In-House Hiring by Month: Companies Hire on the Law-Firm Calendar

General counsel who ask when do companies hire in-house lawyers usually mean a narrower question: when are law-firm lawyers ready to leave? Sartori & Partners data show that moves from law firms to companies peaked in June 2026, with 188, and again in September, with 187. Those are the same two months in which law firms hired the most laterals from each other: 1,359 lateral moves in June and 1,337 in September. A company recruiting out of private practice is therefore recruiting on the law-firm calendar, against offers that cluster in the same weeks. This report covers May to October 2026, the months in which moves to companies are tracked in full, and sets each month against the lateral market.

Across the window, 953 lawyers left a law firm for a company, an average of 159 a month. June and September sat well above that line. July (165) and August (171) also ran above it, by a smaller margin, while May (117) fell well short and October (125) is still being filled in, as a later section explains. Each move is dated to the month the lawyer started at the company, from public law-firm announcements, firm websites and professional profiles, checked monthly.

The gap between the busiest and the quietest settled month is wide: June brought 1.6 times as many moves to companies as May. For a company, that means the pool of lawyers willing to start a new role is uneven across the year. A search timed to land a start date in early summer or early autumn meets more lawyers who are already in motion.

The lateral market, lawyers moving from one law firm to another, followed the same shape. In the Sartori & Partners lateral database June 2026 counted 1,359 lateral moves and September 1,337, the two highest months between May and October. May had 1,207, July 1,194 and August 1,258.

The overlap has a practical reading. A lawyer who decides to leave a firm usually tests several doors at once: a rival firm, a company, sometimes both. Firms time their offers around the summer and the return after it, and the lawyers who come loose in those weeks are the same people a legal department is trying to reach. A company that opens a search in June or September competes with law-firm offers made at the same moment, often to the same candidates.

Counting moves to companies as a share of lateral moves strips out the calendar and leaves the pull of in-house roles. That share was 13.8% in June and 14.0% in September, and it stayed in the same narrow band in between: 13.8% in July and 13.6% in August. Over the whole window there were 13.1 moves to companies for every hundred lateral moves between firms.

So companies did not win a larger slice of the market in the busy months; they took the same slice of a larger flow. In-house hiring rose and fell with lateral hiring rather than against it. For a hiring company that is a planning rule: when the lateral market is busy, expect more candidates and more competing offers in roughly equal measure, not an easier search.

May 2026 is the one month that breaks the pattern. It counted 117 moves to companies against 1,207 lateral moves, a share of 9.7%, well under every month that followed. Lateral hiring in May was not weak: it had more moves than July. The shortfall sat on the in-house side alone.

May is also the first month of the series, and a single month cannot show whether spring is always slow for in-house moves. What it does show is that, in 2026, the companies that hired from law firms did most of it from June onward. A general counsel who wants a new lawyer in the seat before the summer should expect a thinner field than one who aims for a June start.

The level mix explains much of the timing. Associates were 76.7% of the lawyers who moved to companies, against 61.1% of lateral moves in June and 61.1% in September. Across the six months, lateral associate moves peaked in June (830) and September (817), the same two months as the moves to companies.

Partners moved between firms at a steadier pace: 363 in May, 350 in June and 346 in September. Partners were 11.0% of moves to companies. A company hiring from a firm partnership is less tied to the season than one hiring a mid-level associate, whose market swings with the June and September peaks.

October 2026 shows 125 moves to companies and 926 lateral moves, both well under September. That gap is a recording lag, not a slowdown: start dates are confirmed with a delay, so the newest month always reads low in Sartori & Partners figures and fills in over the following weeks. The in-house share is already in line with the summer, at 13.5%, a sign that the two counts are filling in at a similar rate.

Partners also look more common in October, at 32.8% of lateral moves, because partner moves are confirmed sooner than associate moves. Read October as provisional and plan on the June to September pattern.

Sartori & Partners data point to three practical steps for a general counsel, chief executive or HR head planning a hire from private practice.

First, time the search to the law-firm calendar. Moves to companies peaked in June (188) and September (187). A lawyer who starts in one of those months was usually approached weeks earlier and then served notice, so the conversations behind a June or September start begin in spring or in July. Second, expect competition in the busy months, not a buyer's market. The in-house share of lateral moves held between 13.5% and 14.0% from June to October, so a larger pool of moving lawyers comes with a larger number of law-firm offers. Third, match the timing to the level. Associates account for 76.7% of moves to companies and their market swings most; lateral partner moves barely changed from month to month, so a partner-level hire depends less on the season.