a16z
Andreessen Horowitz
9–7
Typical hours
72%
Return offer rate
10
Interns/cohort
Intern accounts
"My mornings were deal flow — reading founder decks and flagging companies matching our thesis. Afternoons were usually research memos or sitting in on partner calls. The learning curve is steep but nobody talks down to you. They treat interns like junior analysts from week one."
"Expect to write 2–3 market maps over the summer. I did deep dives into climate tech and developer tooling. The feedback culture is excellent — my final memo went through four revisions with a partner, which was actually the most valuable part."
GS
Goldman Sachs
9–1am
Typical hours
65%
Return offer rate
~150
Interns/cohort
Intern accounts
"Healthcare group. The hours are real — I averaged midnight most weeks, and there were two all-nighters. But the deal exposure is unmatched: I touched three live M&A processes. Your staffer matters enormously; I had a great one who made sure I was on meaningful work."
"The training week is actually excellent — you learn more about financial modeling in five days than most finance courses teach in a semester. The culture is intensely results-focused but the analysts are surprisingly willing to help if you ask smart questions."
MC
Mayo Clinic
8–5
Typical hours
40%
Return offer rate
~80
Interns/cohort
Intern accounts
"I was embedded in the Cardiology research unit. Every morning I ran patient data pulls, attended case conferences, and assisted with protocol documentation. My PI gave me real authorship on a poster for a conference — that was unexpected and extraordinary for a summer intern."
"The culture is genuinely patient-first — it's not a slogan. You feel it in every team meeting. Hours are reasonable and predictable, which was a welcome contrast to what I'd heard about other healthcare environments. Highly recommend for anyone considering medical school."
Mod
Moderna
9–6
Typical hours
55%
Return offer rate
~60
Interns/cohort
Intern accounts
"Joined the lipid nanoparticle formulation team. I had an independent project from week two — not a toy problem, actual work that fed into a real program. The science is extraordinary and the people are humble about it. Best technical environment I've worked in."
"The intern program is well-structured with weekly speaker series from SVPs and a final symposium where you present to a mixed audience. The Cambridge office is fast, startup-feeling despite the size. If you want to see translational science happen at speed, this is it."
SKD
Skadden, Arps, Slate
9–9
Typical hours
85%
Return offer rate
~70
SAs per cohort
Intern accounts
"Worked in M&A and got staffed on a cross-border acquisition from week one. Did due diligence memos, contract review, and sat in on client calls. The feedback from associates was specific and actionable. Hours were manageable — busiest week was 65 hours, several were under 50."
"Social calendar is packed — the firm invests seriously in making summers memorable. But the work is also real. I was never stuck doing document review for weeks on end. Return offer rate is high and they tell you where you stand early, which reduced the anxiety significantly."
SEQ
Sequoia Capital
9–8
Typical hours
60%
Return offer rate
4–6
Interns/cohort
Intern accounts
"One of the most intellectually intense experiences of my life. The bar for analysis is extremely high — your memos get read by partners who have seen thousands of decks. You get incredible access to founders, portfolio companies, and deal processes. Cohort is tiny so you're never anonymous."
"I came in thinking I'd mostly do market maps. Instead I led a deep dive on vertical SaaS that turned into a real investment thesis the team used. That kind of ownership was not what I expected from a summer internship at a large fund. The brand opens every door you can imagine."
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