About Us


Every year, BBBSLA impacts more 1,500 youth through five unique mentoring programs that serve children and youth in their communities, schools, and in the workplace. By building a strong, one-to-one and professionally-supported mentoring relationship to serve as a foundation for transformative impact and life skills learning, BBBSLA’s innovative approaches to expanding mentoring opportunities help to close both the achievement and opportunity gaps that exist for too many underserved children and youth.


To provide children facing adversity with strong and enduring, professionally supported one-to-one mentoring relationships that change their lives for the better, forever.


All children achieve success in life.




Tiffany Siart

President & CEO


[email protected]


Jovan Bowles

Director of Development


[email protected]


Josh Ciszek

Chief Operating Officer


[email protected]


Patti Johnson

Director of Marketing


[email protected]


Karine Melkonian

Director of Finance


[email protected]


Photo Credit: Dinneen Photography

Matthew Adams - Enrollment and Matching Specialist

[email protected] 213.213.2430

Anabel Arrazola - Enrollment & Matching Specialist

[email protected] 213.213.2415

Tamara Bingham - Match Support Specialist Supervisor

[email protected] 213.213.2414

Joaquin Campos - Match Support Specialist Supervisor

[email protected] 213.213.2437

Alberto Campos - Workplace Specialist

[email protected] 213.213.2408

Luis Ceja - School Based Specialist

[email protected] 213.213.2435

Dora Chin - Match Support Specialist

[email protected] 213.327.6313

Daisy Cortes - Match Support Specialist

[email protected] 213.213.2405

Maria Cortez - Match Support Speacialis t

[email protected] 213.213.2464

Carlos Donato - Workplace Site Specialist

[email protected] 213.213.2412

Xochilt Esqueda - Match Support Specialist

[email protected] 909.421.0623

Lyric Everly - Creative Services Manager

[email protected] 213.213.2439

Sofia Ferrandiz - Match Support Specialist

[email protected] 213.213.2441

Jose Flores - Enrollment & Matching Specialist

[email protected] 213.213.2440

Luis Garcia - Recruitment & Intake Specialist

[email protected] 213.213.2463

Sylvia Ghazarian - Manager of Individual Giving

[email protected] 213.213.2422

Gabriela Gonzalez - Workplace Site Specialist

[email protected] 213.213.2425

Deisi Gonzalez - Match Support Specialist

[email protected] 213.213.2442

Lizeth Guevara - Enrollment & Matching Specialist

[email protected] 213.213.2402

Sofia Hernandez - Office Manager

[email protected] 213.213.2419

Wendy Herrera Martinez - Match Support Specialist

[email protected] 213-213-2404

Bahar Jeldi - Manager of Workplace Mentoring Program

[email protected] 213.213.2421

Lisa Lampon - Manager of School Based Mentoring Program

[email protected] 213.213.2411

Yaiza Lara - Enrollment and Matching Specialist

[email protected] 213.213.2431

Wendy Lopez - Match Support Specialist

[email protected] 213.213.2406

David Lopez-Garvey - Manager of Bingo Operations

[email protected] 213.213.2400 ext. 2500

Celina Madrigal - Match Support Specialist

[email protected] 213.213.2413

Natalia Magana - Match Support Specialist

[email protected] 213.213.2436

Celeste Meza - Executive Assistant

[email protected] 213.213.2438

Sabrina Orozco - Development Associate

[email protected] 213.213.2403

Lesly Peralta - Manager of Recruitment, Enrollment and Matching

[email protected] 213.213.2462

Lupe Rincon - Match Support Specialist Supervisor

[email protected] 213.213.2417

Daniel Rodriguez - Recruitment and Outreach Coordinator

[email protected] 213.213.2420

Yvette Sanchez - College PAC Coordinator

[email protected] 213.213.2413

Krystleblue Santos - School Based Specialist

[email protected] 213.213.2461

Sofia Varona - CRS Intake Specialist & Receptionist

[email protected] 213.213.2426

Jenny Vasquez - Manager of Women in Entertainment Mentoring Program & College PAC Program

[email protected] 213.213.2413


The Board

The Board steers the strategic direction and vision of the agency as well as ensures fiduciary responsibility.

Laura Lizer - Chair

Lizer & Associates

Rick Unser - Treasurer

Lockton Insurance Brokers

Judge Michael D. Carter - Secretary

Los Angeles Superior Court

Brock Moseley - Vice Chair

Miracle Mile Advisors

Rebecca Campbell

Disney ABC Television Group

Megan Colligan

Paramount Pictures

Mike Daly

Disney Music Group

William R. Davis


Roy P. Disney

Shamrock Holdings

Mike Dowling

City National Bank

Shelli Hill

Inspired by Talent, LLC

Holly Jacobs

Sony Pictures Television

Erin Lavelle

Dalton Investments LLC

Sabin Lomac

Cousins Maine Lobster

Nicole Garris Lorey

Kaiser Permanente

Maria Marill

Sony Pictures Studios

Lance Markowitz

MUFG Union Bank

Marcellus McRae

Gibson, Dunn & Crutcher LLP

David Misch

Wells Fargo Securities

Byron G. Mobley, Sr.

CIT Commercial Services

Ret. Captain Evangelyn Nathan

Los Angeles Police Department

Jeffrey Rao

Fidelity Investments

Byron Reed

Wells Fargo

Jennifer Salke

NBC Entertainment

Victor M. Sanchez


Joao Dos Santos


Neil Smith

Heritage Probate & Trust

Tim Ward

McKinsey & Company

David Wehrly


Joni M. Weyl

Gemini G.E.L.


Trustees help further the goals and initiatives of the agency.

Adriana Balaban
Lance Etcheverry
Robert Howard
John Hunter
Max Jong
John Kobara
Sherry Lansing
Damon Lee III
Vicki Martin
Brad Shairson
Steve Soboroff
Nancy Taylor

Junior Board

The Junior Board supports the initiatives of the agency by recruiting new mentors, fundraising, and increasing overall awareness.

Stephanie Powers Kurtz Chair
Joshua Lau Vice Chair
Kevin Jessup Treasurer
Juli Logemann Secretary
Edd Benda
Samantha Chui
Marissa Enfield
Alice Haliburton
Carol Banh Keiner
Andie Lafontant
Steve Sandbo
Jessica Silvaggio
Christina Thiele-Yancy
Nadia Zaman

Alumni Board

The Alumni Board engages alumni Bigs and Littles.

David McMillan Chair
Jason Wilson Vice Chair
Jeremy Weinglass Secretary
Kaj Vazales Treasurer

Join the Alumni Board

The Guild

The Guild supports the goals of the agency through events.

Adriana Balaban
Naomi Bandison-Johnson
Christine Harte
Tree Mangen
Vicki Martin
Noelle Siart
Joni Weyl


BBBSLA has maintained strong and sustained financial stability toward ensuring that our growth best serves our families. Your financial support helps us provide our programs and services throughout Los Angeles County —so we can develop more college grads, community leaders and entrepreneurs. Big Brothers Big Sisters of Greater Los Angeles is an independent 501(c)3.