Skip to main content


On WeddingWire since 2017

Harken Event Company is a wedding and event planning company based in Billerica, Massachusetts. Formerly known as Mosaic Event Group, these elite planners have over 15 years of experience in coordinating dream wedding celebrations. Their ethos is to go above and beyond for every client to deliver an unforgettable wedding day.

Services Offered

Harken Event Company offers full planning, partial planning, month-off management, and day-of coordination, along with setup and cleanup services. Whether you wish for someone to do all the work for you, or just want a professional opinion, these experienced planners can assist. No matter your wedding vision, Harken Event Company can accommodate your needs and suit your style. They also offer an array of themed event rentals to enhance your decor and can provide custom signage for your special day. Additional services include:

  • Budget analysis
  • Timelines
  • To-do lists
  • Guestlist and RSVP management
  • Vendor and venue referrals
  • Event design and decor

Frequently Asked Questions

What is the starting price for day-of wedding coordination?


What is the starting price for partial wedding planning?


What is the starting price for full wedding planning?


Do you offer an hourly rate?


What is the hourly rate?


What wedding events do you provide services for?

Rehearsal Dinner

What wedding planning services do you offer?

Day-of Coordination
Full Planning
Partial Planning

What weddings do you have experience planning?

Double Weddings
illustration question

Any other questions?

Message vendor
5.0 out of 5 rating
WeddingWire Couples' Choice Awards 2023 Winner
46 Reviews
  • Quality of service
    5 out of 5 rating
  • Average response time
    5 out of 5 rating
  • Professionalism
    5 out of 5 rating
  • Value
    5 out of 5 rating
  • Flexibility
    5 out of 5 rating
100% Recommended by couples

34 User photos

46 Reviews See all
Allyson M. Married on 12/03/2022
5 out of 5 rating

Hire Shay!!

Shay is a rockstar. Not only did I enjoy our entire planning process by working with her but the way she handled a situation for us is worth more than gold! Our photographer was two hours late (even though Shay had a detailed timeline he was given) She handled that disaster with grace and professionalism. She kept the flow going for my husband and I. Her team did a beautiful job at the venue decorating and clean up!! Thank you Shay, I would get married again to hire you again! Thank you!!
Natalie W. Married on 09/04/2022
5 out of 5 rating

Just hire her already!

I truly do not have enough words to describe how incredible Shay was to work with. She made the entire planning process so much smoother and easier. Her knowledge and organizational skills are unmatched. Seriously! She did not miss a single detail of things we asked for. And on top of it all, she managed to juggle all of our crazy family dynamics and truly plan the perfect wedding weekend for us.

Throughout the whole planning process she was thorough and hard working, extremely communicative, and a comforting and reassuring mediator. On the wedding day, she never stopped moving. My husband and I work on movies and we joked all day that we felt like Shay was our director on set. She made sure everything happened that we asked for and never missed a beat.

I truly feel blessed that we found Shay. I know our wedding day was 10x better than it would have ever been had we not hired her. She is the most diligent, thoughtful, and kind person. I will be forever grateful for her help in planning our big day.
Jacki G. Married on 09/04/2022
5 out of 5 rating

Best event planner ever

Shay was by far the best experience we had planning this wedding! She was responsive and available within a reasonable amount of time to our needs. She just is so detailed oriented and a perfectionist like me that I finally learned to let go and trust her. I would highly recommend her services! We miss working with her now that the wedding is over.
illustration stars

Are you interested?

Message vendor


WeddingWire Couples' Choice Awards 2023 Winner
WeddingWire Couples' Choice Awards 2022 Winner
WeddingWire Couples' Choice Awards 2020 Winner
WeddingWire Couples' Choice Awards 2019 Winner
WeddingWire Couples' Choice Awards 2018 Winner

Real Weddings

Liz & Dave
96 photos · 09/23/2018



Other vendors in Boston for your wedding

Wedding Vendors