EnterGain LLC is a consultancy focused on enterprise growth.  EnterGain empowers organizations to gain talent, ability, and scale. 


A to Z Media.png
Ashling logo.png
Because Music.jpg
dreamstage logo.png
Beggars Logo.png
constant artists logo.jpg
hipgnosis logo.png
iheartcomix logo.jpg
merlin logo - new.png
ninjatune logo.jpg
kickstarter logo.webp
m&g logo.png
niva logo.png
mom + pop logo.png
onerpm logo_edited.jpg
AIMP logo.jpg
Exceleration Music logo.webp
cydor logo.jpg
Krevare_400,h_400 no r.png
partisan logo.png
Rights Up White on Black.png
Saddle Creek.png
StopIt_ko 3.png
translation logo.png
Ultra Music logo.png
Warp Records.jpg

The Team

JC 500x500_20200124_b.png
James Celentano

Managing Director

James Celentano is a leader in management consulting, business development, operations, human resources and talent management.  James' unique cross functional expertise benefits Boards, C-level leaders and their organizations. He has made a lasting impact for C-level leaders and their organizations through his HR leadership roles at operating companies such as The Madison Square Garden Company and at Warner Music Group.  In client facing organizations Extensis, Hudson Gain and Korn Ferry, he built businesses, launched new services, cultivated client relationships and delivered solutions that impacted client growth, streamlined operations and managed risk. 

James is an adjunct at NYU’s Steinhardt School.  He holds an MBA from Columbia Business School, a BA in Psychology from the University of Pennsylvania and an SPHR certification.


James’ outside interests include mentoring, music and mountain biking.




MC 20200124_c2.png
Mikal Celentano

Managing Director

Mikal Celentano is a leader in marketing, premium goods and operations.  Mikal's clients more effectively attract customers, grow relationships, and align their business operations with their strategic leadership agenda.  At Hotathon she harnessed social media and the viral power of music to lead awareness campaigns for select non-profit organizations.  Mikal spent 17 years in product management, marketing, international marketing and ecommerce at Tumi, the luxury travel goods company.  She relaunched Tumi’s direct to consumer store which outperformed the company’s goals and prior online stores.  She also managed operations for leadership consulting firm Hudson Gain Corporation. 


She holds an MBA from Columbia Business School and a BA in Art History from Wellesley College.


Mikal’s outside interests include art, cause marketing and cooking.




Yuna 500x500b.jpg
Yuna Perry

Senior Advisor

Yuna Perry is a Senior Advisor on EnterGain’s extended team. She brings deep expertise in executive recruiting, organizational design, workforce development and diversity hiring.  Yuna works across the consumer, apparel, financial services, media and technology sectors.  She is also a Managing Director at Zeitgeist Reach, the educational software and community engagement solution focused on upskilling and empowering talent in empowerment zone communities.

Prior to her roles with EnterGain and with Zeitgeist, Yuna was a leader in the internal executive recruiting team at Audible, an Amazon Company in direct support of its CEO.  At Audible – and in prior roles at NBC Universal, JPMorgan Chase and Nike – Yuna attracted and hired C-level talent across a wide range of functions including marketing, finance, content, operations, technology and more. 

Yuna received her BA degree from The University of California, Davis and completed work toward a PhD in Media Ecology at NYU.  


Karol Mattes from LinkedIn squared off.jpg
Karol Mattes

Senior Advisor

Karol Mattes is a Senior Advisor on EnterGain’s extended team.  A leader in executive recruiting, management consulting, business development, human resources and talent management, Karol brings a collaborative, consultative approach to companies seeking best-in-class executives and human capital processes across the media, entertainment and technology landscape. Karol has extensive experience working with Boards and C-level decision makers to translate business objectives into hiring criteria, and has filled roles across a wide range of functions including sales, marketing, digital, sponsorship, finance, operations and more. 

Her prior experience includes leadership roles – both paid and pro-bono – at organizations such as Korn/Ferry and PEO International, where she has helped organizations conceptualize and enact impactful new programs, develop learning and training curriculum, and manage strategic hiring and onboarding.

Karol holds an MBA from the Darla Moore School of Business at the University of South Carolina, and a BS in Journalism from the University of Illinois in Champaign-Urbana.  She has lived and worked abroad in both the UK and Italy and is fluent in Italian.


An award-winning weaver and avid baker and knitter, Karol’s personal passions include creative pursuits, family and volunteering within her community.




  • Grey LinkedIn Icon
  • Grey LinkedIn Icon
  • Grey LinkedIn Icon
  • Grey LinkedIn Icon


EnterGain is proud to be a member of the following organizations.

WIM logo.png
shesaid.so logo.png
SHRM NYC logo.png
SHRM logo.png
NJBIA logo.png


When you choose EnterGain for your executive hiring, leadership development and strategy initiatives, you choose a healthy future for our planet.  EnterGain is committed to sustainability. We partner with NativeEnergy to ensure that we offset the carbon impact of all of our internal and office operations, technology energy usage and consultant and candidate travel.  Thanks to our partnership with public benefit corporation NativeEnergy.com we are proud that our internal operations and client projects are carbon neutral since 2019.  Click to see the initiatives supported in 2019 and 2000.

Contact Us

Thanks for submitting!