Marc Rubert Sullivan

November 8, 1969October 25, 2018

Marc R. Sullivan, 48, of New Haven, passed away from a suspected heart condition at his home on Thursday, October 25, 2018. Born on November 8, 1969 in Flemington, New Jersey, he was the son of Noelle Sullivan of Windsor Locks and the late Robert Sullivan. Marc was a graduate of Hand High School, class of ’87. He served with pride and honor in the United States Army. Later in life, he was co-founder and partner in an insurance brokerage firm.

He had a passion for travel, friends, music and above all else, family. Marc never knew strangers - his instinct to reach out to others was his greatest show of humanity. He had communities everywhere, especially in the tows of Windsor Locks and New Haven Connecticut and Otisville Maine where he had homes. He provided shelter to several rescue dogs including two Saint Bernards, a Newfoundland and a Bernese Mountain dog, all of whom adored him. His love of life as well as his gregarious and generous nature enriched the lives of all who knew him. We are heartbroken by his loss.

Marc was a beloved uncle, brother and friend. Besides his mother Noelle, he is survived by four siblings, his two sisters, Kathleen Sullivan El Fallah and her husband Khaled of Tampa, Florida, Amy Sullivan Berkeley and her husband Duncan of Georgetown, MA, his two brother, Kenneth Biter and his wife Sheri of East Granby, and David Byter and his wife, Bonnie, of Westborough, MA. He is the proud nephew of J. Michael Sullivan and his wife Clare, Fran House and her husband Richard, Richard Biter and his wife Tina. He is also survived by two nieces and seven nephews: Isabella, Sarah, Ryan, Tarek, Quince, Jack and Gavin. He is the adoptive brother of Conor and Kyle Sullivan.

Marc was predeceased by his brother Sean Sullivan, and his father Robert Sullivan.

A funeral service will be held on Sunday, November 11 at 1:00pm at the First Congregational Church, 26 Meetinghouse Lane, Madison. Military burial will follow at West Cemetery in Madison, Connecticut. In lieu of flowers, donations can be made in Marc’s name to the Big Fluffy Dog Rescue, an organization dedicated to helping giant breed dogs in need.


  • Funeral Service Sunday, November 11, 2018
  • Burial Sunday, November 11, 2018

Marc Rubert Sullivan

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Rob Janson

November 15, 2018

I met Marc via my brother Kurt. He was a world wind character. When i told him I was imigrating Australia in a few days, he got in his car and traveled 30min to give me the phone number of an Australian fellow he met while traveling in Brazil. I subsequently phoned Clem when I arrived in Melbourne. Clem invited me skiing at Mt Buffalo where I met my first wife. The relationship resulted my wonderful son who is now 18.

Thanks Marc,
for all your generosity and love.


sean sullivan

November 7, 2018

During student roll call, first day of Junior yr High School, someone yelled "My Brother from another mother!" There sat a blond haired kid with a big smile. That was the first time I was introduced to him. It was quintessential Marc in hindsight. We became friends shortly there after and had been ever since. We shared a first apt in New Haven while matriculating at SCSU. Marc was always very independent and hard working from a young age. While most kids were grinding there way through college penny less, he was earning a great salary and leisurely travelling the world. I envied and applauded him for that. I rarely find professional "comedy" or comedians very funny. Marc on the other hand was the funniest person I've ever known. He took pleasure in making others laugh with his quick wit and self deprecating style. His generosity was unrivaled " Mi casa,es su casa" he'd often say to me. And he meant it. He loved to entertain. I’ve countless memories of us traveling all over. He was always up for anything. We'd meet up in Chicago for a Cubs game, fly to Ireland and see u2, hit Miami for ND/Alabama Championship game, Cruise the Mediterranean, to name a few..It was basically wherever & whenever, and I loved that about him. Equally rewarding are the memories of us just chilling. Marc was the most social person you could ever meet, and yet, ironically he never utilized "social" media He was too busy living in the moment. He was as present as it gets. A conversation with him was genuine. Some years ago when I was experiencing health issues, he would listen and provide advice. He cared about other people. He was larger than life with a huge heart. You couldn't ask for a better person as a lifelong friend. I always considered him to be more than that however, to me he always felt like a Brother.

My utmost prayers and deepest sympathy extends to the entire Sullivan and Biter family.

Rest In Peace Marc, You've gone way to soon!

Miss You Bro!!


Jim Polomsky

November 3, 2018

We are so very sorry for your loss. We live down the road from Marc on Thompson Lake. I’d like to share a recent example of Marc’s kindness and generosity. This September, I had relatives visit us at the lake from Myrtle Beach, SC. Because they could not all fit in our small cottage, they rented Marc’s lake house. A few days after they arrived, Hurricane Florence quickly formed and clobbered the Carolinas. Their flights were cancelled and, due to a health issue, they couldn’t make a 16 hour drive. They had no way to get home. I called Marc to ask if they could stay a few more days. He immediately said they could stay as long as necessary. Furthermore, Marc refused to accept any more money from them. His empathy for others going through difficult times was touching and much appreciated. We pray that God helps to ease the pain of losing Marc at such a young age.

Tina Janson

November 1, 2018

We are very sorrowed to hear about Marc or Marco as we always called him. Our hearts go out to the entire Byter and Sullivan family. We grew up with Marc in our college years and have had some of the best times of our lives together. He was the most generous and vibrant person. He had a gift to connect people socially and through his work. We have so many memories to share whether it be from CCSU, the ski house we shared in Okemo or our beach cottage in Milford to name a few. All would not be complete without him. Marco has given us life long friendships and so many great memories. We are so privileged to be apart of it. Our hearts go out to you all. Rest in peace Marco xoxo

Cynthia Price

October 31, 2018

Marc adopted my sons dog Barclay last January when my son passed away. Over the next several months I got to know Marc through phone calls and texts. He was the most patient man with me as I mourned the loss of my son and checked on Barclay. Marc was always willing to answer my calls/texts. He was also very generous offering my family to vacation in one of his homes!!! Wow! Who does this.... Marc Sullivan does!!!! I could never take him up on this offer as he had already done the kindest thing by taking care of Barclay. I will be forever grateful for this!!!! Something that struck me from the beginning about Mark was his relationship with his mother .
In my opinion this tells you everything you need to know about a person's character! He spoke so highly and lovingly about his mom. The day he adopted Barclay the first place he went was to introduce Barclay to his mother!! He wanted to make sure Barclay got along with his moms dog.
I want to exspress my deepest sympathy to his mom , family and to all that loved Marc! He was truly an honorable man! My prayers have been with all of you and will continue. I am very saddened by his loss!

Tim & Ginny Byrne

October 30, 2018

Marc was a caring, thoughtful and giving person. We know him through our son, Bryan Walsh. He was a wonderful friend to Bryan and will be missed. May he rest in peace.

Much love,
Tim and Ginny Byrne