About Us

Woman Owned

Birchtree Catering is a small, woman-owned company that began in 2008, focusing on local sourcing, seasonal menus, and scratch cooking in Philadelphia, PA. Our waste is composted and recycled in our kitchen and at events, and we choose sustainable options whenever feasible. 

Love Your Food

When Birchtree began catering in 2008, we were inspired by the bounty that local farms and markets had to offer. We value the close relationships we’ve built with our local farmers, artisans, and vendors – and our clients can taste the difference! We are proud of our scratch kitchen, where much of our food — from ricotta and jams to bread and pasta — is made in house. Our dishes are made with care and from whole ingredients, guaranteeing fresh and unique seasonal flavors.

Local Sourcing

We source locally and sustainably whenever possible for dairy, cheese, eggs, meats, produce and herbs. Seafood is carefully selected for sustainability and quality.

Low Waste

As part of our commitment to environmental responsibility, Birchtree has partnered with a commercial composter. Recycling and composting allows us to strive for a one-trash-bag policy at events.

From the Ground Up

We built our brand slowly by using rental kitchens, hosting tastings in our homes, and growing relationships with vendors and farmers. Today our commissary kitchen is located inside Globe Dye Works in Frankford, Philadelphia, and we remain a small business with a dedicated staff, limited events per weekend, and a strong commitment to every client. Our team was honored to win 2015’s “Best of Philly” for Party Food, the 2019 ImpactPHL Award from the Chamber of Commerce, we are listed in Philadelphia’s Good Food Caterers Guide, and our food quality standards have been recognized by Grid Magazine, the Sustainable Business Network of Philadelphia, The Knot Magazine and Philadelphia Wedding Magazine.

Sourcing Index:

  • Baldor Specialty Foods
  • Birchrun Hills Farm
  • Calkins Creamery
  • Cherry Grove Farm
  • Common Market
  • Downtown Cheese
  • FarmArt Produce
  • Gehman Family Farm
  • Germantown Kitchen Garden
  • Green Meadow Farm
  • Fishtown Seafood
  • Iovine Brothers Produce
  • KP’s Fine Meats
  • Mother Earth Organics
  • Passio Quality Meats
  • Pequea Valley Farms
  • Pretzel Day Pretzels
  • Samuels and Sons Seafood
  • Sandy Ridge Farms
  • Sunny Harvest Farms
  • Third Wheel Cheese
  • Valley Shepherd Creamery
  • Weaver’s Orchard
  • Z Food Farm

Continue to scroll to see our favorite vendors we love to work with at events.

Our Team

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A self-taught planner and entrepreneur, Allegra focuses on marketing and development for Birchtree. She served as Chief Operating Officer for the Sustainable Business Network of Philadelphia, and is a graduate of the Goldman Sachs 10,000 Small Businesses Program. The company’s growth has positioned them as industry leaders in Philadelphia, with a reputation for the highest quality food and service at weddings and events, and a commitment to sustainability that exceeds expectations.

Ajah Headshot

Ajah developed a passion for cooking at a young age, which led her to attend Swenson Arts and Technology High School’s culinary arts program that prepared her for a career in the food industry. Through an internship she began working at The Union League of Philadelphia at 16 years old, which cemented her love of the kitchen. From there she attended Johnson and Wales Providence, and through another internship, developed into a full-time position at Jeffrey A. Miller Catering. After the birth of her daughter, Ajah came to Birchtree in search of a different pace, where, she says, “what started as a job turned into a family.” She loves feeding people, and is a big fan of love, so cooking for weddings is her favorite part of her role. Her talent for running the kitchen and her expertise in executing delicious meals for large-scale events makes Ajah Birchtree’s secret ingredient.

Spencer has always believed that food should never just be a necessity, but a joy. Originally a chef, Spencer is a Philly native who has worked in every aspect of the events industry. From small niche catering, private chef work, weddings, large corporate and academic food service, to fine dining and specialized high-end productions, he strives to create a fully curated experience for every event. Spencer brings a wide range of experience and a holistic approach to catering and event planning, maintaining that everyone should feel like a guest at their own party.


Andreas has worked as a server and manager in some of the best and busiest restaurants in Philadelphia, including Susanna Foo, Le Bec-Fin and Davio’s. With his extensive experience in training and educating staff throughout the city, he has maintained high standards for ensuring Birchtree’s employees are treated fairly.


Agi developed a passion for locally grown and seasonally sourced foods while living in the farm rich Willamette Valley of Oregon. Returning to her Philly roots, she combined that passion and a love of hospitality into a well rounded experience managing some of the most well known restaurants in
Philadelphia including Fork, Rae and Paradiso. From creating cocktail recipes to overseeing event operations, Agi enjoys every aspect of catering.


With 15+ years of teaching experience in and around Philadelphia, Kellieann brought her organizational skills to Birchtree. She has fond memories of cooking with her grandmom and making homemade chocolates with her mother. She was drawn to Birchtree because of our local sourcing and sustainable practices – recycle, reduce, reuse!!

Recent Press

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Sustainable Catering in Philadelphia

Birchtree’s owner Allegra Derengowski is featured in Subkit’s Entrepreneur Stories. Read about her favorite parts of the job!

Food Waste Business Challenge

The city’s Office of Sustainability has introduced the program, called the Philadelphia Food Waste Business Challenge, to investigate ways to reduce restaurant food waste. Run in partnership with the Center for EcoTechnology, the program will provide resources to help participating businesses prevent, donate and recycle wasted food. – Read the full story

Excellence Award Winner

This fall we were honored to win the Chamber of Commerce ImpactPHL Award. This goes to a business that is focused on people, planet and profit. Read owner Allegra Derengowski’s take on what makes Birchtree such a special company.

Favorite Vendors

We love recommending other local small businesses for all of your event needs like desserts, photography, music, design, planning, and vintage and specialty rentals. We list some of our favorites here that deliver exceptional quality, and during your planning process we can curate a list that fits your vision.

Birchtree is now closed to new inquiries.

Thank you for 15 amazing years!