**Nine columns have missing values across the 446 rows, and the three missing-data columns I'd treat as the main concern are Stage, Investor and Founders.** No column contains a true SQL NULL (step 0 returned 0 rows). The missing values are blank or empty-placeholder entries such as `[]`. Step 2 showed 0% everywhere because it only checked for NULLs, so the counts below come from the check that treats blank and empty-list values as missing (steps 4–6). Missing counts are from the all-months result (step 6). The percentages are those counts divided by 446 rows. | Column | Missing rows | % missing | |---|---|---| | Stage | 127 | ~28.5% | | Investor | 45 | ~10.1% | | Founders | 38 | ~8.5% | | Amount | 25 | ~5.6% | | Location | 20 | ~4.5% | | Company Name | 19 | ~4.3% | | Sector | 19 | ~4.3% | | Founded | 18 | ~4.0% | | What it does | 18 | ~4.0% | The remaining columns are the ingestion metadata columns. I did not profile them. **Where the gaps are, by month** - **Stage** is the most incomplete column. January has 43 of 115 rows missing (37.4%), March 31 of 98 (31.6%), February 29 of 96 (30.2%) and May 21 of 42 (50%). April is nearly complete, at 3 of 95 (3.2%). - **May** is the main source of the core-field gaps. About 19 of its 42 rows are blank or misaligned, which matches the card's note. That is roughly 45% missing for Company Name, Location and Sector, and about 43% for Founded and What it does. Founders (64%), Investor (50%) and Amount (50%) are worse still. The other four months have essentially none of these gaps. - **Investor** is missing in every month: 4.3% in January, 6.3% in February, 3.1% in March, 10.5% in April and 50% in May. - **Founders** is missing in about 10.5% of April rows and 64% of May rows. February has 1 gap and January and March have none. - **Amount** is missing in 2 rows each in February and April and 21 in May. January and March have none. Excluding May, the core descriptive columns (Company Name, Founded, Location, Sector, What it does) are almost fully populated. The one exception is a single missing Location in April. Stage, Investor and Founders are the columns with genuine gaps in the clean months.