Chief Executive Officer
Chief Financial Officer
Chief Human Resource Officer
Chief Administrative Officer
Senior Vice President, Energy and Community Resources
Senior Vice President, Child & Family Services
Senior Vice President, Housing and Homeless Services
Vice President, Communications and External Affairs
Chief Executive Officer
Carl W. Howell is a dedicated and influential leader in the non-profit sector with decades of experience addressing the complex challenges of poverty, homelessness, and disparities across social determinants of health. As Chief Executive Officer of Community Teamwork, Inc. (CTI), one of New England’s most respected non-profits, Carl plays a key role in overseeing a broad range of impactful programs with a focus on Housing, Education, and Economic Opportunities. Under his leadership, CTI continues to thrive as a Community Action Agency, Regional Housing Agency, and Community Development Corporation (CDC), making it one of only two organizations in Massachusetts to hold all three designations.
Carl’s work has garnered national recognition, including an invitation from the White House to speak on Public Health disparities impacting BIPOC communities across the nation. His commitment to equity and inclusion is deeply woven into his leadership approach, ensuring that Diversity, Equity, Inclusion, and Belonging (DEIB) practices are prioritized both internally and externally within CTI’s operations.
In addition to his role at CTI, Carl has been a driving force behind several innovative initiatives. He has developed youth-focused housing programs, enhanced family homeless programming, and championed the integration of DEIB principles across all organizational practices. His efforts in advocating for equitable housing policies extend to the local, state, and federal levels, where he actively works to influence legislative changes that support vulnerable populations.
Carl’s leadership and advocacy extend beyond CTI through his service on multiple boards and advisory groups focused on housing and higher education, His visionary approach to addressing housing inequities and his dedication to community-centered solutions have made him a respected figure in both the non-profit and policy advocacy realms.
Chief Financial Officer
Nancy Van Alst joined Community Teamwork in 2018 as the Director of Finance and Accounting and was promoted to Chief Financial Officer in 2023. Prior to working in the non-profit sector, Nancy worked as a financial analyst at public and privately held companies in both high tech and manufacturing for fifteen years. In 2001, Nancy made a decision to apply her financial skills toward working for non-profit agencies serving her hometown community of Lowell. This decision led her to Alternative House, an agency providing comprehensive domestic violence services, where she served as the Finance Director for eight years. During this time, she worked to secure financing and develop permanent affordable housing for survivors of domestic violence, and later a new emergency domestic violence shelter for women and children. She went on to become the Chief Financial Officer of Lowell House, an addiction treatment services agency, where she led the implementation of an electronic health record, developed sober housing for women, and secured financing for a new outpatient and administration facility. Nancy holds a bachelor’s degree in Finance from Northeastern University and her MBA from Bentley University. She is also a graduate of the Institute for Non-Profit Management from Boston University.
Chief Program Officer
With over 15 years of leadership experience in the nonprofit sector, Kayombo brings a proven track record of driving strategic initiatives that enhance programmatic impact, operational efficiency, and community connections.
Prior to joining Community Teamwork, Inc., Kayombo served as the Chief Program Operations Officer at St. Mary’s Center for Women and Children in Boston, where he led and implemented initiatives that improved trauma-informed care and operational efficiency. His leadership extends to organizations like The Pathlight Group, Kennedy-Donovan Center, Bay Cove Human Services, and The Greater Waltham Arc, where he developed innovative programs, optimized service delivery, and built strategic partnerships that expanded outreach and engagement.
A passionate advocate for social justice, equity, and inclusion, Kayombo is dedicated to fostering recovery for vulnerable populations through trauma-informed systems and person-centered care. His expertise in change management, staff development, and community partnerships anchors his life-long mission of empowering underserved populations and low-income individuals and families to achieve stability and self-sufficiency.
Kayombo holds a Bachelor of Business Administration in Computer and Management Information Systems, as well as Certifications in Organizational Leadership from the University of Massachusetts, Amherst and Connected Strategy from the University of Pennsylvania.
Senior Vice President, Child & Family Services
Meghan Siembor has been with Community Teamwork since November of 2010 and is the Senior Vice President, Child & Family Services. She is responsible for all of CTI’s early learning and child care services including Center Based Care, Head Start, and Family Child Care and School Age programs.
Meghan has a Master’s Degree in Early Childhood Education from Lesley University, is a graduate of the Institute for Non-Profit Management and Leadership at the Boston University School of Management and the Head Start Management Fellowship Program at the UCLA Anderson School of Management.
Senior Vice President, Energy and Community Resources
Connie Martin is Community Teamwork’s Senior Vice President, Energy and Community Resources. She oversees a budget of $10 million of federal, state and private programming fund and implements a wide range of programs that serve nearly 14,000 people. Ms. Martin was educated in the Lowell Public Schools, graduated from St. Michael’s College in Winooski, Vermont, and completed her Master’s in Education Administration at the Graduate School of Education, University of Massachusetts at Lowell. During her career in non-profit management, she has held positions in several different sectors including arts and culture, business advocacy, workforce development and childcare programming. In addition to her position at Community Teamwork, Ms. Martin is serving in her 6th term on the Lowell School Committee, and she volunteers with several local charities.
Chief Human Resource Officer
Lisa Wholey is a strategic and results-driven Human Resources Executive with extensive experience in nonprofit and corporate HR leadership. She has a proven track record in employee engagement, talent management, compensation and benefits, HR compliance, and workforce planning. Lisa is adept at leading HR transformations, implementing digital solutions, and driving organizational growth, including expertise in leadership coaching and engagement initiatives.
Currently serving as the Chief Human Resources Officer at Community Teamwork, Inc., Lisa has played a key role in expanding the workforce from 500 to 700 employees, digitizing HR processes, enhancing employee engagement, and modernizing compensation structures. She has held several HR leadership positions across various industries, including hospitality, financial services, healthcare, and property management, successfully implementing HRIS systems, employee recognition programs, and engagement initiatives.
Lisa holds a Master of Science in Behavior Management from Rivier College and is SPHR certified. She is also trained in Franklin Covey’s What Matters Most and she is certificated in Compensation from Cornell University. With expertise in HRIS & payroll systems, policy development, and DEI initiatives, Lisa is a trusted HR leader committed to fostering inclusive, high-performance workplace cultures.
Vice President, Communications and External Affairs
Kathleen joined Community Teamwork in 2018 as the Director of Development and Marketing. She has more than 20 years of Executive Leadership in Sales and Marketing for both large and small companies in the healthcare, technology, and non-profit worlds. She was the founding member of the Specialists On Call team, and instrumental in formulating the go-to-market strategy, launch and sales of the first nationwide commercial Teleneurology practice. She is also the co-owner of three successful Merrimack Valley restaurants with her husband Scott, and has been an active member of the Greater Lowell Community, serving as a Director on many non-profit boards, including; Middlesex Community Board of Trustees, the Boys and Girls Club of Greater Lowell, Board of Incorporators, Lowell General Hospital, Greater Merrimack Valley Convention and Visitors Bureau, and Greater Lowell Chamber of Commerce. Kathleen received her BBA from the University of Massachusetts Amherst and her MBA from Boston University. Kathleen resides in Lowell with her husband Scott.
Chief Planning and Development Officer
Ann Sirois is currently the Chief Planning and Development Officer for Community Teamwork. In her work with Community Teamwork Ann oversees Strategic Planning, CSBG, Quality Improvement, Development and Marketing and Communications. She has been with Community Teamwork since 2013, previously working in the Early Learning Program as the Family Support Director. Prior to coming to Community Teamwork, Ann worked at Head Start of Shawnee Mission (now Growing Futures) in Overland Park, Kansas, managing family services, enrollment, and community partnerships. She has a Master’s Degree in Family Mediation from the University of Missouri.
Chief Executive Officer
Karen Nastasia Frederick is the Chief Executive Officer of Community Teamwork, the community action agency serving the Greater Lowell area serving 71 cities and town in Middlesex and Essex Counties. Community Teamwork is also one of the nine regional non-profit housing agencies serving 41 cities and towns in Middlesex and Essex Counties. The agency currently has a budget of over $150 million and more than 600 employees. She has been Executive Director since 2003.
Ms. Frederick served as the agency’s Chief Program Officer for 5 years, overseeing all program operations, and as the Director of Community Teamwork’s Family Life Services Department, which administered one of the largest child care systems in Massachusetts for over 11 years. She has made her career in community action since 1978.
Karen holds a Bachelor’s Degree in Psychology from Merrimack College and a Master of Education in Child and Family Development from Tufts University. She has been an instructor on the adjunct faculty of Middlesex Community College, Wheelock College, and Lesley College.
Ms. Frederick is the former President of the Massachusetts Association of Early Education and Care, immediate past President of the Massachusetts Association of Community Action Agencies, and immediate Past President of the Department of Social Services Citizens’ Advisory Board. She serves on the Boards of Common Ground Development Corporation, Massachusetts Regional Housing Agency Association, and is a former member and Chair of the Dracut School Committee. She currently serves on the Boards of the Greater Lowell Community Foundation and The Bridge Club and as a corporator of Lowell General Hospital and the Greater Lowell Boys and Girls Club. She was appointed to Governor Patrick’s Education Task Force and has served on various appointed government committees and task forces.
Karen has most recently led in the efforts to combat homelessness as a founding member of the Greater Lowell Homeless Task Force, organizing leaders to work to develop low-threshold housing units in Lowell and Greater Lowell. She is also a staunch advocate for Early Education and Childcare in Massachusetts.
She was the recipient of the 2004 Thomas Kelakos Community Spirit Award from the Greater Lowell Kiwanis Club, and one of the recipients of the 2005 Distinguished Democrats Awards from the Greater Lowell Area Democrats. Karen also received the 2006 Celebration of Today’s Woman Award from Girls Inc. of Greater Lowell.
Senior Vice President, Housing and Homeless Services
Daniel has a wealth of experience in housing policy, program operations, and systems coordination, and track record of leading high-impact teams and building collaborative, community-based solutions to complex challenges.
Most recently Daniel was the Executive Director of Shelter Operations and Stabilization at Health Equity International and before that, he served as a Director of Field operations at then EOHLC formerly known as DHCD, as well as the leader in the SNAP benefits at DTA.
Daniel brings to Community Teamwork both the technical expertise needed in this moment, and a leadership style grounded in equity, strategy, and collaboration.
Director of Development
Margot Regan joined Community Teamwork in 2023 as the Director of Development. In her role she oversees individual and corporate giving, the CITC tax credit program, and fundraising/special events. An experienced fundraising and marketing professional, Margot has nearly two decades of experience working for nonprofits, helping them grow their visibility and raise critical funds.
Margot is an award-winning journalist and prior to her career in the nonprofit industry she worked at several New England newspapers including the Berkshire Eagle and The Eagle-Tribune. She attended Saint Michael’s College in Colchester, VT, where she earned a B.A. in English and Journalism. She is a member of the Holderness School Parents Association and lives in the Merrimack Valley with her husband and daughter.
Chief Technology Officer
As Chief Technology Officer, Bob oversees all aspects of Information Technology, Cyber and Surveillance Security and is responsible for integrating business needs and requirements into IT planning and operations.
Bob has been with Community Teamwork since April of 2021 and has served as Director of IT and Director of IT and Security. He has successfully led the implementation of IT solutions including Zoom Telephony, infrastructure and firewall upgrades, board room audio visual, integrated helpdesk, software distribution, site-to-site communications, and introduced a “How can I help?” environment.
Prior to joining Community Teamwork, Bob worked for over 20 years in the financial services industry as Lead Technical Project Manager, Director of IT Operations, and Vice President of IT. He has a BA in Technology and an MBA with a concentration in IT from the University of Phoenix. Bob also holds a PMP certification.
