Our Team

Private equity and operating expertise at every level.

Meet The E78 Leaders

E78 has a diverse team of experts with years of experience solving industry-related problems with some incredible backgrounds. Discover the people behind our company.

Employees (No Pop Up)
Duff Bourassa
Managing Director DSO-MSO Growth
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Managing Director DSO-MSO Growth
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Duff Bourassa

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Managing Director DSO-MSO Growth
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Jonathan Kern
Chief Development Officer
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Chief Development Officer
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Jonathan Kern

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Chief Development Officer
Jonathan joined E78 Partners in 2023 as Chief Development Officer to lead M&A activity and drive the firm’s inorganic growth strategy.  As CDO, Jonathan partners with the executive team and business unit leaders to define acquisition priorities and identify unique companies that will bring additional strategic capabilities to E78 clients and leads the entire acquisition […]
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Crawford Powell
Managing Director
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Managing Director
FP&A Services
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Crawford Powell

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Managing Director
FP&A Services
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Ofelia Sanchez
Managing Director
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Managing Director
Fund Admin & Accounting Services
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Ofelia Sanchez

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Managing Director
Fund Admin & Accounting Services
Ofelia is a Managing Director at E78 Partners. Prior to E78, she was a Partner at Stern Cassello & Associates, LLC. Ofelia specializes in managing client engagements for Private Equity and Venture Capital (“PE and VC”) clients. She also supports family offices, individuals and other entity types. She focuses on engagement management and operational excellence by […]
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Jim Stern
Managing Director
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Managing Director
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Jim Stern

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Managing Director
Jim Stern founded the firm in 1988.  Jim specializes in tax planning and compliance for individuals and wealthy families as well as partnerships, corporations and not-for-profits. Jim uses his tax experience and expertise to help clients minimize their tax burden and plan for the future while complying with the latest tax laws and regulations. Prior to starting […]
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Sam Cassello
Managing Director
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Managing Director
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Sam Cassello

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Managing Director
Sam joined the firm as a partner in 1991. Sam provides tax and accounting services to high net worth individuals, their closely held companies and their families. He has helped his clients in many different types of business including:  private equity, professional services, financial services, technology, manufacturing, and real estate. Prior to joining the firm, […]
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Chuck Gottschalk
Executive Managing Director
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Executive Managing Director
Executive Services
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Chuck Gottschalk

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Executive Managing Director
Executive Services
Chuck Gottschalk leads the E78 Executive Services group. Chuck Gottschalk founded NextLevel (which was aquired by E78 in 2021) with the clear intent of building a premier firm comprised of exceptional executives collectively committed to creating value in our clients; doing so through excellence in service, knowledge sharing to bring the best of our firm-wide capabilities, and a collaborative spirit always focused on our clients’ best interests.
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William Fraser
Senior Director, Technology Consulting Services
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Senior Director, Technology Consulting Services
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William Fraser

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Senior Director, Technology Consulting Services
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Paul Fitzpatrick
Senior Director, FAOps
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Senior Director, FAOps
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Paul Fitzpatrick

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Senior Director, FAOps
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Rachel Morrison
Senior Director, Fund Solutions
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Senior Director, Fund Solutions
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Rachel Morrison

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Senior Director, Fund Solutions
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Marc Patterson
Managing Director of Growth, Private Equity, and Financial Services
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Managing Director of Growth, Private Equity, and Financial Services
Private Equity Solutions
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Marc Patterson

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Managing Director of Growth, Private Equity, and Financial Services
Private Equity Solutions
Marc Patterson is Managing Director of Private Equity and Financial Services at E78 Partners. Marc has over two decades of experience on Wall Street both investing in and advising Private Equity Funds, Venture Capital Funds, Hedge Funds, Family Offices, Growth-stage Companies, and Institutional Investors.
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Corey Allen
Accounting Services – Director
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Accounting Services – Director
Consultative & Interim Solutions
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Corey Allen

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Accounting Services – Director
Consultative & Interim Solutions
Corey is a sports enthusiast and loves providing game changing opportunities for his clients.  He enjoys taking an entrepreneurial approach through a strong network of business allies and innovative thinking from years of serving on boards and working with corporations.   Corey leverages over 20 years of public accounting, corporate accounting, and consulting experience, across various […]
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Kim Parker
Accounting Services – Senior Director
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Accounting Services – Senior Director
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Kim Parker

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Accounting Services – Senior Director
Kim is our self-proclaimed “CFO”, that’s “Chief Fun Officer”.  Exceptional client service is really what she’s all about.  Always looking for ways to inspire, engage, delight or create a lasting solution or memory.  Kim’s focus on Finance and Accounting for over 20 years has earned her a reputation for identifying game changers that make the difference.  Her […]
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Brittany Burke
Accounting Services – Recruiting Director
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Accounting Services – Recruiting Director
Consultative & Interim Solutions
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Brittany Burke

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Accounting Services – Recruiting Director
Consultative & Interim Solutions
Brittany, a friend to all and completely “lovable” from the first minute you meet her.  She enjoys creating meaningful and lasting relationships by being an advocate and communication channel for her candidates.  With her diverse background, including her time in Human Resources, Brittany truly believes she has found her calling in recruiting game changing talent […]
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Jaime Chisolm
Accounting Services – Recruiting Director
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Accounting Services – Recruiting Director
Consultative & Interim Solutions
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Jaime Chisolm

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Accounting Services – Recruiting Director
Consultative & Interim Solutions
Jaime (not Jamie) holds records for her fast talking, get to the point, personality, and her long eyelashes.  She wants to get you working so if you’re looking to get busy, give her a call.  Jaime loves to parachute top caliber accounting experts into her clients for interim and consulting projects.  While she started her […]
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Theresa Lopez
Accounting Services – Resource Coordinator
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Accounting Services – Resource Coordinator
Consultative & Interim Solutions
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Theresa Lopez

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Accounting Services – Resource Coordinator
Consultative & Interim Solutions
Theresa hailed as a “wizard at streamlining chaos”, boasts over 13 years of dynamic experience in project management, administration management, and relationship cultivation. Her passion for continuous improvement and innovation has driven her professional development, staying at the forefront of industry trends and best practices. Theresa’s zest for life is fueled by connecting with new […]
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Michael Gangnath
Director of Growth
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Director of Growth
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Michael Gangnath

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Director of Growth
Michael serves as the Executive Managing Director over Accounting Services of E78 Partners.  Michael’s the one with the funny English accent who leads this team with his strategic and operational vision. His priority is the success and growth of the E78 Partners team, allowing them to focus on the needs of our clients and candidates.
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Executive Leadership
John Signa
Founder and CEO
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Founder and CEO
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John Signa

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Founder and CEO
John Signa founded E78 Partners with the vision of building a specialty consulting practice dedicated to solving the unique financial and operational needs of private equity firms and their portfolio companies. As CEO, John is responsible for developing and executing the firm’s strategy and creating value for all key stakeholders.
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Daniel Shin
Chief Operating Officer
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Chief Operating Officer
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Daniel Shin

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Chief Operating Officer
Dan serves as the Chief Operating Officer of E78 Partners. Dan is a data-driven executive with a deep finance and analytics background spanning multiple industries and contexts. Dan understands the power of information and has spent the better part of his career transforming organizations to partner with enterprise stakeholders to enhance business outcomes.
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Adam East
Chief Financial Officer
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Chief Financial Officer
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Adam East

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Chief Financial Officer
Adam East is a Managing Director and co-founder of E78 Partners. Adam has firm responsibilities across corporate finance, financial reporting, analysis, and firm administration. Adam also leads client engagements for private equity clients, with an emphasis on Interim Executive roles, transaction advisory services, and performance enhancement projects. Prior to E78, Adam worked at Sterling Partners […]
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Sarah Purlee
Chief Human Resources Officer
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Chief Human Resources Officer
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Sarah Purlee

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Chief Human Resources Officer
Sarah serves as E78's Chief Human Resources Officer. As a “People First” leader, she's committed her career to supporting businesses in becoming great places to work. This isn’t always an easy task as client demands, market volatility, and leadership changes can create a feeling of uncertainty. Sarah views it as her job to create a pathway between the strategic goals of the organization and its most valuable asset- its people.
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John Buccola
Chief Technology Officer
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Chief Technology Officer
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John Buccola

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Chief Technology Officer
John Buccola is a highly experienced IT Leader at E78, where he oversees all IT related efforts at E78.
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Abbie Diamantopoulos
Chief of Staff
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Chief of Staff
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Abbie Diamantopoulos

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Chief of Staff
Abbie serves as Chief of Staff at E78 Partners.  Abbie’s primary role is responsible for managing the day-to-day operations of the company and ensuring that the CEO’s vision is executed effectively. She works closely with the executive team to develop and implement strategies that drive growth and profitability. Abbie believes data drives decisions, and has […]
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John Cataldo
Executive Managing Director
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Executive Managing Director
Cost Management Services
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John Cataldo

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Executive Managing Director
Cost Management Services
John is a highly accomplished Executive Managing Director at E78, where he co-leads the company's Cost Management Services (CMS) Group. With extensive experience in managing complex technical projects and optimizing business operations, John is responsible for the overall management and strategic direction of E78's cost management services.
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Lisa Clarke
Executive Managing Director
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Executive Managing Director
Executive Services
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Lisa Clarke

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Executive Managing Director
Executive Services
Lisa Clarke is executive managing director of executive services with E78 Partners. She has 25 years of experience serving in operating roles for organizations in the manufacturing, technology, and services industries, and has held executive roles across a wide range of operating disciplines in startup and mid-market companies. She has a track record of success […]
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Scott Raspa
Head of Marketing
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Head of Marketing
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Scott Raspa

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Head of Marketing
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Senior Leadership
Vince Calcagno
Executive Managing Director
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Executive Managing Director
Fund Solutions
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Vince Calcagno

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Executive Managing Director
Fund Solutions
Vincent leads our Fund Solutions group and specializes in C-Suite strategic, operational, financial, accounting, tax and compliance consulting for the alternative investments industry, and the investment professionals and family offices who invest in and sponsor private fund products.
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Nick Castoria
Executive Managing Director
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Executive Managing Director
Fund Solutions
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Nick Castoria

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Executive Managing Director
Fund Solutions
Nick is a highly accomplished Managing Director of Fund Solutions at E78 Partners, with a proven track record of success in the investment industry. He joined E78 through the acquisition of Agile Fund Solutions LLC, where he was the Founder and COO.
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Dan Stankey
Managing Director
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Managing Director
Executive Services
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Dan Stankey

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Managing Director
Executive Services
Dan is the former Founder and CEO of Outliers, LLC. Here he showcased his expertise leading initiatives to refine the accounting functions of portfolio companies in the lower middle and middle market private equity sectors, as well as family offices. With an arsenal of tools and methodologies he developed from his tenure as a private […]
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Brett Lawson
Executive Managing Director
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Executive Managing Director
Accounting Services
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Brett Lawson

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Executive Managing Director
Accounting Services
Brett serves as the Executive Managing Director over Accounting Services of E78 Partners. Brett’s the one with the funny English accent who leads this team with his strategic and operational vision. His priority is the success and growth of the E78 Partners team, allowing them to focus on the needs of our clients and candidates.
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Sabiha McConnell
Managing Director
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Managing Director
Accounting Services
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Sabiha McConnell

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Managing Director
Accounting Services
Sabiha brings over 20 years public accounting and consulting experience across various industries, including manufacturing, oil field services, retail, oil and gas, and energy.  Her areas of focus include SEC reporting, technical accounting, internal controls and internal audits, pre-audit and IPO readiness, system implementations, and business process transformation and improvement. Sabiha’s technical background, experience, and […]
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Kristy Boles Headshot
Kristy Boles
Managing Director
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Managing Director
Contingent Executive Search
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Kristy Boles Headshot

Kristy Boles

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Managing Director
Contingent Executive Search
Kristy brings over 20 years of experience in recruiting, leadership, and business development.  As a proven performer, leader, and team player she has consistently delivered results throughout her career.  With an uncanny talent of staying level-headed and telling it like it is, she brings passion to every relationship and strives to be a recruiting partner […]
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Rachel Seashore
Managing Director
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Managing Director
Accounting Services
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Rachel Seashore

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Managing Director
Accounting Services
Rachel leads the E78 Accounting Managed Services and Fractional Support Services groups and has more than 20 years of progressive financial and operational leadership. She is a classically trained CPA that has built accounting and operating teams across several industries, with extensive experience in startup, high growth, and M&A environments. Rachel began her career with […]
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Garrett Rizk
Managing Director
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Managing Director
FP&A Services
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Garrett Rizk

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Managing Director
FP&A Services
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Crawford Powell
Managing Director
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Managing Director
FP&A Services
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Crawford Powell

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Managing Director
FP&A Services
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Jake Lunney
Managing Director
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Managing Director
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Jake Lunney

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Managing Director
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Ken Schatz
Managing Director
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Managing Director
NetSuite Services
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Ken Schatz

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Managing Director
NetSuite Services
As the Managing Director for E78 Partners’ ERP Systems and Services, Ken’s ultimate goal is ensuring the successful adoption and use of Oracle NetSuite and Sage Intacct for our clients. In this role, he is involved in everything from sales enablement to people management to delivery and is tasked with growing and maturing our industry-leading […]
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PJ Wright
Managing Director
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Managing Director
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PJ Wright

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Managing Director
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Joe Kwasniewski
Managing Director
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Managing Director
Private Equity Solutions
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Joe Kwasniewski

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Managing Director
Private Equity Solutions
Joe is a Senior Managing Director of Commercial at E78 Partners. Joe joined E78 through the acquisition of Cadilus Inc., where he was the Chief Commercial Officer and at the forefront of building an innovative go-to-market and sales capability.
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Ofelia Sanchez
Managing Director
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Managing Director
Fund Admin & Accounting Services
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Ofelia Sanchez

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Managing Director
Fund Admin & Accounting Services
Ofelia is a Managing Director at E78 Partners. Prior to E78, she was a Partner at Stern Cassello & Associates, LLC. Ofelia specializes in managing client engagements for Private Equity and Venture Capital (“PE and VC”) clients. She also supports family offices, individuals and other entity types. She focuses on engagement management and operational excellence by […]
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Jim Stern
Managing Director
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Managing Director
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Jim Stern

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Managing Director
Jim Stern founded the firm in 1988.  Jim specializes in tax planning and compliance for individuals and wealthy families as well as partnerships, corporations and not-for-profits. Jim uses his tax experience and expertise to help clients minimize their tax burden and plan for the future while complying with the latest tax laws and regulations. Prior to starting […]
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Sam Cassello
Managing Director
Meet Sam
Managing Director
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Sam Cassello

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Managing Director
Sam joined the firm as a partner in 1991. Sam provides tax and accounting services to high net worth individuals, their closely held companies and their families. He has helped his clients in many different types of business including:  private equity, professional services, financial services, technology, manufacturing, and real estate. Prior to joining the firm, […]
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Howard Nurtman
Senior Director
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Senior Director
Fund Solutions
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Howard Nurtman

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Senior Director
Fund Solutions
C-Suite Executive Management, Controller & Support Services, Fund Launch Formation, Regulatory & Compliance Services, Advisory Support Services, ESG Services, Fund Admin & Accounting, Investor Services & Reporting, Finance Services, Portfolio Monitoring
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Scott Marrone
Senior Managing Director
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Senior Managing Director
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Scott Marrone

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Senior Managing Director
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Brad Venuti
Managing Director
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Managing Director
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Brad Venuti

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Managing Director
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Paul Budak
Managing Director
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Managing Director
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Paul Budak

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Managing Director
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Doug Adler
Managing Director
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Managing Director
Executive Services
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Doug Adler

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Managing Director
Executive Services
Doug Adler has 30 years of experience driving shareholder value and maximizing outcomes as a trusted strategic and operational financial leader and advisor, having built numerous leading practices at Investment Banking and Consulting firms and as a CFO for a PE-backed Technology Services company. Doug is an active member of the Portland area community. He […]
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