Tom Barnes is one of the two founding partners of Calibre One and is based at our North American Headquarters in San Francisco. With over 20+ years of experience in recruiting at the senior level, Tom has devoted his time to the acquisition of senior human capital for various technology industries and has focused exclusively on board positions, CEOs and their direct reports.e: firstname.lastname@example.org
James is a co-Founder and Managing Partner of Calibre One and manages the firm's activities in the EMEA region, based out of London.
With over 20 years of experience, his major focus has been on recruiting at Board, and C-level for businesses headquartered in Europe. He works closely with the private equity community and is a trusted advisor to a number of funds. He has also managed a vast number of leadership assignments for US companies across the EMEA region.
James holds a degree in Biological Sciences. Outside of work he is an active angel investor in tech companies, a parent to twin boys and an avid sports enthusiast (anything, but especially golf and rugby).e: email@example.com
Dan co-leads the North America operations and is a participant in Calibre One’s future growth strategy. With over a decade of executive search experience, clients and industry executives frequently leverage Dan’s perspective by seeking his advice on strategy as well as Board and company leadership selection.
He has built numerous senior management teams, placing Board Members, CEO's, CXO's, GM's and VP executives into public and private-sector technology & services companies in functions spanning General Management, Engineering, Sales, Marketing / Product, IT and Service Operations.
Previously, Dan was the Technology Practice Leader - Americas Region for Boyden, one of the largest retained executive search firms in the world. As one of their most active recruiters, he spearheaded the direction of the regional practice while managing key client relationships within the Global Technology and Clean Tech verticals. Dan’s prior experience includes serving as a Partner of a global executive search firm, where he led the Emerging Growth Companies Practice while also focusing on Fortune 1000 senior-level assignments; and as President of Grosh Associates for several years - a highlysuccessful boutique search firm that he founded. He began his career with Northwestern Mutual Life.
Dan holds an MBA from Golden Gate University and a BA in Communications from the University of Minnesota. He resides in the Bay Area with his wife & daughter and enjoys golf, tennis, skiing, travel, and music. Dan also holds leadership roles within a number of local charities, community groups, and professional associations.e: firstname.lastname@example.org
Hector co-leads the firm’s EMEA activities and is based in London. He has over a decade of experience working with private equity funds and their portfolio companies. He has supported on numerous transactions by referencing management teams and appointing Senior Advisors and buy-in leadership to companies, and has made a significant number of Board and senior appointments to portfolio companies.
Having worked for two boutique headhunting firms in London, Hector founded Hatton Grange in 2010 making board appointments across a variety of private equity-backed companies in retail, technology, healthcare, business services and manufacturing. Hatton Grange was acquired by Calibre One in 2015.Prior to becoming a headhunter, Hector pursued a career in the Arts, firstly as a pianist and conductor, latterly as Artists’ Manager of Scottish Opera. He graduated from the University of York with a BA in Music. Hector continues to perform as a member of the Philharmonia Chorus and is involved in making pro bono appointments to Arts Organisations in the UK. e: email@example.com
Diane has been helping grow industry leading businesses through executive search for over 20 years.
She brings to Calibre One a proven track record of recruiting CxO’s and VP’s for some of the most influential investors and entrepreneurs, as well as market-leading growth companies in the software, internet, and health sectors.
Before Calibre One, Diane worked as a partner for three boutique executive search firms conducting C-level and VP-level assignments across the software, health and digital media industries. Previously, Diane was a Managing Director at Ramsey Beirne Associates, one of the leading internet and technology recruiting firms in the world. As the sixth employee of the company, Diane worked closely with the firm’s Founder, David Beirne, and conducted numerous senior-level searches for pioneering companies and investors in the software and internet industries. Searches that Diane conducted helped to launch or bring to prominence some of today’s best known companies in the Internet and software sector, including eBay, Netscape, Microsoft and Healtheon/WebMD.
Over the last 20 years, Diane McIntyre has overseen numerous searches for the role of CEO, President & COO, and VP across all functional disciplines.
Diane lives in New York with her husband and four children. She is high-energy and enthusiastic about exercise, music as a singer/pianist, and about anything health/medical related. In her spare time, she can be found volunteering as an EMT, or in the community as an active member of her church.e: firstname.lastname@example.org
Aanand Varanasi has been helping industry-leading icons in technology grow and build through acquisition of superior leaders and outstanding talent for more than 20 years. He has been practicing from Silicon Valley but filling key roles in key locations all over the world. Aanand leads assignments across the software, internet, and technology sectors.
Starting his career in executive search working for a Korn Ferry acquisition, Aanand brings an inside perspective to executive search, having spent 14 years as the head of HR and head of Talent for corporations including Medallia, Palm and VMware. While at VMware, Aanand was responsible for finding leaders across all functions and locations, organically growing the teams from 200 people, through a successful acquisition by EMC, then IPO, to more than 13,000 in headcount globally and $3B in revenue. Aanand personally conducted searches for VMware leaders across all geographies as VMware opened up global operations in all continents.
Aanand spent his undergraduate education studying Biology at the University of California San Diego and is currently studying business at Notre Dame de Namur University.
In his personal time, Aanand enjoys family time with his son. He frequents the local mountains, competes in vintage automobile racing, and enjoys boating on the bay.e: email@example.com
Based in Shanghai, James is a Partner in Calibre One’s Asia Pacific practice. He works in key technology sectors, including hardware (semiconductors, solar, and contract manufacturing), software (enterprise software, data analytics, social media technologies, mobile ecosystem, M2M, and payment technologies), digital media, and business services. James also has a keen interest in innovative, technology-enabled industrial, healthcare, and consumer businesses.
Prior to joining Calibre One, James started his career in search as a Partner at Heidrick & Struggles, establishing their China business in 2000. He was then a Partner for Korn/Ferry International in Melbourne, before joining a boutique firm in 2011. In addition to having personal experience leading start-up companies, James has drawn upon his business leadership and consulting experience to assist clients in building leadership teams in a range of technology, industrial, consumer, and distribution businesses. He has advised on the appointment of board directors, chief executives, managing directors, business unit leaders and senior functional roles across the Asia Pacific region in these sectors.
James began his career in television news and the motion picture industry, before holding accounting, consulting, sales, and general management positions in London and Shanghai, with Coopers & Lybrand, Booz-Allen & Hamilton, and major software vendors, mostly in the enterprise management systems arena, serving clients in the manufacturing, consumer and pharmaceutical industries.
James holds a Bachelor of Arts with Honours in Chinese and Economics from the University of London, School of Oriental and African Studies (SOAS). A native of the U.K. and a proud Australian, he has lived in Shanghai for 15 years, and speaks fluent Mandarin, as well as some Shanghainese and Cantonese.e: firstname.lastname@example.org
Since 2007, Venesa Klein has helped some of the world’s most successful companies build out the critical leadership teams that drive their success.
As Partner at Calibre One, she successfully places executive leaders across a wide range of technology, new media and software sectors. Klein also heads up the company’s Purpose-Driven Practice, which focuses on placing senior-level executives in growing organizations seeking to create innovation with meaningful impact. This includes companies that focus on empowering employees and/or making positive social impact such as benefit corporations, B-Corps, L3Cs and other purpose-driven companies as well as investment companies focused on this emerging sector.
Prior to joining Calibre One, Klein was the senior recruiter at MarketTools, a market research and technology company. She was responsible for full-cycle, international, executive recruiting across the company. Klein was first introduced to corporate recruiting as a consultant at Google where she was recruited to build out their internal executive search function. She began her executive search career at The Pacific Firm, a premier San Francisco Bay Area boutique firm. Her practice concentrated on the recruitment of executives for venture capital funded start-ups and established high-growth companies in consumer branded goods, retail, consumer and business technology.
Klein is an outdoor enthusiast and spends as much time as possible with her young son while exploring. She is an active supporter of a number of animal welfare and environmental causes.e: email@example.com
Tom has been an executive search partner to technology companies big and small for 15 years. In addition to having participated in hundreds of senior-level executive placements, including CEO, CIO, CTO and VP-level roles, clients and industry executives have sought out Tom’s counsel and expertise on a number of growth related topics including executive assessment, incentive compensation, change management and leadership development. Prior to Calibre One, Tom was a founding partner at a leading Silicon Valley boutique executive search firm where his firm focused on C-level and VP-level retained search assignments in technology companies falling into the consumer, mobile, digital media, healthcare, financial services, and software industry sectors. Tom’s career in executive search was preceded by 10+ years of operational experience in high-growth, venture backed startups and he was an early, central figure in the bringing to market of multiple technology innovations. His efforts were instrumental in delivering to consumers the first web-based and mobile email products as well as ground-breaking anti-spam and anti-phishing SaaS solutions to the enterprise. Tom participated in multiple funding events and successful exits, including three startup acquisitions totaling over $200 Million prior to his joining XOOM.com, which went public after only 2 years and $10 million raised. XOOM’s IPO in combination with a $250 Million secondary offering resulted in 30x returns to investors and led to the company's acquisition by General Electric (NBC). Tom studied Political Science at the University of California at Davis where he also worked part-time at the UC Davis Career Center helping graduating seniors polish their resumes and interview skills. Tom was born and raised in California and resides in the Bay Area with his wife and two children where they enjoy skiing, golf, hiking in the Sierras, and fundraising for their local schools.e: firstname.lastname@example.org
Thomas has over 12 years experience in the executive search industry, most recently leading the Digital Technology Practice of a top tier search firm.
Prior to this he enjoyed a long tenure with a large international search firm, gaining promotion to Client Partner within the Technology Practice whilst focusing on the convergence space.
During his earlier career in executive search Thomas worked, inhouse, at a leading venture capital firm, helping build out the management teams of the company’s portfolio investments.
Having graduated as an engineer from Sheffield Halham University, Thomas began his career in product development and research working for a FTSE listed electronics and engineering company.
In his spare time, Thomas is the proud father to two daughters and enjoys attending live music events!e: email@example.com
Doug is responsible for cultivating key relationships with both clients and candidates for Calibre One.
His unique background stems from building relationships at the Board and Executive Level in executive search and from serving as the former CFO of America Online Music and a Leader in PwC's Financial Operations Advisory Practice Group in the Bay Area. After PwC, he built his own successful Advisory practice with an impressive Fortune 500 client list. Furthermore, Doug is a gifted poker player having been actively involved in the local and professional circuit for the last five years. He has also worked for both a global and boutique search firm earlier in his career.
Doug holds an MBA and BS of Finance from Virginia Tech and currently resides in the Bay Area. He enjoys tennis, golf, skiing, cycling, traveling, and music. He also is a former competitive swing and ballroom dancer.e: firstname.lastname@example.org
Ryan brings more than a decade of executive search experience to Calibre One, where he leads search execution and client relationships along with supporting searches across the firm. He’s spent his entire career in recruiting, developing broad exposure to industries and functions and a style focused on excellent process and rigorous execution. He has domain experience includes searches in technology and financial services; functional experience with corporate leadership and government relations.
Prior to joining Calibre One, Ryan was a Partner with IQTalent Partners, where he led executive searches and directed complex recruiting initiatives for a wide variety of clients, including SaaS, consumer internet, and industrial technologies. Ryan joined IQTalent from CapitolWorks, a boutique executive search firm in Washington, DC, where he recruited political, communications, and public affairs professionals to influence technology, healthcare, pharma, finance, and other regulated industries. His clients included the nation's leading lobbying firms, Fortune 500 companies, foreign multinationals, and celebrity-led advocacy organizations. Previous to CapitolWorks, Ryan was with Quellos Group LLC, a hedge fund and investment firm that served large institutions and substantial private clients around the world. Ryan got his start in recruiting at the Seattle, Washington office of Heidrick & Struggles where he was a member of the International Technology Practice during the peak of the dot-com boom.
Ryan earned a bachelor's degree from the University of Puget Sound and a master's degree from the University of Wisconsin-Madison, where he studied International Relations. He is active in politics, loves travel, and spends his weekends on the bike trails and running paths of the Bay Area.e: Ryan.Polich@calibreone.com
Debbie leads assignments throughout North America, EMEA, & APAC to deliver top notch VP & C-level candidates across all functional disciplines for companies of all sizes, from pre-revenue start-ups to Fortune 100.
Prior to joining Calibre One, she spent four years at Leading Edge Partners LLC, a premier boutique search firm based in Silicon Valley. She delivers outstanding results with an exceptional completion rate.
Before joining the executive search industry, Debbie worked in residential Real Estate, servicing the high-end housing market in the mid-peninsula. She also worked in advertising sales and as an Account Manager at AT&T, ranking in the top 10 percent of sales associates, winning numerous honors and awards over the years.
Debbie is an avid athlete who enjoys running, yoga, hiking, and biking. She is also a fabulous gourmet cook.e: email@example.com
Mark is a globally focused retained executive search professional who leads searches across all major functional areas at the CxO and VP levels. With over a decade in the industry, Mark has worked with companies of all sizes, from pre-revenue startups to the Fortune 100 to solve their most pressing leadership challenges. Having successfully completed searches for private, including private equity and venture capital backed, and public companies in and from the Americas, Europe, and Asia, Mark is able to evaluate the leadership, cultural, and technical needs of a client and quickly identify the best executives for his client.
Prior to joining Calibre One, Mark was with Allegis Partners, the retained executive search firm owned by the Allegis Group. While with Allegis Partners, Mark led internal recruiting during a period of rapid growth while serving a variety of clients. Before Allegis Partners, Mark worked at CTPartners, where he was an Associate in the Global Professional Services Practice and worked with the world’s premier consulting and business services firms. Prior to entering search, Mark held positions on Capitol Hill and with Maxjet Airways, a startup airline.
Mark graduated from The George Washington University with a degree in International Affairs and Spanish. Mark is an avid traveler and has visited five continents and lived in Madrid, Spain and San Jose, Costa Rica. A leader in his community, Mark sits on the Board of Directors for Jewish Family Service of Stamford and is the Vice President of an organization affiliated with GWU. Mark and his wife, an educator, live in Stamford, CT and are always planning their next trip. Mark is based in Calibre One’s Stamford office and divides his time among Stamford, New York City, and San Francisco.e: firstname.lastname@example.org
Based in our Singapore office, Jonathan performs research and analytics to assist Calibre One’s AsiaPacific team in placing executives across the technology, internet and mobile spaces.A recent multi-lingual graduate of Brown University, he is additionally responsible for supporting Calibre One’s Asian business development efforts. Since joining Calibre One in 2012, Jonathan has successfully contributed to search assignments ranging from VC-backed firms to Fortune-500 companies in both the US and Asia.e: email@example.com
Kristie Audiat has been with Calibre One since early 2006. Prior to joining Calibre One, she worked as a technical contract recruiter placing candidates from programmer to director level throughout the western United States.Before that, she worked as an in-house recruiter for a multi-billion dollar company based in the Bay Area, where she specialized in recruiting senior technical positions.Kristie is a graduate of The University of California where she majored in International Relations. She is an avid sports enthusiast who enjoys reading political biographies and traveling whenever she can.e: firstname.lastname@example.org
Jen joined Calibre One as an Associate and is responsible for identifying candidates, initiating contact, and guiding them through the entire search process.
Jen started her recruiting career in high-tech publishing as a researcher on internal executive-level positions. After seven years in publishing, Jen worked for Mobius Venture Capital (formerly Softbank Venture Capital) where she was their in-house recruiter responsible for managing external vendor relationships as well as, providing direct placement support from individual contributor to senior management level positions to early-stage companies across multiple business sectors. She also provided human resource and employee relations support to the firm’s portfolio companies. After leaving the venture firm, Jen moved from in-house recruitment to the vendor side of recruitment where she worked for a couple of high-tech staffing firms on permanent and contract placement initiatives for their perspective clients.
Jen is a bay area native. She and her husband have two grown children. In her spare time, Jen enjoys reading a good book, running, practicing yoga or playing indoor soccer. She also loves to watch sports and listen to music.e: email@example.com
Tora is based in our London office and provides research and analysis support to searches across EMEA. She works across a range of sectors but has a particular focus on technology, internet and mobile.
Tora came to Calibre One from another boutique search firm, where she also specialised in tech-focused roles. She read Renaissance Studies & Theology at Exeter University before going to the Courtauld Institute of Art to do a Postgraduate Diploma in the History of Art.e: firstname.lastname@example.org
Antonia is a Senior Associate at Calibre One, and is based out of our London office. She was part of the team that joined Calibre One following its acquisition of Hatton Grange in 2015.
Antonia works across a variety of sectors within the private equity industry making board and functional leadership appointments as well as providing support on transactions with our key private equity clients. Prior to joining Hatton Grange in 2012, Antonia spent three years in executive search focusing on private equity and investment banking assignments.
She holds a BSc Hons in Biological Sciences from the University of Leeds.e: email@example.com
Eloise is based in our London office and provides research support to the Partners on C-level searches. She joined Calibre One from another London-based search firm that specialised in the private equity sector.Eloise graduated from the University of Liverpool with a MA in Classics. Outside of work she is a keen amateur boxer.e: firstname.lastname@example.org
Justine is an Associate based in our San Francisco office. She collaborates with innovative companies across the US in building out their executive leadership teams in consumer internet, enterprise software and clean technology.Justine earned a B.A. in Criminal Justice from San Francisco State University. Justine enjoys riding her motorcycle and traveling in addition to adventures that involve food. e: email@example.com
Vaiva Kamaityte is based in Calibre One’s London office and provides research and analysis supporting European assignments in the professional services space.
Vaiva’s primary focus is on senior roles within the larger audit and advisory firms. Her recent assignments have covered a range of domain areas, including Tax, Risk and Regulatory and Advanced Analytics.
She graduated from Royal Holloway, University of London with a first class degree in Management with Human Resources.e: firstname.lastname@example.org
Suzanne started her career working in admin for KPMG, rising through the ranks in both their Liverpool and Manchester offices.
She moved to London in 1996 to help several ex-KPMG Partners found a start-up financial advisory consultancy.
Suzanne joined Calibre One as Office Manager in 2002 before becoming Head of Finance and Operations in 2008.
Within this role Suzanne had responsibility for overseeing all aspects of Finance, HR, Marketing, IT and Facilities for both the London and San Francisco offices.
Since having her daughter, Tilly, in 2010 Suzanne now works part-time and so focuses mainly on running the Finance function across the group, whilst working closely with each of the local Office Managers to ensure the smooth running of Calibre One globally.e: email@example.com
Sherri Cervelli excels at managing the day-to-day operations of the US team.
She maintains and oversees the San Francisco Office, as well as accounts payable, accounts receivable, human resources and IT. She also provides assistance to the Partners on special projects and marketing. Her attention to detail and expert skills make it possible for the team to function smoothly and effectively.
Prior to joining Calibre One, Sherri worked as an Executive Assistant for five years and has worked in multiple industries including banking, real estate/mortgage and financial.
Sherri holds a Bachelor’s degree in Business Administration with a concentration in Marketing. She is very active and enjoys spin and yoga. She loves city life and spending time with her family, friends, and well loved dog.e: firstname.lastname@example.org
As Executive Assistant, Barbora controls all aspects of administration, working closely on assignments with all the UK Partners, clients and candidates.
Barbora moved to London from the Czech Republic to study English in 2005. She joined Calibre One in 2011 in a role that has proved crucial to the smooth running of the London office.
In addition to her Executive Assistant work, Barbora also controls HR, IT and facilities management functions for the London office.
Barbora holds a Bachelor’s degree in Social Anthropology. Outside of work, she enjoys traveling, reading books and visiting art galleries.e: email@example.com
Jocelin is based in our Menlo Park office and provides administrative support to facilitate smooth and successful day-to-day operations of the firm.
Jocelin also provides assistance to the Director of Operations & Human Resources. Prior to joining Calibre One, Jocelin enjoyed a career in the Food and Beverage and Hospitality industries for over nine years where she managed teams for reputable organizations such as Patina Restaurant Group and Marriott Hotels and Resorts.
Jocelin holds a Bachelor’s Degree in Culinary Arts Management from the country’s premier culinary school, The Culinary Institute of America in Hyde Park, New York. She also completed three years of Liberal Arts studies at the University of California, Davis.
In her free time, Jocelin puts her culinary training to good use by cooking delicious meals for her loved ones.e: firstname.lastname@example.org
As Administrative Assistant, Jessica provides administrative support to the San Francisco team, ensuring successful day-to-day operations of the firm.
Jessica moved from Boston to San Francisco in 2015. Prior to joining Calibre One, Jessica worked in commercial real estate. Jessica holds a Bachelor's Degree in Hospitality and Tourism Management from The University of Massachusetts Amherst.
In her free time, Jessica enjoys traveling, cooking, and spending time with friends and family.e: email@example.com
Shalini Kumar is responsible for Accounts Payable, Accounts Receivable and Payroll for all the US offices.
Prior to joining Calibre One in January of 2016, Shalini worked at Aurora Algae Inc. as a Senior Accountant and has worked in multiple industries including manufacturing, investment and R&D.
Shalini has a Bachelor’s degree in Business Administration with concentration in Finance. She graduated in 2005 and has been working in Accounting for the past 11 years.
Shalini has 2 wonderful boys who keep her on her toes. She is very energetic and enjoys hiking and going to the gym. She also enjoys spending time with her husband and kids.e: Shalini.Kumar@calibreone.com