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Percentage of Capital Coming<br />

from Each Source<br />

100<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

1950s - Services<br />

The Role of MIT Alumni Companies in the U.S. Economy<br />

Figure 14<br />

Startup Funding, MIT Alumni Companies (percentage)<br />

Mfg.<br />

Percentage of Capital Funding for Manufacturing vs. Service Firms<br />

1960s - Services<br />

Mfg.<br />

1970s - Services<br />

electronics firms, 62 percent of software firms, and<br />

62 percent of drug and medical firms. By contrast,<br />

they are host to only 36 percent of firms in all<br />

other industries.<br />

Startup Capital<br />

Most MIT alumni companies start with funds<br />

from the founder’s personal savings or by re-investing<br />

cash flow, as shown in Figure 14. Personal savings<br />

was the primary source determined in earlier studies,<br />

as well (Roberts, 1991, pp.124–159). Little differences<br />

generally exist in the funding patterns across<br />

industries or regions of the country, with but a few<br />

interesting exceptions. Entrepreneurs’ dependence on<br />

personal, family and friends, and informal investors is<br />

not just an MIT-related phenomenon, but seems to<br />

always have been true both in the United States and<br />

globally. Strategic corporate partners are important to<br />

electronics, machinery, and chemical firms. Venture<br />

capitalists are important to software, electronics, and<br />

biotech firms, as well as to chemicals and materials<br />

firms. In none of these cases, however, were these<br />

Mfg.<br />

1980s - Services<br />

Mfg.<br />

1990s - Services<br />

Mfg.<br />

2000s - Services<br />

Capital Sources<br />

Savings<br />

Cash Flow<br />

Federal Government<br />

Angels<br />

VC<br />

Friends and Family<br />

Other<br />

alternate sources more important at the outset than<br />

the founders’ own savings. Although venture capital<br />

was not a major source of initial or even later funding<br />

for smaller firms, it was important for companies that<br />

grew to fifty or more employees, and was even more<br />

significant for companies that achieved 500 or more<br />

workers.<br />

Special Case: MIT Alumni Companies<br />

in California<br />

We estimate that California has the head offices<br />

of 4,100 MIT alumni firms, which employ 526,000<br />

people worldwide and have $134 billion in sales. The<br />

2,675 MIT alumni firms we project for northern<br />

California alone account for the greater part of the<br />

MIT presence in California—$78 billion in worldwide<br />

sales and worldwide employment of 322,100. Total<br />

employment of MIT alumni companies in Silicon<br />

Valley alone is estimated at just over 260,000—about<br />

half of total California employment of MIT alumni<br />

companies. Of this number, some 135,200 work in<br />

manufacturing and 75,500 in electronics.<br />

ENTREPRENEURIAL IMPACT: THE ROLE OF MIT 25<br />

Mfg.

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