spring Convention
- 2003 Fall Professional Conference
- 2003 Spring Designation Courses
Transactions (43)
INDUSTRIAL SALE
$6,600,000
56,640 Sq. Ft.
January 6, 2022 Bloomfield, CT
INDUSTRIAL LEASE
135,410 Sq. Ft.
November 20, 2018 WIndsor, CT
INDUSTRIAL LEASE
Confidential
135,410 Sq. Ft.
November 20, 2018 Windsor, CT
INDUSTRIAL LEASE
8,846 Sq. Ft.
October 5, 2018 East Hartford, CT
INDUSTRIAL LEASE
21,200 Sq. Ft.
July 25, 2018 East Granby, CT
INDUSTRIAL LEASE
12,240 Sq. Ft.
July 24, 2018 East Granby, CT
OFFICE SALE
$230,000
6,580 Sq. Ft.
December 15, 2017 East Hartford, CT
INDUSTRIAL SALE
$475,000
8,400 Sq. Ft. / 1 Acres
November 24, 2017 South Windsor, CT
OFFICE LEASE
$337,500
2,250 Sq. Ft.
November 21, 2017 Simsbury, CT
INDUSTRIAL SALE
$650,000
71,655 Sq. Ft. / 4 Acres
September 12, 2017 East Hartford, CT
INDUSTRIAL SALE
$3,879,680
65,691 Sq. Ft. / 8 Acres
September 6, 2017 East Granby, CT
INDUSTRIAL SALE
$1,280,000
52,000 Sq. Ft. / 6 Acres
August 31, 2017 Vernon, CT
INDUSTRIAL LEASE
$120,416
8,846 Sq. Ft. / 6 Acres
August 7, 2017 East Hartford, CT
INDUSTRIAL LEASE
$405,000
30,000 Sq. Ft.
July 20, 2017 Manchester, CT
INDUSTRIAL LEASE
$185,955
9,900 Sq. Ft.
July 12, 2017 Manchester, CT
LAND SALE
$1,225,000
49 Acres
June 8, 2017 Bloomfield, CT
INDUSTRIAL SALE
$975,000
19,098 Sq. Ft. / 4 Acres
May 23, 2017 Bloomfield, CT
INDUSTRIAL SALE
$1,610,000
71,619 Sq. Ft. / 311 Acres
May 17, 2017 East Hartford, CT
INDUSTRIAL LEASE
Confidential
41,632 Sq. Ft. / 482 Acres
November 30, 2016 East Granby, CT
INDUSTRIAL LEASE
Confidential
14,600 Sq. Ft. / 2 Acres
September 28, 2016 New Britain, CT
INDUSTRIAL LEASE
$2,253,383
54,426 Sq. Ft. / 10 Acres
February 1, 2016 Waterbury, CT
OTHER SALE
$14,615,000
56,936 Sq. Ft. / 14 Acres
December 1, 2015 Rocky Hill, CT
INDUSTRIAL LEASE
$208,800
8,000 Sq. Ft. / 6 Acres
July 31, 2015 Vernon, CT
INDUSTRIAL LEASE
$258,750
17,250 Sq. Ft. / 8 Acres
July 17, 2015 East Granby, CT
INDUSTRIAL LEASE
Confidential
32,600 Sq. Ft. / 3 Acres
May 14, 2015 Rocky Hill, CT
OTHER SALE
$992,000
4,564 Sq. Ft. / 22 Acres
April 9, 2015 Guilford, CT
OFFICE LEASE
Confidential
12,127 Sq. Ft. / 10 Acres
January 30, 2015 Waterbury, CT
INDUSTRIAL LEASE
$154,224
48,960 Sq. Ft.
October 21, 2014 Agawam, MA
INDUSTRIAL LEASE
$1,724,178
40,200 Sq. Ft.
September 26, 2014 Newington, CT
OFFICE LEASE
Confidential
1,586 Sq. Ft.
April 2, 2014 Phoenix, AZ
INDUSTRIAL LEASE
Confidential
111,443 Sq. Ft. / 7 Acres
February 28, 2014 East Hartford, CT
INDUSTRIAL LEASE
Confidential
46,205 Sq. Ft. / 2 Acres
January 29, 2014 Springfield, MA
INDUSTRIAL SALE
$2,475,000
53,325 Sq. Ft.
December 18, 2013 East Hartfod, CT
INDUSTRIAL SALE
$2,050,000
125,400 Sq. Ft. / 8 Acres
December 10, 2013 East Longmeadow, MA
INDUSTRIAL LEASE
Confidential
32,663 Sq. Ft. / 11 Acres
August 16, 2013 Bloomfield, CT
INDUSTRIAL LEASE
$984,000
July 5, 2012 Rocky Hill, CT
INDUSTRIAL LEASE
$2,498,620
February 14, 2012 CT
Robert Gaucher, CCIM
Rocky Hill, CT
OTHER SALE
$350,000
December 23, 2011 South Winsor, CT
INDUSTRIAL LEASE
$422,194
November 16, 2011 Willingford, CT
INDUSTRIAL SALE
$1,150,000
February 3, 2011 Rocky Hill, CT
INDUSTRIAL SALE
$1,450,000
February 3, 2011 Rocky Hill, CT
OTHER SALE
$2,600,000
27,012 Sq. Ft.
February 3, 2011 Rocky Hill, CT
INDUSTRIAL LEASE
Confidential
90,000 Sq. Ft.
July 21, 2010 Waterbury, CT
