44 Worcester Business Journal • Book Of Lists 2015 www.wbjournal.com
Top clean energy companies
Ranked by number of local employees
Name Local employees Description
Head of company/
Title Year founded
1
Conservation Services Group
50 Washington St., Westborough 01581
508-836-9500 • www.csgrp.com
148 Energy services
Stephen L. Cowell,
Chairman & CEO
1984
2
NEC Energy Solutions
1
155 Flanders Rd., Westborough 01581
508-497-7319 • www.neces.com
140
2
Developer and manufacturer of advanced energy storage systems for electric grid,
commercial, and industrial markets
Bud Collins,
CEO
2001
3
Ameresco Inc.
111 Speen St., Ste. 401, Framingham 02050
866-263-7372 • www.ameresco.com
117 Provider of energy services
George P. Sakellaris,
President & CEO
2000
4
AMSC
3
64 Jackson Rd., Devens 01434
978-842-3000 • www.amsc.com
100
4
Provider serving wind and power grid industry
Daniel P. McGahn,
President & CEO
1987
5
NORESCO
1 Research Dr., Ste. 400C, Westborough 01581
508-614-1000 • www.noresco.com
85 Energy services and consulting
Neil Petchers,
President & CEO
1984
6
EnerNOC
5
100 Front St., 20th Floor, Worcester 01608
508-459-8100 • www.enernoc.com
63
6
Energy technology and services firm for commercial, industrial, institutional,
government and utility customers
David Brewster,
President & co-founder
2001
7
Protonex Technology Corp.
153 Northboro Rd., Southborough 01772
508-490-9960 • www.protonex.com
52
Supplier of alternative energy and power management products for military and
commercial needs
Paul Osenar,
Founder, President & CEO
Christopher R. Schuster,
CFO & Treasurer
2000
8
Boston-Power Inc.
2200 West Park Dr., Westborough 01581
508-366-0885 • www.boston-power.com
50
Manufacturer of lithium-ion battery cells, module and block systems engineered for
EV, ESS and industrial applications
Rick Chamberlain,
CTO
2005
8
nrg.HOME Solar
7
89F Washington Ave., Natick 01760
508-545-0989 • www.nrghomesolar.com
50
8
Home solar integration, smart home products
Kelcy Pegler Jr.,
President
2011
10
SolarFlair Energy Inc.
190 Pleasant St., Ashland 01721
508-293-4293 • www.solarflair.com
46 Solar power systems
Matthew Arner,
President
2007
11
Solect Energy Development LLC
89 Hayden Rowe St., Hopkinton 01748
508-598-3511 • www.solect.com
35
Commercial solar development - turnkey design, engineering, installation and
management
Ken Driscoll
James Dumas
Craig Huntley,
Co-founders
2009
12
New England Clean Energy
43 Broad St., Ste. B407, Hudson 01749
978-567-6527 • www.newenglandcleanenergy.com
31
Design, engineering and installation of solar electric systems for homes and
businesses
Mark Durrenberger,
President
2006
13
AltE
330 Codman Hill Rd., Boxborough 01719
877-878-4060 • www.altEstore.com
19
Distributor of renewable energy products to Northeast solar power system installers
and ecommerce sales to do-it-yourselfers for off-grid solar energy systems across the
globe
Sascha Deri,
CEO & Co-founder
Nick Albright,
CTO & Co-founder
1999
14
Solar Design Associates Inc.
P.O. Box 242, Harvard 01451
978-456-6855 • www.solardesign.com
13 Solar design and installation
Steven J. Strong,
President
1974
15
Absolute Green Energy
92 Gardner St., Worcester 01610
508-459-5410 • www.absolutegreenenergy.com
6
9
Solar photovoltaic systems
Michael C. Ortolano,
President
2008
16
Sirius Integrator
146 Riverbend Dr., Groton 01450
855-747-4874 • www.siriusintegrator.com
2
Reseller of fuel cell remote power solutions to physical and homeland security, law
enforcement, oil and gas, seismic and weather, marine, wind, railway, traffic
management, and industrial communication corporate and government customers
John Merlino,
CEO
2009
Source: Each company via survey.
Note: AMSC, formerly American Superconductor, did not disclose local employee figure. Based on historical data and workforce reduction estimates, local employee estimate is 75-90. AMSC reports a global workforce of 269 (2014) and 318
(2015) and plans to restructure by consolidating its Middleton, WI unit to Devens and further reducing global employee count.
1
Unit of A123 Systems
2
Figure reported in Sept. 2014
3
Formerly American Superconductor Corp.
4
Estimate from 2014 list
5
Acquired World Energy Solutions in Jan. 2015
6
Number of employees for World Energy Solutions reported in Sept., 2014.
7
Formerly Roof Diagnostics
8
Figure reported in Sept. 2014.
9
Firm did not respond to survey; data are from 2013.
- Compiled by: Roger Magnus, rmagnus@nebusinessmedia.com
