Steuart is the Co-Founder and Chief Executive for Northstar Fertility, which is focused on bringing together the very best people and companies in the surrogate and donor-assisted reproduction field. He works each day to improve the security and quality of services provided to all stakeholders in third-party reproduction and move towards a world where all people have the ability to grow their family. He oversees all aspects of Northstar's operations including both the shared-services and company portfolio.

Prior to founding Northstar, Steuart was a management consultant at Bain & Company in Boston and taught elementary school in rural Mississippi with Teach For America. He earned an undergraduate degree in philosophy and economics from Mercer University and an MBA and MS from the University of Michigan. He lives in the Boston suburbs with his wife and three daughters. Between Northstar and his family there isn’t much time for hobbies, but he often daydreams about the time when he can do more scuba diving, fly fishing, and golfing.

Sam is the Co-Founder of Northstar Fertility, which is a collection of companies focused on delivering industry leading fertility services to Intended Parents, Surrogates, Egg Donors and their families. He currently serves as President of Circle Surrogacy, where he is responsible for the overall management of the business, including meeting with prospective parents during consults. He finds the most joy both in supporting Circle's staff in their own growth and in seeing the many beautiful baby pictures that come across his desk as a result of all the hard work from the team. In addition, he contributes to Northstar's operations across the company portfolio, particularly within the new client intake and strategy teams.

Sam earned his undergraduate degree from Michigan State University and his MBA at the University of Michigan. He then spent time with both Deloitte Consulting and McKinsey & Company helping advise and build a variety of businesses. Having experienced fertility challenges when starting his own family, Sam understands firsthand the importance of support and help to fulfill dreams of parenthood. Sam and his wife are now blessed with three beautiful children with the help of IVF.

Christina DeRosa’s passion is launching and reinvigorating brands. She creates experiences and marketing expressions customers love, igniting real results for businesses. Christina’s pioneering spirit has touched consumer brands like Nickelodeon, Barbie, Xbox, and Cranium. And her impact has been equally felt in the B2B space where her work for clients like Progressive, BMW/Audi, Amazon, and Target received accolades.  With her left and right brain in balance, she excels at both Marketing and Product Management, bringing a unique skillset to the companies she chooses to work with.

As a leader Christina inspires her team to do work they’re proud of. And Northstar is no exception.  As Chief Marketing Officer, Christina is leading a brand transformation and operational uplevel across our corporate and portfolio companies that promises to unlock tangible results for years to come.

Residing in Boston with her husband James of 25 years, she is mom to three girls who are twenty-something (and are they something!) Christina decompresses by cooking globally inspired recipes, taking leisurely beach vacations, and reading with her mini-goldendoodle snuggled in.

Hillary leads all Northstar Fertility human capital and culture initiatives, bringing 25 years of human resources experience with her. She is responsible for developing and driving Northstar Fertility Group people strategies to support the company’s business goals. She leverages deep understanding of HR and is responsible for organizational development, culture, DE&I, talent acquisition, learning and development, HR compliance, compensation, and benefits for Northstar Fertility and their companies.

Before joining Northstar Fertility in 2022, she was Chief Human Resources Officer at Blue Cross & Blue Shield of Rhode Island where she helped distinguish it as one of the Best Places to Work in Rhode Island year over year. Prior to that, Hillary has held several leadership roles in both financial services and the hospitality industry. Hillary has been active in numerous community nonprofit organizations in New England – always focused on children and families – and most recently as a Board Member with the Boys & Girls Club of Northern Rhode Island.

Hillary resides in Rhode Island with her husband and two children where they take advantage of everything New England has to offer. You’ll likely find her in the city, mountains, or beach as they’re all an easy commute for day trips and long weekends. She also spends her spare time rooting for the many sports teams her girls play on, and loves to garden, and tend to her outdoor Koi pond.