ANN ARBOR, Mich.—The Michigan Venture Capital Association (MVCA) celebrated a year of individual, company, and statewide industry achievement at its Annual Dinner held November 7 at the Inn at St. John’s in Plymouth. Over 145 members of the Michigan venture community attended the evening event, where incoming Chairman Tim Petersen introduced members of the organization’s 2012 Board of Directors. They include:
• Tim Petersen (Chairman), Arboretum Ventures
• Ron Reed (Vice Chairman/Past Chairman), Seneca Partners
• Jim Adox, (Vice-Chairman/Treasurer), Venture Investors
• Jeff Bocan, Beringea
• Hugo Braun, North Coast Technology Investors
• Pete Farner, TGap Ventures
• Mark Horne, Plymouth Management Company
• Tom Kinnear, U-M Ross School of Business Zell Lurie Institute
• Jon Lauckner, GM Ventures
• Chris Rizik, Renaissance Venture Capital Fund
• Skip Simms, Ann Arbor SPARK
• Mina Sooch, Apjohn Ventures
• Jody Vanderwel, Grand Angels
• Ken Van Heel, Dow Chemical Company
• Donald Walker, Arbor Partners

Pete Farner, Mark Horne and Jon Lauckner are new to the board and begin three-year terms while former director John McIlwraith of Blue Chip Venture Company completes his board involvement after a six-year term.

“It was a wonderful evening that really celebrated the best of the best in our industry,” said Merrill Guerra, Executive Director of the MVCA. “We’re pleased so many venture investors, portfolio company executives, development officials and other supporters could join us, showing the growth and success the venture capital community has demonstrated in Michigan.”

Managing Partner Mark Horne reported today that fund-raising for Plymouth Venture Partners II has
successfully concluded with $41 million of capital committed (slightly above the target range of $30 to $40
million).  The strategy of Plymouth Ventures II is to provide growth capital to young companies headquartered in the
Great Lakes region that have begun commercialization of their products or services in the market and need
capital for their next growth step. Plymouth Ventures II is looking for companies seeking up to $5 million in
total capital.

Mark Horne commented, “We have seen a considerable increase in the number of Great Lakes early stage
companies, but there is a significant shortage of capital to support their growth. Our new Fund has been
raised to meet this need.”

Mr. Horne added, “This is the final closing of Plymouth Ventures II. Through earlier closings the Fund has
already invested in three companies. These companies have implemented their growth plans and are
demonstrating the importance of the timely raising of such capital.”

Plymouth Ventures II follows on the heels of Fund I which completed its new investment cycle in 2009 and has
been in a successful exit mode in recent years.  For more information on the investment criteria of Fund II, see www.plymouthvc.com.

Mark Horne, Managing Partner of Plymouth Venture Partners I, L.P. has announced that
Plymouth’s Company of the Year is Accuri Cytometers. In making the announcement, Horne
commented: “Accuri essentially created a new market in personal use flow cytometry, and then
demonstrated outstanding execution in designing and building world class products to serve that
market. The results were measured in outstanding shareholders returns.”

During a recent award event, the following key people were recognized:

• Accuri’s founders: Jennifer Baird, Collin Rich
• Accuri’s CEO at point of exit: Jeffrey Williams
• Board Member who represented Plymouth from Accuri’s formation to exit: Walter Young

When asked about the award’s criteria, Mark Horne listed four characteristics:

• Exceptional leadership
• Exceptional execution of the Business Plan
• Exceptional increase in shareholder values
• Exceptional governance

Plymouth’s Annual Award, named the Coupe de Ville Award, has now been awarded three
times. The Award was inspired by the immortal words of the entrepreneurial rocker Meat Loaf
in his famous ballad “Two out of Three Ain’t Bad”, where he gave the following advice to
venture capitalists:

You’ll never find your gold on a sandy beach
You’ll never drill for oil on a city street
I know you’re looking for a ruby in a mountain of rocks
But there ain’t no Coupe deVille hiding at the bottom of a Cracker Jack box

In reviewing numerous business plans Plymouth has certainly seen its share of empty Cracker
Jack boxes, but occasionally PVP does find a Coupe deVille. Each June one PVP Portfolio
Company will receive the Coupe deVille Award in recognition of its outstanding performance.

Kalamazoo, MI – Plymouth Management Company (PMC) announced its third investment from Plymouth Venture Partners Fund II (PVP II) in Lynx Network Group (LNG) of Kalamazoo, Michigan. Lynx Network Group is a full service  telecommunications company specializing in advancing high-speed next generation infrastructure in tier 2 and tier 3 markets where traditional infrastructure is not capable of meeting demand. The company is currently constructing 1,000 miles of fiber optic network infrastructure throughout Michigan for the purposes of connecting businesses, organizations and wireless service providers that demand resilient and ultrafast infrastructure. The fiber optic
network project will connect communities throughout the Northern, Western, Eastern and Southern
boundaries of Michigan’s Lower Peninsula, as well as Central and Mid Michigan. Among the cities slated
to be part of the fiber optic network are Monroe, Adrian, Hillsdale, Coldwater, Three Rivers, Benton
Harbor, South Haven, Zeeland, Grand Haven, Muskegon, Ludington, Manistee, Beulah, Traverse City,
Kalkaska, Charlevoix, Petoskey, Mackinaw City, Gaylord, Grayling, Houghton Lake, Clare, Mt. Pleasant,
Midland, Bay City, and Oscoda.

The goal of the project is to provide high-performance, lower-cost, fiber-based communications services
(including internet access) to underserved areas throughout Michigan. Funding for this fiber optic
network project will help Lynx Network Group to attract and retain jobs for Michigan-based businesses
that require advanced, high-speed communications to remain competitive.  Currently underway, Lynx Network Group estimates that more than half of the project will be complete by year-end, and the full network will be operational in 2012.

Mark Horne, PMC’s Chief Executive Officer commented, “The management team at Lynx Network Group
brings great vision and a track record of solid execution. PMC’s investment into Lynx will further expand
their capabilities and significantly change the landscape of Michigan and its communities. The funding
also provides the company with a strong financial foundation to support growth for years to come.”
Gregg Rutgers, Founder at Lynx Network Group added, “We are excited to be in partnership with PMC
for this expansion and growth stage. Their fund has demonstrated a real commitment to Michigan
companies; we’re looking forward to adding their team’s exceptional business and industry expertise to
our Board.”

About Plymouth Venture Partners II, L.P.
Fund II is a follow-on fund to Plymouth Venture Partners Fund I. Plymouth Venture Partners I became
fully invested in 2009 after completing investments in 29 companies. Plymouth Venture Partners II
invests in early expansion stage companies in the Great Lakes region. Plymouth Ventures II is actively
looking for great early expansion-stage companies in this region. Visit www.plymouthvc.com for more
information.

About Plymouth Management Company
Plymouth Management Company is the manager for Plymouth Venture Partners I and Plymouth
Venture Partners II. The company has four partners: Mark Horne, Ian Bund, Bob Savage, and Jeff Barry,
with offices in Ann Arbor, Michigan and Toledo, Ohio. Visit www.plymouthvc.com for more information

About Lynx Network Group
Founded in 2003, by three Michigan-born telecom industry veterans, Lynx Network Group is a premier
provider of wholesale and retail telecommunication services in the Midwest. As a commercial
participant in the REACH 3MC network, Lynx Network Group provides a broad range of end-to-end
communications solutions to Businesses, CLECs, ILECS, Resellers, and Wireline/Wireless Carriers. Our
network scalability and depth of services is coupled with a service management team that enables
businesses to advance. Visit www.lynxnetworkgroup.com for more information.

Mark Horne, Managing Partner of Plymouth Venture Partners I, L.P. announced the completion of three portfolio company exits at the firm’s Annual Meeting held today in Ann Arbor, Michigan.

Commenting to the firm’s Members, Mr. Horne said, “These exits bring the total exits since inception to fifteen (15) taking us well into the completion of this highly successful fund.”

Two of the exits, are to strategic buyers. The third, Toledo’s regional telephone company, American Broadband and Telecommunications, resulted from a company buyback from its strong cash flow.

About Plymouth Management Company

Plymouth Management Company manages two venture capital partnerships: Plymouth Venture Partners I and Plymouth Venture Partners II.  Plymouth Venture Partners I made a total of 29 investments from 2003-2008 and is fully invested. Plymouth Venture Partners II is completing its second close this month, and has begun making investments.

The firm’s focus is on financing the next stage of growth of Michigan, Ohio and other Great Lakes area companies.

The firm’s partners are:

Mark Horne, Managing Partner                 mhorne@plymouthvc.com
Ian Bund, Chairman                                        ibund@plymouthvc.com
Jeff Barry, Senior Vice President               jbarry@plymouthvc.com
Bob Savage, Jr., Senior Vice President    bsavage@plymouthvc.com

For more information, please visit www.plymouthvc.com.